Regulating circuit and electronic equipment

Abstract

The embodiment of the invention discloses a regulating circuit. The regulating circuit comprises a power supply, a load, a first charge pump and a second charge pump, the input end of the first charge pump and the input end of the second charge pump are both connected with the power supply, and the output end of the first charge pump and the output end of the second charge pump are both connected with the load; under the condition that any one of the first charge pump and the second charge pump works, the any one charge pump is used for adjusting the input voltage of the power supply according to a first proportion to obtain a first load voltage; under the condition that the first charge pump and the second charge pump work at the same time, the first charge pump and the second charge pump are used for adjusting the input voltage of the power supply according to a second proportion to obtain a second load voltage, and the second proportion is larger than the first proportion.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a regulating circuit and an electronic device. Background Art

[0002] Currently, due to the limitation of device operating voltage, the current battery voltage can only be discharged to 3.3V, and the effective remaining capacity of the battery between 3.0V and 3.3V cannot be fully utilized.

[0003] The current technical solution is to increase the voltage from 3.0V to 3.3V by adding a boost-bypass circuit to ensure the normal operation of the back-end devices. Since there are a large number of capacitors and inductors in the boost-bypass circuit, the power consumption of the boost-bypass circuit is relatively large, