Power supply control system, method and terminal device

Abstract

A power supply control system, method, and terminal device include an interface module, a power management unit (PMU), a battery, a load system, and a power supply system. The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery. The second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system. The inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein the first end of the inductor switch module is connected to the parallel connection of Q1 and one end of the first inductor, and the second end of the inductor switch module is connected to the parallel connection of Q1 and the other end of the first inductor. Embodiments of the present application can reduce the use of external voltage transformer circuits, saving motherboard space and device costs.

Description

Technical Field

[0001] The present application relates to the field of electronic circuit technology, and in particular to a power supply control system, method, and terminal device. Background Art

[0002] When connected to an external power source, the terminal device can charge its battery. When not connected to an external battery, the battery must power the terminal device's load system. During this process, the battery voltage must be increased by connecting to an external boost module. This module then boosts the battery voltage before powering the load system. This requires an external boost circuit, which increases component cost and occupies circuit integration space. Summary of the Invention

[0003] The embodiments of the present application provide a power supply control system, method, and terminal device, which can be used to save motherboard space and save equipment costs.

[0004] In a first aspect, an embodiment of the present application provides a terminal device, which includes an interface module, a power management unit PMU, a battery, a load system and a power supply system; wherein: the power supply system includes a charge pump system and an inductor switch module, the first end of the inductor switch module is connected to the first end of the charge pump system, and the second end of the inductor switch module is connected to the battery; the second end of the charge pump system is connected to the interface module, the third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, the first end of the inductor switch module is one end of the parallel Q1 and the first inductor, and the second end of the inductor switch module is the other end of the parallel Q1 and the first inductor.

[0005] In this embodiment, a charge pump system and an inductive switch module are connected in series. During battery charging, the charge pump system's voltage-stepping capability is used to charge the battery. During battery discharge, the charge pump system and the inductive switch module's voltage-stepping capability are used to boost the battery voltage and supply power to the load. This boosting of the voltage before it reaches the PMU eliminates the need for a separate boost device after the PMU, reducing circuit component costs and internal integration space, while improving circuit performance.

[0006] In one possible implementation, when the battery is being charged via the interface module, Q1 is on, and the charge pump system steps down the input voltage of the interface module. When the battery supplies power to the PMU via the power supply system, Q1 is off, and the power supply system steps up the battery voltage. Thus, by connecting the charge pump system and the inductive switch module in series, the step-down capability of the charge pump system is utilized to charge the battery during battery charging; and the step-up capability of the charge pump system and the inductive switch module is utilized to step up the battery voltage to supply power to the load during battery discharge. This boosting of the voltage before it reaches the PMU eliminates the need for a separate boost device after the PMU, reduces circuit component costs, saves internal integration space, and improves circuit performance.

[0007] In one possible implementation, the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; the first end of Q2 serves as the second end of the charge pump system, and the first end of Q3 serves as the third end of the charge pump system; the second end of Q2 connects the second end of Q3 and the first end of the transformer, and the second end of the transformer serves as the first end of the charge pump system. This allows for control over the needs of different usage scenarios and improves the circuit's adaptability.

[0008] In a possible implementation, the voltage transformation parameter of the charge pump system is one of 2:1, 3:1 and 4:1.

[0009] In one possible embodiment, the transformer includes a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1, and a second capacitor C2; wherein the first end of Q4 is connected to the second end of Q2 and the second end of Q3; the second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and serves as the first end of the charge pump system; the second end of Q6 is connected to the second end of C1 and the first end of Q7, and the second end of Q7 and the second end of C2 are grounded; and the first end of Q3 is connected to the first end of C2. In this way, the charge pump system can be connected in series with the inductive switch module. During battery discharge, the charge pump system and the inductive switch module boost the battery voltage, boosting the voltage before it is input to the PMU. This reduces the need for boosting after the PMU and the need for a separate boost device, saving circuit component costs, saving internal integration space, and improving circuit performance.

[0010] In one possible embodiment, when the battery supplies power to the PMU, the switch module of the power supply system switches alternately according to a first state, a second state, a third state, and a fourth state. In the first state, Q3, Q4, and Q5 are in an on-state; Q1, Q2, Q6, and Q7 are in an off-state. In the second state, Q5 and Q7 are in an on-state; Q1, Q2, Q3, Q4, and Q6 are in an off-state. In the third state, Q3, Q4, and Q6 are in an on-state; Q1, Q2, Q5, and Q7 are in an off-state. In the fourth state, Q6 and Q7 are in an on-state; Q1, Q2, Q3, Q4, and Q5 are in an off-state. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different operating states to perform the boost function, thereby saving circuit component costs and internal integration space.

[0011] In a possible implementation, the transformer includes an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3; the second end of C3 is connected to the first end of Q9 and the first end of Q10; the second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4; the second end of C4 is connected to the first end of Q12 and the first end of Q13; the second end of Q11 is connected to the second end of Q12 and serves as the first end of the charge pump system; and the second end of Q10 and the second end of Q13 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0012] In one possible embodiment, when the battery supplies power to the PMU, the switch module of the power supply system alternates between a first state and a second state. In the first state, Q3, Q8, Q10, Q11, and Q13 are in an on-state, while Q1, Q2, Q9, and Q12 are in an off-state. In the second state, Q3, Q9, and Q12 are in an on-state, while Q1, Q2, Q8, Q10, Q11, and Q13 are in an off-state. In this way, during battery discharge, the switch module of the power supply system can be controlled to operate in different operating states to perform a voltage boost function, thereby saving circuit component costs and internal integration space.

[0013] In a possible implementation, the transformer includes a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an eighth capacitor C8; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q14, and the first end of C5; the second end of Q14 is connected to the second end of Q15 and the first end of C6; the second end of C6 is connected to the second end of Q2. The first end of Q16 is connected to the first end of Q17; the second end of Q17 is connected to the second end of Q18 and the first end of C7; the second end of C7 is connected to the first end of Q19 and the first end of Q20; the second end of Q20 is connected to the second end of Q21 and the first end of C8; the second end of C8 is connected to the first end of Q22 and the first end of Q23; the first end of Q15 is connected to the first end of Q18, the first end of Q21, and the second end of Q23, and serves as the first end of the charge pump system; the second end of C5, the second end of Q16, the second end of Q19, and the second end of Q22 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During battery discharge, the charge pump system and the inductive switch module boost the battery voltage, boosting the voltage before it is input to the PMU. This reduces the need for boosting after the PMU and the need for a separate boost device, saving circuit component costs, saving internal integration space, and improving circuit performance.

[0014] In a possible implementation, when the battery supplies power to the PMU, the switch module of the power supply system switches in turn according to a first state, a second state, a third state, and a fourth state; in the first state, Q3, Q14, and Q15 are in an on state; Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22, and Q23 are in an off state; in the second state, Q3, Q14, Q15, Q16, Q18, Q19, Q21, and Q22 are in an on state. In the first state, Q1, Q2, Q17, Q20, and Q23 are in the off state; in the third state, Q3, Q14, Q17, Q20, and Q23 are in the on state; Q1, Q2, Q15, Q16, Q18, Q19, Q21, and Q22 are in the off state; in the fourth state, Q3, Q22, and Q23 are in the on state; and Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19, and Q21 are in the off state. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to complete the boost function, thereby saving circuit component costs and internal integration space.

[0015] In a possible implementation, the transformer includes a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9; the second end of Q24 is connected to the first end of Q25 and the first end of C10; the second end of Q25 is connected to the first end of Q26 and the first end of C11; the second end of Q26 is connected to the first end of Q27 and the first end of Q28, and serves as the first end of the charge pump system; the second end of Q27 is connected to the second end of C10 and the first end of Q29; the second end of Q28 is connected to the first end of Q30, the second end of C9, and the second end of C11; and the second end of Q29 and the second end of Q30 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0016] In one possible embodiment, when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state. In the first state, Q24, Q26, Q27, and Q30 are in an on-state; Q1, Q2, Q3, Q25, Q28, and Q29 are in an off-state. In the second state, Q3, Q25, Q28, and Q29 are in an on-state; Q1, Q2, Q24, Q26, Q27, and Q30 are in an off-state. In this way, during battery discharge, the switch module of the power supply system can be controlled to operate in different operating states to perform a voltage boost function, thereby saving circuit component costs and internal integration space.

[0017] In a possible implementation, the transformer includes a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a forty-first switch module Q41, a forty-second switch module Q42, a forty-third switch module Q43, a forty-fourth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, and a fifteenth capacitor C15; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q31, and the first end of Q32; the second end of Q31 is connected to the first end of Q33 and the first end of C12; the second end of Q32 is connected to the first end of Q34 end and the first end of C13; the second end of Q33 is connected to the first end of Q35, the first end of Q36 and the first end of C15; the second end of Q34 is connected to the first end of Q37, the first end of Q38 and the first end of C14; the second end of Q37 is connected to the second end of C12 and the first end of Q39; the second end of Q36 is connected to the second end of C13 and the first end of Q44; the second end of Q38 is connected to the first end of Q40, the second end of Q35 and the first end of Q42, and is the first end of the charge pump system; the second end of Q40 is connected to the second end of C14 and the first end of Q41; the second end of Q42 is connected to the first end of Q43 and the first end of C15; the second end of Q39, the second end of Q41, the second end of Q43 and the second end of Q44 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0018] In a possible implementation, when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state; in the first state, Q3, Q32, Q33, Q36, Q38, Q39, Q41, and Q42 are in an on state; Q1, Q2, Q31, Q34, Q35, Q37, Q40, Q43, and Q44 are in an off state; in the second state, Q3, Q31, Q34, Q35, Q37, Q40, Q43, and Q44 are in an on state; Q1, Q2, Q32, Q33, Q36, Q38, Q39, Q41, and Q42 are in an off state. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to complete the boost function, thereby saving circuit device costs and internal integration space.

[0019] In a second aspect, an embodiment of the present application provides a power supply control system, which includes an interface module, a power management unit PMU, a battery, a load system and a power supply system; wherein: the power supply system includes a charge pump system and an inductor switch module, the first end of the inductor switch module is connected to the first end of the charge pump system, and the second end of the inductor switch module is connected to the battery; the second end of the charge pump system is connected to the interface module, the third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, the first end of the inductor switch module is one end of the parallel Q1 and the first inductor, and the second end of the inductor switch module is the other end of the parallel Q1 and the first inductor.

[0020] In this embodiment, a charge pump system and an inductive switch module are connected in series. During battery charging, the charge pump system's voltage-stepping capability is used to charge the battery. During battery discharge, the charge pump system and the inductive switch module's voltage-stepping capability are used to boost the battery voltage and supply power to the load. This boosting of the voltage before it reaches the PMU eliminates the need for a separate boost device after the PMU, reducing circuit component costs and internal integration space, while improving circuit performance.

[0021] In one possible implementation, when the battery is being charged via the interface module, Q1 is on, and the charge pump system steps down the input voltage of the interface module. When the battery supplies power to the PMU via the power supply system, Q1 is off, and the power supply system steps up the battery voltage. Thus, by connecting the charge pump system and the inductive switch module in series, the step-down capability of the charge pump system is utilized to charge the battery during battery charging; and the step-up capability of the charge pump system and the inductive switch module is utilized to step up the battery voltage to supply power to the load during battery discharge. This boosting of the voltage before it reaches the PMU eliminates the need for a separate boost device after the PMU, reduces circuit component costs, saves internal integration space, and improves circuit performance.

[0022] In one possible implementation, the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; the first end of Q2 serves as the second end of the charge pump system, and the first end of Q3 serves as the third end of the charge pump system; the second end of Q2 connects the second end of Q3 and the first end of the transformer, and the second end of the transformer serves as the first end of the charge pump system. This allows for control over the needs of different usage scenarios and improves the circuit's adaptability.

[0023] In a possible implementation, the voltage transformation parameter of the charge pump system is one of 2:1, 3:1 and 4:1.

[0024] In one possible embodiment, the transformer includes a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1, and a second capacitor C2; wherein the first end of Q4 is connected to the second end of Q2 and the second end of Q3; the second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and serves as the first end of the charge pump system; the second end of Q6 is connected to the second end of C1 and the first end of Q7, and the second end of Q7 and the second end of C2 are grounded; and the first end of Q3 is connected to the first end of C2. In this way, the charge pump system can be connected in series with the inductive switch module. During battery discharge, the charge pump system and the inductive switch module boost the battery voltage, boosting the voltage before it is input to the PMU. This reduces the need for boosting after the PMU and the need for a separate boost device, saving circuit component costs, saving internal integration space, and improving circuit performance.

[0025] In one possible embodiment, when the battery supplies power to the PMU, the switch module of the power supply system switches alternately according to a first state, a second state, a third state, and a fourth state. In the first state, Q3, Q4, and Q5 are in an on-state; Q1, Q2, Q6, and Q7 are in an off-state. In the second state, Q5 and Q7 are in an on-state; Q1, Q2, Q3, Q4, and Q6 are in an off-state. In the third state, Q3, Q4, and Q6 are in an on-state; Q1, Q2, Q5, and Q7 are in an off-state. In the fourth state, Q6 and Q7 are in an on-state; Q1, Q2, Q3, Q4, and Q5 are in an off-state. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different operating states to perform the boost function, thereby saving circuit component costs and internal integration space.

[0026] In a possible implementation, the transformer includes an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3; the second end of C3 is connected to the first end of Q9 and the first end of Q10; the second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4; the second end of C4 is connected to the first end of Q12 and the first end of Q13; the second end of Q11 is connected to the second end of Q12 and serves as the first end of the charge pump system; and the second end of Q10 and the second end of Q13 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0027] In one possible embodiment, when the battery supplies power to the PMU, the switch module of the power supply system alternates between a first state and a second state. In the first state, Q3, Q8, Q10, Q11, and Q13 are in an on-state, while Q1, Q2, Q9, and Q12 are in an off-state. In the second state, Q3, Q9, and Q12 are in an on-state, while Q1, Q2, Q8, Q10, Q11, and Q13 are in an off-state. In this way, during battery discharge, the switch module of the power supply system can be controlled to operate in different operating states to perform a voltage boost function, thereby saving circuit component costs and internal integration space.

[0028] In a possible implementation, the transformer includes a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an eighth capacitor C8; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q14, and the first end of C5; the second end of Q14 is connected to the second end of Q15 and the first end of C6; the second end of C6 is connected to the second end of Q2. The first end of Q16 is connected to the first end of Q17; the second end of Q17 is connected to the second end of Q18 and the first end of C7; the second end of C7 is connected to the first end of Q19 and the first end of Q20; the second end of Q20 is connected to the second end of Q21 and the first end of C8; the second end of C8 is connected to the first end of Q22 and the first end of Q23; the first end of Q15 is connected to the first end of Q18, the first end of Q21, and the second end of Q23, and serves as the first end of the charge pump system; the second end of C5, the second end of Q16, the second end of Q19, and the second end of Q22 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During battery discharge, the charge pump system and the inductive switch module boost the battery voltage, boosting the voltage before it is input to the PMU. This reduces the need for boosting after the PMU and the need for a separate boost device, saving circuit component costs, saving internal integration space, and improving circuit performance.

[0029] In a possible implementation, when the battery supplies power to the PMU, the switch module of the power supply system switches in turn according to a first state, a second state, a third state, and a fourth state; in the first state, Q3, Q14, and Q15 are in an on state; Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22, and Q23 are in an off state; in the second state, Q3, Q14, Q15, Q16, Q18, Q19, Q21, and Q22 are in an on state. In the first state, Q1, Q2, Q17, Q20, and Q23 are in the off state; in the third state, Q3, Q14, Q17, Q20, and Q23 are in the on state; Q1, Q2, Q15, Q16, Q18, Q19, Q21, and Q22 are in the off state; in the fourth state, Q3, Q22, and Q23 are in the on state; and Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19, and Q21 are in the off state. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to complete the boost function, thereby saving circuit component costs and internal integration space.

[0030] In a possible implementation, the transformer includes a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9; the second end of Q24 is connected to the first end of Q25 and the first end of C10; the second end of Q25 is connected to the first end of Q26 and the first end of C11; the second end of Q26 is connected to the first end of Q27 and the first end of Q28, and serves as the first end of the charge pump system; the second end of Q27 is connected to the second end of C10 and the first end of Q29; the second end of Q28 is connected to the first end of Q30, the second end of C9, and the second end of C11; and the second end of Q29 and the second end of Q30 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0031] In one possible embodiment, when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state. In the first state, Q24, Q26, Q27, and Q30 are in an on-state; Q1, Q2, Q3, Q25, Q28, and Q29 are in an off-state. In the second state, Q3, Q25, Q28, and Q29 are in an on-state; Q1, Q2, Q24, Q26, Q27, and Q30 are in an off-state. In this way, during battery discharge, the switch module of the power supply system can be controlled to operate in different operating states to perform a voltage boost function, thereby saving circuit component costs and internal integration space.

[0032] In a possible implementation, the transformer includes a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a forty-first switch module Q41, a forty-second switch module Q42, a forty-third switch module Q43, a forty-fourth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, and a fifteenth capacitor C15; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q31, and the first end of Q32; the second end of Q31 is connected to the first end of Q33 and the first end of C12; the second end of Q32 is connected to the first end of Q34 end and the first end of C13; the second end of Q33 is connected to the first end of Q35, the first end of Q36 and the first end of C15; the second end of Q34 is connected to the first end of Q37, the first end of Q38 and the first end of C14; the second end of Q37 is connected to the second end of C12 and the first end of Q39; the second end of Q36 is connected to the second end of C13 and the first end of Q44; the second end of Q38 is connected to the first end of Q40, the second end of Q35 and the first end of Q42, and is the first end of the charge pump system; the second end of Q40 is connected to the second end of C14 and the first end of Q41; the second end of Q42 is connected to the first end of Q43 and the first end of C15; the second end of Q39, the second end of Q41, the second end of Q43 and the second end of Q44 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0033] In a possible implementation, when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state; in the first state, Q3, Q32, Q33, Q36, Q38, Q39, Q41, and Q42 are in an on state; Q1, Q2, Q31, Q34, Q35, Q37, Q40, Q43, and Q44 are in an off state; in the second state, Q3, Q31, Q34, Q35, Q37, Q40, Q43, and Q44 are in an on state; Q1, Q2, Q32, Q33, Q36, Q38, Q39, Q41, and Q42 are in an off state. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to complete the boost function, thereby saving circuit device costs and internal integration space.

[0034] In a third aspect, an embodiment of the present application provides a power supply control method, which is applied to a terminal device, wherein the terminal device includes an interface module, a power management unit PMU, a battery, a load system and a power supply system; wherein: the power supply system includes a charge pump system and an inductor switch module, the first end of the inductor switch module is connected to the first end of the charge pump system, and the second end of the inductor switch module is connected to the battery; the second end of the charge pump system is connected to the interface module, the third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, the first end of the inductor switch module is one end of the parallel Q1 and the first inductor, and the second end of the inductor switch module is the other end of the parallel Q1 and the first inductor; when the battery is charged through the interface module, the terminal device controls Q1 to turn on and controls the charge pump system to step down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, the terminal device controls Q1 to turn off and controls the power supply system to boost the battery voltage.

[0035] In this embodiment, a charge pump system and an inductive switch module are connected in series. During battery charging, the charge pump system's voltage-stepping capability is used to charge the battery. During battery discharge, the charge pump system and the inductive switch module's voltage-stepping capability are used to boost the battery voltage and supply power to the load. This boosting of the voltage before it reaches the PMU eliminates the need for a separate boost device after the PMU, reducing circuit component costs and internal integration space, while improving circuit performance.

[0036] In one possible implementation, the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; the first end of Q2 serves as the second end of the charge pump system, and the first end of Q3 serves as the third end of the charge pump system; the second end of Q2 connects the second end of Q3 and the first end of the transformer, and the second end of the transformer serves as the first end of the charge pump system. This allows for control over the needs of different usage scenarios and improves the circuit's adaptability.

[0037] In a possible implementation, the voltage transformation parameter of the charge pump system is one of 2:1, 3:1 and 4:1.

[0038] In one possible embodiment, the transformer includes a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1, and a second capacitor C2; wherein the first end of Q4 is connected to the second end of Q2 and the second end of Q3; the second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and serves as the first end of the charge pump system; the second end of Q6 is connected to the second end of C1 and the first end of Q7, and the second end of Q7 and the second end of C2 are grounded; and the first end of Q3 is connected to the first end of C2. In this way, the charge pump system can be connected in series with the inductive switch module. During battery discharge, the charge pump system and the inductive switch module boost the battery voltage, boosting the voltage before it is input to the PMU. This reduces the need for boosting after the PMU and the need for a separate boost device, saving circuit component costs, saving internal integration space, and improving circuit performance.

[0039] In one possible embodiment, when the battery supplies power to the PMU, the terminal device controls the switch module of the power supply system to switch in sequence according to a first state, a second state, a third state, and a fourth state. In the first state, the terminal device controls Q3, Q4, and Q5 to be turned on, and Q1, Q2, Q6, and Q7 to be turned off. In the second state, the terminal device controls Q5 and Q7 to be turned on, and Q1, Q2, Q3, Q4, and Q6 to be turned off. In the third state, the terminal device controls Q3, Q4, and Q6 to be turned on, and Q1, Q2, Q5, and Q7 to be turned off. In the fourth state, the terminal device controls Q6 and Q7 to be turned on, and Q1, Q2, Q3, Q4, and Q5 to be turned off. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to perform the boost function, thereby saving circuit component costs and internal integration space.

[0040] In a possible implementation, the transformer includes an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3; the second end of C3 is connected to the first end of Q9 and the first end of Q10; the second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4; the second end of C4 is connected to the first end of Q12 and the first end of Q13; the second end of Q11 is connected to the second end of Q12 and serves as the first end of the charge pump system; and the second end of Q10 and the second end of Q13 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0041] In one possible implementation, when the battery supplies power to the PMU, the terminal device controls the switch module of the power supply system to alternately switch between a first state and a second state. In the first state, the terminal device controls Q3, Q8, Q10, Q11, and Q13 to be turned on, and Q1, Q2, Q9, and Q12 to be turned off. In the second state, the terminal device controls Q3, Q9, and Q12 to be turned on, and Q1, Q2, Q8, Q10, Q11, and Q13 to be turned off. In this way, during battery discharge, the switch module of the power supply system can be controlled to operate in different operating states to perform a boost function, thereby saving circuit component costs and internal integration space.

[0042] In a possible implementation, the transformer includes a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an eighth capacitor C8; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q14, and the first end of C5; the second end of Q14 is connected to the second end of Q15 and the first end of C6; the second end of C6 is connected to the second end of Q2. The first end of Q16 is connected to the first end of Q17; the second end of Q17 is connected to the second end of Q18 and the first end of C7; the second end of C7 is connected to the first end of Q19 and the first end of Q20; the second end of Q20 is connected to the second end of Q21 and the first end of C8; the second end of C8 is connected to the first end of Q22 and the first end of Q23; the first end of Q15 is connected to the first end of Q18, the first end of Q21, and the second end of Q23, and serves as the first end of the charge pump system; the second end of C5, the second end of Q16, the second end of Q19, and the second end of Q22 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During battery discharge, the charge pump system and the inductive switch module boost the battery voltage, boosting the voltage before it is input to the PMU. This reduces the need for boosting after the PMU and the need for a separate boost device, saving circuit component costs, saving internal integration space, and improving circuit performance.

[0043] In a possible implementation, when the battery supplies power to the PMU, the terminal device controls the switch module of the power supply system to switch in turn according to the first state, the second state, the third state and the fourth state; in the first state, the terminal device controls Q3, Q14 and Q15 to be turned on, and Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22 and Q23 to be turned off; in the second state, the terminal device controls Q3, Q14, Q15, Q16, Q18, Q19, Q20, Q21, Q22 and Q23 to be turned off. In the third state, the terminal device controls Q3, Q14, Q17, Q20, and Q23 to be turned on, while Q1, Q2, Q15, Q16, Q18, Q19, Q21, and Q22 are turned off. In the fourth state, the terminal device controls Q3, Q22, and Q23 to be turned on, while Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19, and Q21 are turned off. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to complete the boost function, thereby saving circuit component costs and internal integration space.

[0044] In a possible implementation, the transformer includes a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9; the second end of Q24 is connected to the first end of Q25 and the first end of C10; the second end of Q25 is connected to the first end of Q26 and the first end of C11; the second end of Q26 is connected to the first end of Q27 and the first end of Q28, and serves as the first end of the charge pump system; the second end of Q27 is connected to the second end of C10 and the first end of Q29; the second end of Q28 is connected to the first end of Q30, the second end of C9, and the second end of C11; and the second end of Q29 and the second end of Q30 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0045] In one possible implementation, when the battery supplies power to the PMU, the terminal device controls the switch module of the power supply system to alternately switch between a first state and a second state. In the first state, the terminal device controls Q24, Q26, Q27, and Q30 to be turned on, and Q1, Q2, Q3, Q25, Q28, and Q29 to be turned off. In the second state, the terminal device controls Q3, Q25, Q28, and Q29 to be turned on, and Q1, Q2, Q24, Q26, Q27, and Q30 to be turned off. In this way, during battery discharge, the switch module of the power supply system can be controlled to operate in different operating states to perform a boost function, thereby saving circuit component costs and internal integration space.

[0046] In a possible implementation, the transformer includes a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a forty-first switch module Q41, a forty-second switch module Q42, a forty-third switch module Q43, a forty-fourth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, and a fifteenth capacitor C15; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q31, and the first end of Q32; the second end of Q31 is connected to the first end of Q33 and the first end of C12; the second end of Q32 is connected to the first end of Q34 end and the first end of C13; the second end of Q33 is connected to the first end of Q35, the first end of Q36 and the first end of C15; the second end of Q34 is connected to the first end of Q37, the first end of Q38 and the first end of C14; the second end of Q37 is connected to the second end of C12 and the first end of Q39; the second end of Q36 is connected to the second end of C13 and the first end of Q44; the second end of Q38 is connected to the first end of Q40, the second end of Q35 and the first end of Q42, and is the first end of the charge pump system; the second end of Q40 is connected to the second end of C14 and the first end of Q41; the second end of Q42 is connected to the first end of Q43 and the first end of C15; the second end of Q39, the second end of Q41, the second end of Q43 and the second end of Q44 are grounded. In this way, the charge pump system can be connected in series with the inductive switch module. During the battery discharge process, the charge pump system and the inductive switch module increase the battery voltage. The voltage is boosted before it is input to the PMU, reducing the need for boosting after the PMU and the need for a separate boost device. This saves circuit device costs, saves internal integration space, and improves circuit performance.

[0047] In a possible implementation, when the battery supplies power to the PMU, the terminal device controls the switch module of the power supply system to alternately switch between a first state and a second state; in the first state, the terminal device controls Q3, Q32, Q33, Q36, Q38, Q39, Q41, and Q42 to be turned on, and Q1, Q2, Q31, Q34, Q35, Q37, Q40, Q43, and Q44 to be turned off; in the second state, the terminal device controls Q3, Q31, Q34, Q35, Q37, Q40, Q43, and Q44 to be turned on, and Q1, Q2, Q32, Q33, Q36, Q38, Q39, Q41, and Q42 to be turned off. In this way, during the battery discharge process, the switch module of the power supply system can be controlled to operate in different working states to complete the boost function, thereby saving circuit device costs and internal integration space.

[0048] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium comprising instructions, which, when executed on a terminal device, enables the terminal device to execute a power supply control method as described in the third aspect or any possible implementation of the third aspect.

[0049] In the fifth aspect, an embodiment of the present application provides a chip system, which is applied to a terminal device, and the chip system includes one or more processors, which are used to call computer instructions to enable the terminal device to execute a power supply control method as described in the second aspect or any possible implementation method of the second aspect.

[0050] In a sixth aspect, an embodiment of the present application provides a printed circuit board (PCB), which includes the power supply control system in any possible implementation of the second aspect and a device connected to the power supply system.

[0051] In a seventh aspect, an embodiment of the present application provides a chip, which includes the power supply control system in any possible implementation of the second aspect and a device connected to the power supply control system.

[0052] In an eighth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a terminal device, enables the terminal device to execute a power supply control method as described in the third aspect or any possible implementation of the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1This is a schematic diagram of the hardware structure of a terminal device provided in an embodiment of the present application;

[0054] Figure 2A and Figure 2B This is a schematic diagram of the power supply control system structure of a terminal device proposed in an embodiment of the present application;

[0055] Figure 3 This is a schematic diagram of the power supply control system structure of a terminal device proposed in an embodiment of the present application;

[0056] Figure 4A to Figure 4D This is a schematic diagram of a set of working state changes of a power supply system providing power to a load, as proposed in an embodiment of the present application;

[0057] Figure 5 This is a schematic diagram of the power supply control system structure of a terminal device proposed in an embodiment of the present application;

[0058] Figure 6A and Figure 6B This is a schematic diagram of a set of working state changes of a power supply system providing power to a load, as proposed in an embodiment of the present application;

[0059] Figure 7 This is a schematic diagram of the power supply control system structure of a terminal device proposed in an embodiment of the present application;

[0060] Figure 8A to Figure 8D This is a schematic diagram of a set of working state changes of a power supply system providing power to a load, as proposed in an embodiment of the present application;

[0061] Figure 9 This is a schematic diagram of the structure of a power supply control system for another terminal device proposed in an embodiment of the present application;

[0062] Figure 10A and Figure 10B This is a schematic diagram of a set of working state changes of a power supply system providing power to a load, as proposed in an embodiment of the present application;

[0063] Figure 11 This is a schematic diagram of the structure of a power supply control system for another terminal device proposed in an embodiment of the present application;

[0064] Figure 12A and Figure 12B This is a schematic diagram of the working state changes of a power supply system supplying power to a load proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0065] The terms used in the following examples of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in the specification and appended claims of the present application, the singular expressions "a," "an," "said," "above," "the," and "this" are intended to include plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the present application refers to and encompasses any or all possible combinations of one or more of the listed items.

[0066] The terminal device in the embodiments of the present application can be a mobile phone, tablet computer, desktop computer, laptop computer, handheld computer, smart bracelet, super mobile personal computer, netbook, personal phone, personal data assistant, augmented reality (AR) / virtual reality (VR) and other touch screen devices. The present application does not limit the specific form of the terminal device.

[0067] The following introduces the terminal module structure of the terminal device involved in the embodiments of the present application. Figure 1 This is a schematic diagram of the structure of a power supply control system of a terminal device exemplarily disclosed in an embodiment of the present application.

[0068] like Figure 1 As shown, the terminal device may include an interface module, a switching charger (SC) system, a battery, a power management unit (PMU), an external boost module, and a load system.

[0069] The interface module is connected to one end of the charging control module via the Vbus line. The other end of the charging control module is connected to the first end of the external boost module. The second end of the external boost module is connected to the battery. The third end of the external boost module is connected to one end of the power management unit (PMU). The other end of the power management unit (PMU) is connected to the load system, and the PMU provides main power (Vph_pwr) to the load system.

[0070] The interface module can realize the charging function of the terminal device. The interface module can be connected to an external power source and supply power to the battery and PMU of the terminal device through the interface module. For example, the interface module can be a Type-C interface module.

[0071] The charging control system can be a voltage converter that converts the input voltage into a lower output voltage. For example, if the charging control system includes a charge pump system and the charge pump system has a 4:1 voltage transformer, when the input voltage of the charge pump system is 20V, the output voltage is 5V, which is a voltage reduction of four times. The charging control system reduces the voltage and can be used to charge the battery module. The charge pump system can also have a voltage transformer with parameters such as 2:1 or 3:1, which is not limited in this application.

[0072] The battery is the energy storage unit of the terminal device. When the terminal device is connected to a charger, the battery stores electrical energy; when the terminal device is not connected to a charger, the battery provides electrical energy to the PMU module.

[0073] The PMU module is an integrated power management unit for terminal devices. It can provide all the power levels required by the main chip. Integrating several traditionally discrete power management chips into the PMU can achieve higher power conversion efficiency and lower power consumption. The PMU can supply the same power source to the load system.

[0074] An external boost module can boost the battery voltage. This can be a boost circuit that boosts the battery's output voltage to the voltage of the main power supply Vph_pwr required by the load system. For example, the external boost module converts the 3.8V power provided by the battery into a 5V output voltage.

[0075] The load system is the unit that consumes power in the terminal device. The load system is composed of different working modules of the terminal device. For example, the processor (GPU, etc.), memory, RF devices, baseband devices, sensors, and screens, etc., are not specifically limited in this application.

[0076] Optionally, the terminal device's charging control module may include an overvoltage protection (OVP) module (not shown). The interface module and the charge pump system can be connected via the OVP module. The OVP module provides overvoltage protection, meaning it stops voltage output or input when the voltage exceeds a threshold, protecting the circuit from damage caused by high voltage output.

[0077] Combined with the above Figure 1 The hardware module structure of the terminal device is described, and the paths of charging and battery power supply of the terminal device are described respectively.

[0078] Path (1): Charging the battery through the interface module:

[0079] When the terminal device is connected to an external charger (via the interface module), power is supplied to the interface module. The interface module then supplies voltage to the charging control system. The charging control system converts (steps down) the output voltage and then charges the battery.

[0080] Path (2): The battery supplies power to the load system through the PMU:

[0081] When the terminal device is not connected to an external charger, the battery voltage is boosted by an external boost module, and the boosted voltage is provided to the load system through the PMU.

[0082] Path (3): Power the load system through the PMU via the interface module:

[0083] When the terminal device is connected to an external charger, the interface module can provide the stepped-down voltage of the charging control module to the PMU module, and the PMU directly provides the voltage to the load system.

[0084] In the above power supply system, the battery supplies power to the load system, which requires the addition of an external boost module, resulting in high device cost and large integration space.

[0085] In view of the above situation, the embodiment of the present application proposes a power supply control system and a terminal device. Figure 2A This is a schematic diagram of the power supply control system structure of a terminal device disclosed exemplarily in an embodiment of the present application.

[0086] like Figure 2A As shown, the terminal device may include a power supply control system. The power supply control system may include an interface module, a power supply system, a battery, a power management unit PMU, and a load system. The contents of the interface module battery, power management unit PMU, and load system can be referred to. Figure 1 The relevant description is omitted here.

[0087] The power supply system may include a charge pump system and an inductive switch module. One end of the charge pump system can be connected to one end of the inductive switch module. The other end of the inductive switch module serves as the first end of the power supply system and can be connected to a battery. The other end of the charge pump system can serve as the second end of the power supply system and be connected to the interface module. The third end of the power supply system is connected to the PMU.

[0088] The inductive switch module includes a first switch module and a first inductor connected in parallel. The first end of the inductive switch module serves as one end of the parallel connection between the first switch module and the first inductor, and the second end of the inductive switch module serves as the other end of the parallel connection between the first switch module and the first inductor. Specifically, one end of the first inductor is connected to one end of the first switch module, serving as the first end of the inductive switch module, and the other end of the first inductor is connected to the other end of the first switch module, serving as the second end of the inductive switch module. The first end of the inductive switch module is connected to the first end of the charge pump system, and the second end of the inductive switch module (serving as the first end of the power supply system) is connected to the battery.

[0089] While the interface module supplies power to the battery, the output end of the charge pump system is connected to the PMU to supply power to the PMU. The voltage of the interface module can be directly provided to the PMU through the power supply system, and the PMU can directly supply power to the load system.

[0090] Combine Figure 2A The hardware structure of the terminal equipment, Figure 2BThis is a schematic diagram of the hardware structure of a terminal device disclosed in an exemplary embodiment of this application. Figure 2B As shown, the power supply system may include a charge pump system and an inductive switch module.

[0091] The power switch module controls whether the power supply system operates as a charge pump system or a boost circuit. During battery charging, the terminal device controls the first switch module to be in the on state. When the first switch module is in the on state, the power supply system operates as a charge pump system. The voltage of the interface module is then stepped down by the charge pump system and used to charge the battery. When the battery is supplying power to the load through the power supply system, the first switch module is controlled to be in the off state. When the first switch module is in the off state, the first inductor is connected to the circuit to form a reverse buck circuit (boost circuit). The boost circuit boosts the battery voltage and supplies power to the PMU. The PMU then stops stepping up the boosted voltage and supplies power to the load system.

[0092] The charge pump system may include a transformer, a second switch module Q2, and a third switch module Q3. The first end of Q2 serves as the second end of the charge pump system and is connected to the interface module. The first end of Q3 serves as the third end of the charge pump system and is connected to one end of the PMU. The second end of Q2 is connected to the second end of Q3 and the first end of the transformer. The second end of the transformer serves as the first end of the charge pump system.

[0093] The following combination Figure 2A and Figure 2B The structure of the power supply control system is shown, and the paths of terminal device charging and battery power supply are explained respectively.

[0094] Path (4): Charging the battery through the interface module:

[0095] When the terminal device is connected to an external charger (via the interface module), power is supplied to the interface module. The interface module then provides voltage to the charging control system. The charging control system converts the output voltage and then charges the battery module. During this process, the transformer steps down the interface module voltage to output a voltage sufficient to charge the battery.

[0096] Path (5): The battery supplies power to the load system through the PMU:

[0097] When the terminal device is not connected to an external charger, the battery boosts the battery voltage through the inductive switch module and charge pump system in the power supply system, and provides the boosted voltage to the PMU module, which then directly supplies the boosted voltage to the load system. During the battery power supply process, the first inductor L1 in the inductive switch module and the charge pump system in the PMU module combine to form a boost circuit, eliminating the need for an additional boost module after the PMU module.

[0098] Path (6): Power is supplied to the load system through the PMU via the interface module:

[0099] When the terminal device is connected to an external charger, the interface module can provide voltage to the PMU module through the power supply system, and the PMU module does not need to transform the voltage. The PMU voltage is provided to the load system.

[0100] Compared to Figure 1 The hardware module structure in Figure 2A and Figure 2B The terminal equipment does not need to set up an external boost module separately, which saves the space structure and device cost of circuit integration and improves the power supply performance of the power supply system.

[0101] Figure 2A and Figure 2B In the power supply system, the voltage change of the charge pump system can be 2:1 ( Figures 3 to 4D ), 3:1 ( Figures 5 to 6B ) or 4:1 ( Figures 7 to 12B ) of different types. The circuits formed by charge pump systems with different structures and the control logic of the charging control module are different. The following describes the power supply control system structure and control method corresponding to several different charge pump systems.

[0102] First, through Figure 3 The present invention describes a power supply control system and a power supply control method formed by a charge pump system with a pressure plate parameter of 2:1. Figure 3 This is a schematic diagram of the structure of a power supply control system of a terminal device exemplarily disclosed in an embodiment of the present application.

[0103] like Figure 3 As shown, the charge pump system is a 2:1 transformer type. The charge pump system includes a second switch module Q2, a third switch module Q3, a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1, and a second capacitor C2. The first end of Q2 serves as the second end of the charge pump system and is connected to the interface module. The second end of Q2 is connected to the first end of Q3 and the first end of Q4. The second end of Q3 is connected to the first end of C2 and serves as the third end of the charge pump system and is connected to the PMU. The second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and serves as the first end of the charge pump system and is connected to the first end of the inductive switch module. The second end of Q6 is connected to the second end of C1 and the first end of Q7. The second end of Q7 and the second end of C2 are grounded. C2 can be a voltage-stabilizing capacitor at the battery output (input).

[0104] Combine Figure 2A and Figure 2B As shown, Figure 3 The inductor switch module may include a first inductor L1 and a first switch module Q1. One end of L1 is connected to the first end of Q1, serving as the first end of the inductor switch module connected to the first end of the charge pump system. The other end of L1 is connected to the other end of Q1, serving as the second end of the inductor switch module connected to the battery.

[0105] The switch module in the present application may be an insulated gate bipolar transistor IGBT (Insulated Gate Bipolar Transistor), an insulated gate field effect transistor MOS (Metal-Oxide-Semiconductor), or other types of switches. The present application does not limit the specific type.

[0106] Optionally, the terminal device may further include a power supply control module ( Figure 3 (not shown) The power supply control module is used to control the on / off state of all switch modules in the power supply system. Different state combinations of all switch modules in the power supply system correspond to different operating states of the power supply system. The power supply control module can be connected to the control terminal of each switch module in the power supply system and control the operating state of the power supply system by controlling the signals from the control terminals of the switch modules. The power supply control module can control the first switch module Q1, the second switch module Q2, the third switch module Q3, the fourth switch module Q4, the fifth switch module Q5, the sixth switch module Q6, and the seventh switch module Q7. Each of these modules includes a third terminal. The third terminals of Q1, Q2, Q3, Q4, Q5, Q6, and Q7 can all be connected to the power supply control module. The power supply control module can control the on / off state of the corresponding switch transistors via the third terminals of Q1, Q2, Q3, Q4, Q5, Q6, and Q7. For example, when the power supply control module provides a high level to the third terminal of Q2, Q2 is in the on state; when the power supply control module provides a low level to the third terminal of Q2, Q2 is in the off state (which can be considered as disconnected). The control logic of Q1, Q3, Q4, Q5, Q6 and Q7 is similar to the description of Q2 and will not be repeated here.

[0107] The power supply control module controls different switch state combinations of Q1, Q2, Q3, Q4, Q5, Q6 and Q7 to realize the functions of charging the battery and supplying power to the load from the battery.

[0108] First, when the terminal device meets the conditions for charging the battery, Q1 is controlled to be in the on state.

[0109] like Figure 3 As shown in the figure, during charging, Q2 and Q1 are turned on, and switches Q4, Q5, Q6, Q7, and C1 form a 2:1 voltage-converting charge pump. After being stepped down by the step-down charge pump, power is supplied to the battery. At this point, Q3 can be turned on, allowing the interface module to directly power the PMU.

[0110] The charging condition can be that the terminal device is connected to an external power source, the battery is within a chargeable temperature range, and the battery is not fully charged.

[0111] Second, when the terminal device meets the conditions for the battery to supply power to the outside, Q1 is controlled to be in the cut-off state.

[0112] Figure 4A to Figure 4D The embodiment of the present application provides a schematic diagram of a group of working state changes of a power supply system supplying power to a load. Figure 4A to Figure 4D The power control module's power supply control method is described below: When the battery supplies power to the PMU, Q1 and Q2 are turned off, and Q3, Q4, Q5, Q6, Q7, L1, and C1 form a boost circuit. As the switches Q4, Q5, Q6, and Q7 switch, the circuit undergoes three operating phases (four operating states): inductor energy storage, inductor energy release, and capacitor charge and discharge. This boosts the battery voltage for input to the PMU module.

[0113] When the battery supplies power to the PMU, the terminal device may control the switch module of the power supply system to switch in turn according to the first state, the second state, the third state and the fourth state.

[0114] First state: control Q3, Q4 and Q5 to be turned on; Q1, Q2, Q6 and Q7 to be turned off.

[0115] like Figure 4A As shown in Figure 1, the battery supplies power to the PMU through L1-Q5-Q4-Q3. The battery charges L1 and C2, causing the voltage on the capacitor C2 to rise.

[0116] Second state: control Q5 and Q7 to be turned on; Q1, Q2, Q3, Q4 and Q6 to be turned off.

[0117] like Figure 4B As shown, the battery charges L1 and C1, and C2 discharges to the load. The battery charges L1 and C1, causing the voltage on C1 to rise. C2 transfers the energy stored in the first state to the output, causing the voltage across C2 to drop. At this point, C2 supplies power to the PMU.

[0118] The third state: control Q3, Q4 and Q6 to be turned on; Q1, Q2, Q5 and Q7 to be turned off.

[0119] like Figure 4C As shown, in the second state, a voltage difference forms across capacitor C1. Therefore, switching to the third state, C1 is connected in series with the power supply. This increases the voltage difference by double the power output of the power supply, creating a boost logic at the PMU output. Simultaneously, the battery charges L1, C1, and C2, creating a voltage difference across C1 and C2.

[0120] Fourth state: control Q6 and Q7 to be turned on; Q1, Q2, Q3, Q4 and Q5 to be turned off.

[0121] like Figure 4D As shown, L1 stores energy, the battery stores energy for L1, the second capacitor C2 supplies power to the output end, and the voltage across the capacitor C2 drops.

[0122] In addition, to adapt to different voltage requirements, the electronic device can adjust the working time of the first state, the second state, the third state and the fourth state, that is, the output voltage can be adjusted by adjusting the duty cycle of each switch module.

[0123] In the above process, the four states are switched in sequence to form a boost circuit, thereby increasing the battery voltage and outputting the voltage to the load through the PMU. The PMU output voltage is then reduced and then boosted through an external circuit, saving device costs and integration space.

[0124] The terminal device is in a battery charging mode and a battery discharging mode. The on and off of Q1 can correspondingly switch between the two states to ensure the normal power supply process of the circuit.

[0125] Secondly, through Figure 5 The power supply system and control method of the charge pump system with a pressure plate parameter of 3:1 are described. Figure 5 This is a schematic diagram of the structure of a power supply control system of a terminal device exemplarily disclosed in an embodiment of the present application.

[0126] like Figure 5 As shown, the charge pump system has a 3:1 voltage transformer. The charge pump system includes a second switch module Q2, a third switch module Q3, an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4.

[0127] The interface module is connected to the first end of Q2, the power management module is connected to the first end of Q3, the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3. The second end of C3 is connected to the first end of Q9 and the first end of Q10. The second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4. The second end of C4 is connected to the first end of Q12 and the first end of Q13. The second end of Q11 is connected to the second end of Q12 and, as the first end of the charge pump system (i.e., the second end of the transformer), is connected to the first end of the inductive switching module. The second ends of Q10 and Q13 are grounded.

[0128] Among them, the inductive switch module, interface module, power management module and load system can refer to Figure 2A and Figure 2B The relevant description is omitted here.

[0129] First, when the terminal device meets the battery charging conditions, Q1 and Q2 are controlled to be in the on state. At this time, Q3 can be in the on state, and the interface module can directly supply power to the PMU.

[0130] The terminal device can control Q8, Q9, Q10, Q11, Q12 and Q13, as well as C3 and C4 to form a control circuit of a 3:1 charge pump system, and control the interface module to charge the battery.

[0131] Second, when the terminal device meets the conditions for the battery to supply power to the outside, Q1 and Q2 are controlled to be in the cut-off state.

[0132] Figure 6A and Figure 6B The embodiment of the present application provides a schematic diagram of a group of working state changes of the power supply system to the load. Figure 6A and Figure 6B Describe the power supply control method of the power supply control module:

[0133] The power supply control module controls different switch state combinations of Q1, Q2, Q3, Q4, Q5, Q6 and Q7 to realize the functions of charging the battery and supplying power to the battery load. Figure 6A-6B The present application embodiment provides a schematic diagram of a power supply system structure. Figure 6A and Figure 6B Describe the power supply control method of the power supply control module:

[0134] When the battery supplies power to the PMU, the terminal device may control the power supply system to alternately switch between the first state and the second state.

[0135] First state: control Q3, Q8, Q10, Q11 and Q13 to be turned on; Q1, Q2, Q9 and Q12 to be turned off.

[0136] like Figure 6A As shown in Figure 1, the battery charges L1, C3, and C4, supplying power to the PMU. The input voltage flows through inductor L1 to capacitors C3 and C4, causing the voltage on these capacitors to rise. At this point, the battery supplies power to the PMU via the path from L1 to Q11 to Q8 to Q3.

[0137] Second state: control Q3, Q9 and Q12 to be turned on; Q1, Q2, Q8, Q10, Q11 and Q13 to be turned off.

[0138] like Figure 6BAs shown, a conduction path is formed: L1-Q12-C4-Q9-C3-Q3. In the first state, a voltage difference is formed between C3 and C4. Therefore, after switching to the second state, the voltage at the Q3 port increases by the voltage difference between C3 and C4 on the basis of the battery voltage. The Q3 port supplies power to the PMU, forming a boosted voltage.

[0139] It should be noted that, in order to form different boost results (ratios), the electronic device can adjust the duty cycle of the switch module in the first state and the second state, so as to meet different needs, which is not limited in this application.

[0140] Finally, the power supply system and control method formed by the charge pump system with a pressure plate parameter of 4:1 are explained. Figures 7 to 12B The following is a schematic diagram of the power supply system structure of several terminal devices disclosed in the embodiments of the present application. The power supply control method of the power supply control module is described below in combination with different 4:1 charge pump systems.

[0141] The following combination Figures 7 to 8D A power supply system of a 4:1 transformer system is described.

[0142] Figure 7 This is a schematic diagram of the structure of a power supply control system of a terminal device exemplarily disclosed in an embodiment of the present application.

[0143] like Figure 7 As shown, the charge pump system is a 4:1 voltage transformer. The charge pump system includes a second switch module Q2, a third switch module Q3, a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an eighth capacitor C8.

[0144] The interface module is connected to the first end of Q2, the power management module is connected to the first end of Q3, the second end of Q2 is connected to the second end of Q3, the first end of Q14, and the first end of C5. The second end of Q14 is connected to the second end of Q15 and the first end of C6. The second end of C6 is connected to the first end of Q16 and the first end of Q17. The second end of Q17 is connected to the second end of Q18 and the first end of C7. The second end of C7 is connected to the first end of Q19 and the first end of Q20. The second end of Q20 is connected to the second end of Q21 and the first end of C8, and the second end of C8 is connected to the first end of Q22 and the first end of Q23. The first end of Q15 is connected to the first end of Q18, the first end of Q21, and the second end of Q23, and serves as one end of the charge pump system and is connected to one end of the inductive switch module. The second end of C5, the second end of Q16, the second end of Q19, and the second end of Q22 are grounded. C5 is a voltage stabilizing capacitor at the output (input) end.

[0145] Among them, the inductive switch module, interface module, power management module and load system can refer to Figure 2A and Figure 2B The relevant description is omitted here.

[0146] First, when the terminal device meets the conditions for charging the battery, Q1 and Q2 are controlled to be in the on state. At this time, during the charging process, Q3 can be in the on state, and the interface module can directly supply power to the PMU.

[0147] like Figure 7 As shown, the terminal device can control Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21, Q22 and Q23, as well as C5, C6, C7 and C8 to form a control circuit of a 4:1 charge pump system to control the interface module to charge the battery.

[0148] Second, when the terminal device meets the conditions for the battery to supply power to the outside, Q1 and Q2 are controlled to be in the cut-off state.

[0149] exist Figure 7 On the basis of Figure 8A to Figure 8D The embodiment of the present application provides a schematic diagram of a group of working state changes of the power supply system to the load. Figure 8A to Figure 8D Describe the power supply control method of the power supply control module:

[0150] When the battery supplies power to the PMU, the terminal device may control the switch module of the power supply system to switch in turn according to the first state, the second state, the third state and the fourth state.

[0151] First state: Q3, Q14 and Q15 are on; Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22 and Q23 are off.

[0152] like Figure 8A As shown in Figure 1, the PMU is powered radially through the conduction path of L1-Q15-Q14-Q3. In addition, the battery transfers energy to inductor L1 and capacitor C5, causing the voltage across capacitor C5 to rise.

[0153] Second state: Q3, Q14, Q15, Q16, Q18, Q19, Q21 and Q22 are turned on; Q1, Q2, Q17, Q20 and Q23 are turned off.

[0154] like Figure 8B As shown in Figure 1, the PMU is powered radially through the conduction path of L1-Q15-Q14-Q3. The battery charges L1, C5, C6, C7, and C8, and the voltage across C5, C6, C7, and C8 increases, forming a voltage difference.

[0155] The third state: Q3, Q14, Q17, Q20 and Q23 are turned on; Q1, Q2, Q15, Q16, Q18, Q19, Q21 and Q22 are turned off.

[0156] like Figure 8C As shown, the conduction path L1-Q23-C8-Q20-C7-Q17-C6-Q14-Q3 is formed. Since there is a voltage differential across C6, C7, and C8 in the second state, switching to the third state and connecting C6, C7, and C8 in series with L1 increases the voltage differential between C6, C7, and C8, based on the battery output voltage. This creates a higher voltage at Q3's output, thereby raising the output voltage. At this point, the conduction path L1-Q23-C8-Q20-C7-Q17-C6-Q14-C5 is in place, with the battery charging C5 and the voltage across C5 increasing.

[0157] Fourth state: Q3, Q22 and Q23 are turned on; Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19 and Q21 are turned off.

[0158] like Figure 8D As shown, a conduction path of L1-Q23-Q22 is formed. At the same time, when switching from the third state to the fourth state, the voltage across C5 begins to decrease, and C5 transfers energy to the output end, and C5 supplies power to the PMU.

[0159] It should be noted that in order to adapt to different output voltage requirements, the operating time of the first state, the second state, the third state and the fourth state can be adjusted, that is, the output voltage can be adjusted by adjusting the duty cycle of each switch module.

[0160] The following combination Figures 9 to 10B A power supply system of a 4:1 transformer system is described.

[0161] Figure 9 This is a schematic diagram of the power supply control system structure of another terminal device exemplarily disclosed in an embodiment of the present application.

[0162] like Figure 9 As shown, the charge pump system is another 4:1 voltage transformer. The charge pump system includes a second switch module Q2, a third switch module Q3, a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11.

[0163] The interface module is connected to the first end of Q2, the power management module is connected to the first end of Q3, and the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9. The second end of Q24 is connected to the first end of Q25 and the first end of C10. The second end of Q25 is connected to the first end of Q26 and the first end of C11. The second end of Q26 is connected to the first end of Q27 and the first end of Q28, and is connected to one end of the inductive switch module as one end of the charge pump system. The second end of Q27 is connected to the second end of C10 and the first end of Q29. The second end of Q28 is connected to the first end of Q30, the second end of C9, and the second end of C11. The second end of Q29 and the second end of Q30 are grounded.

[0164] Among them, the inductive switch module, interface module, power management module and load system can refer to Figure 2A and Figure 2B The relevant description is omitted here.

[0165] First, when the terminal device meets the conditions for charging the battery, Q1 and Q2 are controlled to be in the on state. During the charging process, Q3 can be in the on state, and the interface module can directly supply power to the PMU.

[0166] like Figure 9 As shown, the terminal device can control Q24, Q25, Q26, Q27, Q28, Q29, Q30, and C5, C9, C10 and C11 to form a control circuit of a 4:1 charge pump system to control the interface module to charge the battery.

[0167] Second, when the terminal device meets the conditions for the battery to supply power to the outside, Q1 and Q2 are controlled to be in the cut-off state.

[0168] exist Figure 9 On the basis of Figure 10A and Figure 10BThe embodiment of the present application provides a schematic diagram of a group of working state changes of the power supply system to the load. Figure 10A and Figure 10B Describe the power supply control method of the power supply control module:

[0169] When the battery supplies power to the PMU, the terminal device controls the switch module of the power supply system to alternately switch between the first state and the second state as follows;

[0170] First state: control Q24, Q26, Q27 and Q30 to be turned on; Q1, Q2, Q3, Q25, Q28 and Q29 to be turned off.

[0171] like Figure 10A As shown, in the first state, the battery is connected to L1 and splits into two parallel capacitor paths connected to ground. The first path is L1-Q26-C11-Q30. The second path is L1-Q27-C10-Q24-C9-Q30. At this time, the battery voltage can be the voltage across C11 or the voltage across C9 and C10 connected in series.

[0172] Second state: control Q3, Q25, Q28, Q29 to be turned on, and Q1, Q2, Q24, Q26, Q27, and Q30 to be turned off.

[0173] like Figure 10B As shown, in the second state, the battery is connected to L1 and is also divided into two conductive paths. The first path is L1-Q28-C11-Q25-C10-Q29, and the second path is L1-Q28-C9-Q3. In this case, the battery voltage is the voltage across the series connection of C11 and C10; the output voltage to the PMU is the battery voltage after being boosted by C9.

[0174] After switching between the first state and the second state, Figure 9 The circuit can form a boost.

[0175] It should be noted that, in order to adapt to different boosting requirements, the working time of the first state and the second state can be adjusted, that is, the magnitude of the output voltage can be adjusted by adjusting the duty cycle of each switch module.

[0176] The following combination Figures 11 to 12B A power supply system of a 4:1 transformer system is described.

[0177] Figure 11 This is a schematic diagram of the power supply control system structure of another terminal device exemplarily disclosed in an embodiment of the present application.

[0178] like Figure 11As shown, the charge pump system is another 4:1 voltage transformer. The charge pump system includes a second switch module Q2, a third switch module Q3, a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a fortieth switch module Q41, a fortieth switch module Q42, a fortieth switch module Q43, a fortieth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14, and a fifteenth capacitor C15.

[0179] The interface module is connected to the first end of Q2, the power management module is connected to the first end of Q3, the second end of Q2 is connected to the second end of Q3, the first end of Q31, and the first end of Q32. The second end of Q31 is connected to the first end of Q33 and the first end of C12. The second end of Q32 is connected to the first end of Q34 and the first end of C13. The second end of Q33 is connected to the first end of Q35, the first end of Q36, and the first end of C15. The second end of Q34 is connected to the first end of Q37, the first end of Q38, and the first end of C14. The second end of Q37 is connected to the second end of C12 and the first end of Q39. The second end of Q36 is connected to the second end of C13 and the first end of Q44. The second end of Q38 is connected to the first end of Q40, the second end of Q35, and the first end of Q42, and is connected to one end of the inductive switch module as the first end of the charge pump system. The second end of Q40 is connected to the second end of C14 and the first end of Q41. The second end of Q42 is connected to the first end of Q43 and the first end of C15. The second end of Q39 , the second end of Q41 , the second end of Q43 , and the second end of Q44 are grounded.

[0180] Among them, the inductive switch module, interface module, power management module and load system can refer to Figure 2A and Figure 2B The relevant description is omitted here.

[0181] First, when the terminal device meets the battery charging conditions, Q1 and Q2 are controlled to be in the on state. During the charging process, Q3 can be in the on state, and the interface module can directly supply power to the PMU.

[0182] like Figure 11As shown, the terminal device can control Q31, Q32, Q33, Q34, Q35, Q36, Q37, Q38, Q39, Q40, Q41, Q42, Q43, and C12, C13, C14, and C15 to form a 4:1 charge pump system control circuit, controlling the interface module to charge the battery. When the battery is supplying power to the PMU, the terminal device controls the switch module of the power supply system to alternate between the first and second states as follows.

[0183] Second, when the terminal device meets the conditions for the battery to supply power to the outside, Q1 and Q2 are controlled to be in the cut-off state.

[0184] exist Figure 11 On the basis of Figure 12A and Figure 12B The embodiment of the present application provides a schematic diagram of a group of working state changes of the power supply system to the load. Figure 12A and Figure 12B Describe the power supply control method of the power supply control module:

[0185] First state: control Q3, Q32, Q33, Q36, Q38, Q39, Q41 and Q42 to be turned on; Q1, Q2, Q31, Q34, Q35, Q37, Q40, Q43 and Q44 to be turned off.

[0186] like Figure 12A As shown, in the first state, after the battery is connected to L1, two series capacitors are grounded, and one series capacitor supplies power to the PMU. The first conduction path is: L1-Q38-C14-Q41, and the battery voltage can be the voltage across L1 and C14. The second conduction path is: L1-Q42-C15-Q33-C12-Q39, and the battery voltage can be the voltage across the series connection of C15 and C12. The third conduction path is: L1-Q42-C15-Q36-C13-Q32-Q3, and supplies power to the PMU. The output voltage supplied to the PMU can be the battery voltage after being boosted by L1, C15, and C13.

[0187] Second state: control Q3, Q31, Q34, Q35, Q37, Q40, Q43 and Q44 to be turned on; Q1, Q2, Q32, Q33, Q36, Q38, Q39, Q41 and Q42 to be turned off.

[0188] like Figure 12BAs shown, in the second state, after the battery is connected to L1, the two series capacitors are grounded, and one series capacitor supplies power to the PMU. The first conduction path is: L1-Q35-C15-Q43, and the battery voltage can be the voltage across L1 and C15. The second conduction path is: L1-Q40-C14-Q34-C13-Q44, and the battery voltage can be the voltage across the series connection of L1, C14, and C13, that is, Vbattery = Vc13-Vc14. The third conduction path is: L1-Q40-C14-Q37-C12-Q31-Q3, supplying power to the PMU. The output voltage supplied to the PMU is the battery voltage after being boosted by L1, C14, and C12.

[0189] By switching between the first and second states, the battery voltage can be boosted and provided to the PMU. This process can boost the battery voltage. Furthermore, to accommodate different boost requirements, the operating time of the first and second states can be adjusted. Specifically, the output voltage can be adjusted by adjusting the duty cycle of each switching module.

[0190] It should be noted that Figures 3 to 12B Only some charge pump systems are described. There are other charge pump systems that can also use the usage scenarios of this application. They all fall within the scope of protection of this application and will not be listed one by one.

[0191] As used in the above embodiments, the term “when” may be interpreted to mean “if” or “after” or “in response to determining that” or “in response to detecting that”, depending on the context. Similarly, the phrases “upon determining that” or “if (stated condition or event) is detected” may be interpreted to mean “if determining that” or “in response to determining that” or “upon detecting (stated condition or event)” or “in response to detecting (stated condition or event)”, depending on the context.

[0192] In the above embodiments, all or part of the embodiments can be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., a floppy disk, hard disk, tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive).

[0193] Those skilled in the art will appreciate that all or part of the process steps in the above-described method embodiments can be implemented by a computer program instructing the relevant hardware. The program can be stored in a computer-readable storage medium, and when executed, the program can include the process steps in the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM or random access memory (RAM), magnetic disks, or optical disks.

Claims

1. A terminal device, characterized in that: The terminal device includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1 and a second capacitor C2; wherein, the first end of Q4 is connected to the second end of Q2 and the second end of Q3; the second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and is the first end of the charge pump system; the second end of Q6 is connected to the second end of C1 and the first end of Q7, and the second end of Q7 and the second end of C2 are grounded; the first end of Q3 is connected to the first end of C2; when the battery supplies power to the PMU, the switch module of the power supply system is connected according to the first The first state, the second state, the third state and the fourth state are switched in turn; in the first state, the Q3, the Q4 and the Q5 are in the on state; the Q1, the Q2, the Q6 and the Q7 are in the off state; in the second state, the Q5 and the Q7 are in the on state; the Q1, the Q2, the Q3, the Q4 and the Q6 are in the off state; in the third state, the Q3, the Q4 and the Q6 are in the on state; the Q1, the Q2, the Q5 and the Q7 are in the off state; in the fourth state, the Q6 and the Q7 are in the on state; the Q1, the Q2, the Q3, the Q4 and the Q5 are in the off state.

2. A terminal device, characterized in that: The terminal device includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3; the second end of C3 is connected to the first end of Q9 and the first end of Q10; the second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4; the second end of C4 is connected to the first end of Q12 and the first end of Q13; the second end of Q11 is connected to the first end of Q9 and the first end of Q10; The second end of Q10 and the second end of Q13 are connected to each other and serve as the first end of the charge pump system; the second end of Q10 and the second end of Q13 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches alternately between a first state and a second state; in the first state, Q3, Q8, Q10, Q11 and Q13 are in an on state; Q1, Q2, Q9 and Q12 are in an off state; in the second state, Q3, Q9 and Q12 are in an on state; Q1, Q2, Q8, Q10, Q11 and Q13 are in an off state.

3. A terminal device, characterized in that: The terminal device includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q14 and the first end of C5; the second end of Q14 is connected to the second end of Q15 and the first end of C6; the second end of C6 is connected to the second end of The second end of Q15 is connected to the first end of Q18, the first end of Q21 and the second end of Q23, and serves as the first end of the charge pump system. The second end of C5, the second end of Q16 and the first end of Q19 are connected to the first end of Q20. The second end of Q20 is connected to the second end of Q21 and the first end of C8. The second end of C8 is connected to the first end of Q22 and the first end of Q23. The first end of Q15 is connected to the first end of Q18, the first end of Q21 and the second end of Q23, and serves as the first end of the charge pump system. The second end and the second end of Q22 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches in turn according to the first state, the second state, the third state and the fourth state; in the first state, Q3, Q14 and Q15 are in the on state; Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22 and Q23 are in the off state; in the second state, Q3, Q14, Q15, Q16, Q18, Q19, Q21 and Q22 are in the off state. The Q1, Q2, Q17, Q20 and Q23 are in the on state; the Q1, Q2, Q17, Q20 and Q23 are in the off state; in the third state, the Q3, Q14, Q17, Q20 and Q23 are in the on state; the Q1, Q2, Q15, Q16, Q18, Q19, Q21 and Q22 are in the off state; in the fourth state, the Q3, Q22 and Q23 are in the on state; the Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19 and Q21 are in the off state.

4. A terminal device, characterized in that: The terminal device includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9; the second end of Q24 is connected to the first end of Q25 and the first end of C10; the second end of Q25 is connected to the first end of Q26 and the first end of C11; the second end of Q26 is connected to the first end of Q27 and the first end of Q28, and serves as the first end of the charge pump system; the second end of Q27 is connected to C1 0 and the first end of Q29; the second end of Q28 is connected to the first end of Q30, the second end of C9 and the second end of C11; the second end of Q29 and the second end of Q30 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state; in the first state, Q24, Q26, Q27 and Q30 are in an on state; Q1, Q2, Q3, Q25, Q28 and Q29 are in an off state; in the second state, Q3, Q25, Q28 and Q29 are in an on state; Q1, Q2, Q24, Q26, Q27 and Q30 are in an off state.

5. A terminal device, characterized in that: The terminal device includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a forty-first switch module Q41, a forty-second switch module Q42, a forty-third switch module Q43, a forty-fourth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14 and a fifteenth capacitor C15; wherein the second end of Q2 is connected to the The second end of Q3, the first end of Q31 and the first end of Q32; the second end of Q31 is connected to the first end of Q33 and the first end of C12; the second end of Q32 is connected to the first end of Q34 and the first end of C13; the second end of Q33 is connected to the first end of Q35, the first end of Q36 and the first end of C15; the second end of Q34 is connected to the first end of Q37, the first end of Q38 and the first end of C14; the second end of Q37 is connected to the second end of C12 and the first end of Q39; the second end of Q36 is connected to the second end of C13 and the first end of The first end of Q44; the second end of Q38 is connected to the first end of Q40, the second end of Q35 and the first end of Q42, and is the first end of the charge pump system; the second end of Q40 is connected to the second end of C14 and the first end of Q41; the second end of Q42 is connected to the first end of Q43 and the first end of C15; the second end of Q39, the second end of Q41, the second end of Q43 and the second end of Q44 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches alternately according to the first state and the second state; in the first state, Q3, The Q32, the Q33, the Q36, the Q38, the Q39, the Q41 and the Q42 are in the on state; the Q1, the Q2, the Q31, the Q34, the Q35, the Q37, the Q40, the Q43 and the Q44 are in the off state; in the second state, the Q3, the Q31, the Q34, the Q35, the Q37, the Q40, the Q43 and the Q44 are in the on state; the Q1, the Q2, the Q32, the Q33, the Q36, the Q38, the Q39, the Q41 and the Q42 are in the off state.

6. A power supply control system, characterized in that: The power supply control system includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1 and a second capacitor C2; wherein, the first end of Q4 is connected to the second end of Q2 and the second end of Q3; the second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and is the first end of the charge pump system; the second end of Q6 is connected to the second end of C1 and the first end of Q7, and the second end of Q7 and the second end of C2 are grounded; the first end of Q3 is connected to the first end of C2; when the battery supplies power to the PMU, the switch module of the power supply system is connected according to the first The first state, the second state, the third state and the fourth state are switched in turn; in the first state, the Q3, the Q4 and the Q5 are in the on state; the Q1, the Q2, the Q6 and the Q7 are in the off state; in the second state, the Q5 and the Q7 are in the on state; the Q1, the Q2, the Q3, the Q4 and the Q6 are in the off state; in the third state, the Q3, the Q4 and the Q6 are in the on state; the Q1, the Q2, the Q5 and the Q7 are in the off state; in the fourth state, the Q6 and the Q7 are in the on state; the Q1, the Q2, the Q3, the Q4 and the Q5 are in the off state.

7. A power supply control system, characterized in that: The power supply control system includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3; the second end of C3 is connected to the first end of Q9 and the first end of Q10; the second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4; the second end of C4 is connected to the first end of Q12 and the first end of Q13; the second end of Q11 is connected to the first end of Q9 and the first end of Q10; The second end of Q10 and the second end of Q13 are connected to each other and serve as the first end of the charge pump system; the second end of Q10 and the second end of Q13 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches alternately between a first state and a second state; in the first state, Q3, Q8, Q10, Q11 and Q13 are in an on state; Q1, Q2, Q9 and Q12 are in an off state; in the second state, Q3, Q9 and Q12 are in an on state; Q1, Q2, Q8, Q10, Q11 and Q13 are in an off state.

8. A power supply control system, characterized in that: The power supply control system includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q14 and the first end of C5; the second end of Q14 is connected to the second end of Q15 and the first end of C6; the second end of C6 is connected to the second end of The second end of Q15 is connected to the first end of Q18, the first end of Q21 and the second end of Q23, and serves as the first end of the charge pump system. The second end of C5, the second end of Q16 and the first end of Q19 are connected to the first end of Q20. The second end of Q20 is connected to the second end of Q21 and the first end of C8. The second end of C8 is connected to the first end of Q22 and the first end of Q23. The first end of Q15 is connected to the first end of Q18, the first end of Q21 and the second end of Q23, and serves as the first end of the charge pump system. The second end and the second end of Q22 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches in turn according to the first state, the second state, the third state and the fourth state; in the first state, Q3, Q14 and Q15 are in the on state; Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22 and Q23 are in the off state; in the second state, Q3, Q14, Q15, Q16, Q18, Q19, Q21 and Q22 are in the off state. The Q1, Q2, Q17, Q20 and Q23 are in the on state; the Q1, Q2, Q17, Q20 and Q23 are in the off state; in the third state, the Q3, Q14, Q17, Q20 and Q23 are in the on state; the Q1, Q2, Q15, Q16, Q18, Q19, Q21 and Q22 are in the off state; in the fourth state, the Q3, Q22 and Q23 are in the on state; the Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19 and Q21 are in the off state.

9. A power supply control system, characterized in that: The power supply control system includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9; the second end of Q24 is connected to the first end of Q25 and the first end of C10; the second end of Q25 is connected to the first end of Q26 and the first end of C11; the second end of Q26 is connected to the first end of Q27 and the first end of Q28, and serves as the first end of the charge pump system; the second end of Q27 is connected to C1 0 and the first end of Q29; the second end of Q28 is connected to the first end of Q30, the second end of C9 and the second end of C11; the second end of Q29 and the second end of Q30 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state; in the first state, Q24, Q26, Q27 and Q30 are in an on state; Q1, Q2, Q3, Q25, Q28 and Q29 are in an off state; in the second state, Q3, Q25, Q28 and Q29 are in an on state; Q1, Q2, Q24, Q26, Q27 and Q30 are in an off state.

10. A power supply control system, characterized in that: The power supply control system includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a forty-first switch module Q41, a forty-second switch module Q42, a forty-third switch module Q43, a forty-fourth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14 and a fifteenth capacitor C15; wherein the second end of Q2 is connected to the The second end of Q3, the first end of Q31 and the first end of Q32; the second end of Q31 is connected to the first end of Q33 and the first end of C12; the second end of Q32 is connected to the first end of Q34 and the first end of C13; the second end of Q33 is connected to the first end of Q35, the first end of Q36 and the first end of C15; the second end of Q34 is connected to the first end of Q37, the first end of Q38 and the first end of C14; the second end of Q37 is connected to the second end of C12 and the first end of Q39; the second end of Q36 is connected to the second end of C13 and the first end of The first end of Q44; the second end of Q38 is connected to the first end of Q40, the second end of Q35 and the first end of Q42, and is the first end of the charge pump system; the second end of Q40 is connected to the second end of C14 and the first end of Q41; the second end of Q42 is connected to the first end of Q43 and the first end of C15; the second end of Q39, the second end of Q41, the second end of Q43 and the second end of Q44 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches alternately according to the first state and the second state; in the first state, Q3, The Q32, the Q33, the Q36, the Q38, the Q39, the Q41 and the Q42 are in the on state; the Q1, the Q2, the Q31, the Q34, the Q35, the Q37, the Q40, the Q43 and the Q44 are in the off state; in the second state, the Q3, the Q31, the Q34, the Q35, the Q37, the Q40, the Q43 and the Q44 are in the on state; the Q1, the Q2, the Q32, the Q33, the Q36, the Q38, the Q39, the Q41 and the Q42 are in the off state.

11. A power supply control method, characterized in that: The method is applied to a terminal device, which includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a fourth switch module Q4, a fifth switch module Q5, a sixth switch module Q6, a seventh switch module Q7, a first capacitor C1 and a second capacitor C2; wherein, the first end of Q4 is connected to the second end of Q2 and the second end of Q3; the second end of Q4 is connected to the first end of Q5 and the first end of C1; the second end of Q5 is connected to the first end of Q6 and is the first end of the charge pump system; the second end of Q6 is connected to the second end of C1 and the first end of Q7, and the second end of Q7 and the second end of C2 are grounded; the first end of Q3 is connected to the first end of C2; when the battery supplies power to the PMU, the switch module of the power supply system is connected according to the first The first state, the second state, the third state and the fourth state are switched in turn; in the first state, the Q3, the Q4 and the Q5 are in the on state; the Q1, the Q2, the Q6 and the Q7 are in the off state; in the second state, the Q5 and the Q7 are in the on state; the Q1, the Q2, the Q3, the Q4 and the Q6 are in the off state; in the third state, the Q3, the Q4 and the Q6 are in the on state; the Q1, the Q2, the Q5 and the Q7 are in the off state; in the fourth state, the Q6 and the Q7 are in the on state; the Q1, the Q2, the Q3, the Q4 and the Q5 are in the off state.

12. A power supply control method, characterized in that: The method is applied to a terminal device, which includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes an eighth switch module Q8, a ninth switch module Q9, a tenth switch module Q10, an eleventh switch module Q11, a twelfth switch module Q12, a thirteenth switch module Q13, a third capacitor C3, and a fourth capacitor C4; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q8, and the first end of C3; the second end of C3 is connected to the first end of Q9 and the first end of Q10; the second end of Q8 is connected to the second end of Q9, the first end of Q11, and the first end of C4; the second end of C4 is connected to the first end of Q12 and the first end of Q13; the second end of Q11 is connected to the first end of Q9 and the first end of Q10; The second end of Q10 and the second end of Q13 are connected to each other and serve as the first end of the charge pump system; the second end of Q10 and the second end of Q13 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches alternately between a first state and a second state; in the first state, Q3, Q8, Q10, Q11 and Q13 are in an on state; Q1, Q2, Q9 and Q12 are in an off state; in the second state, Q3, Q9 and Q12 are in an on state; Q1, Q2, Q8, Q10, Q11 and Q13 are in an off state.

13. A power supply control method, characterized in that: The method is applied to a terminal device, which includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a fourteenth switch module Q14, a fifteenth switch module Q15, a sixteenth switch module Q16, a seventeenth switch module Q17, an eighteenth switch module Q18, a nineteenth switch module Q19, a twentieth switch module Q20, a twenty-first switch module Q21, a twenty-second switch module Q22, a twenty-third switch module Q23, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q14 and the first end of C5; the second end of Q14 is connected to the second end of Q15 and the first end of C6; the second end of C6 is connected to the second end of The second end of Q15 is connected to the first end of Q18, the first end of Q21 and the second end of Q23, and serves as the first end of the charge pump system. The second end of C5, the second end of Q16 and the first end of Q19 are connected to the first end of Q20. The second end of Q20 is connected to the second end of Q21 and the first end of C8. The second end of C8 is connected to the first end of Q22 and the first end of Q23. The first end of Q15 is connected to the first end of Q18, the first end of Q21 and the second end of Q23, and serves as the first end of the charge pump system. The second end and the second end of Q22 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches in turn according to the first state, the second state, the third state and the fourth state; in the first state, Q3, Q14 and Q15 are in the on state; Q1, Q2, Q16, Q17, Q18, Q19, Q20, Q21, Q22 and Q23 are in the off state; in the second state, Q3, Q14, Q15, Q16, Q18, Q19, Q21 and Q22 are in the off state. The Q1, Q2, Q17, Q20 and Q23 are in the on state; the Q1, Q2, Q17, Q20 and Q23 are in the off state; in the third state, the Q3, Q14, Q17, Q20 and Q23 are in the on state; the Q1, Q2, Q15, Q16, Q18, Q19, Q21 and Q22 are in the off state; in the fourth state, the Q3, Q22 and Q23 are in the on state; the Q1, Q2, Q14, Q15, Q16, Q17, Q18, Q19 and Q21 are in the off state.

14. A power supply control method, characterized in that: The method is applied to a terminal device, which includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a twenty-fourth switch module Q24, a twenty-fifth switch module Q25, a twenty-sixth switch module Q26, a twenty-seventh switch module Q27, a twenty-eighth switch module Q28, a twenty-ninth switch module Q29, a thirtieth switch module Q30, a ninth capacitor C9, a tenth capacitor C10, and an eleventh capacitor C11; wherein the second end of Q2 is connected to the second end of Q3, the first end of Q24, and the first end of C9; the second end of Q24 is connected to the first end of Q25 and the first end of C10; the second end of Q25 is connected to the first end of Q26 and the first end of C11; the second end of Q26 is connected to the first end of Q27 and the first end of Q28, and serves as the first end of the charge pump system; the second end of Q27 is connected to C1 0 and the first end of Q29; the second end of Q28 is connected to the first end of Q30, the second end of C9 and the second end of C11; the second end of Q29 and the second end of Q30 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system alternately switches between a first state and a second state; in the first state, Q24, Q26, Q27 and Q30 are in an on state; Q1, Q2, Q3, Q25, Q28 and Q29 are in an off state; in the second state, Q3, Q25, Q28 and Q29 are in an on state; Q1, Q2, Q24, Q26, Q27 and Q30 are in an off state.

15. A power supply control method, characterized in that: The method is applied to a terminal device, which includes an interface module, a power management unit (PMU), a battery, a load system, and a power supply system; wherein: The power supply system includes a charge pump system and an inductor switch module, wherein a first end of the inductor switch module is connected to a first end of the charge pump system, and a second end of the inductor switch module is connected to the battery; a second end of the charge pump system is connected to the interface module, a third end of the charge pump system is connected to one end of the PMU, and the other end of the PMU is connected to the load system; the inductor switch module includes a first switch module Q1 and a first inductor connected in parallel, wherein a first end of the inductor switch module is connected to one end of the parallel connection of Q1 and the first inductor, and a second end of the inductor switch module is connected to the other end of the parallel connection of Q1 and the first inductor; the charge pump system includes a second switch module Q2, a third switch module Q3, and a transformer; a first end of Q2 is connected to the second end of the charge pump system, and a first end of Q3 is connected to the third end of the charge pump system; a second end of Q2 is connected to the second end of Q3 and the first end of the transformer, and a second end of the transformer is connected to the first end of the charge pump system; When the battery is charged through the interface module, Q1 is in an on state, and the charge pump system steps down the input voltage of the interface module; when the battery supplies power to the PMU through the power supply system, Q1 is in an off state, and the power supply system steps up the battery voltage. The transformer includes a thirty-first switch module Q31, a thirty-second switch module Q32, a thirty-third switch module Q33, a thirty-fourth switch module Q34, a thirty-fifth switch module Q35, a thirty-sixth switch module Q36, a thirty-seventh switch module Q37, a thirty-eighth switch module Q38, a thirty-ninth switch module Q39, a fortieth switch module Q40, a forty-first switch module Q41, a forty-second switch module Q42, a forty-third switch module Q43, a forty-fourth switch module Q44, a twelfth capacitor C12, a thirteenth capacitor C13, a fourteenth capacitor C14 and a fifteenth capacitor C15; wherein the second end of Q2 is connected to the The second end of Q3, the first end of Q31 and the first end of Q32; the second end of Q31 is connected to the first end of Q33 and the first end of C12; the second end of Q32 is connected to the first end of Q34 and the first end of C13; the second end of Q33 is connected to the first end of Q35, the first end of Q36 and the first end of C15; the second end of Q34 is connected to the first end of Q37, the first end of Q38 and the first end of C14; the second end of Q37 is connected to the second end of C12 and the first end of Q39; the second end of Q36 is connected to the second end of C13 and the first end of The first end of Q44; the second end of Q38 is connected to the first end of Q40, the second end of Q35 and the first end of Q42, and is the first end of the charge pump system; the second end of Q40 is connected to the second end of C14 and the first end of Q41; the second end of Q42 is connected to the first end of Q43 and the first end of C15; the second end of Q39, the second end of Q41, the second end of Q43 and the second end of Q44 are grounded; when the battery supplies power to the PMU, the switch module of the power supply system switches alternately according to the first state and the second state; in the first state, Q3, The Q32, the Q33, the Q36, the Q38, the Q39, the Q41 and the Q42 are in the on state; the Q1, the Q2, the Q31, the Q34, the Q35, the Q37, the Q40, the Q43 and the Q44 are in the off state; in the second state, the Q3, the Q31, the Q34, the Q35, the Q37, the Q40, the Q43 and the Q44 are in the on state; the Q1, the Q2, the Q32, the Q33, the Q36, the Q38, the Q39, the Q41 and the Q42 are in the off state.

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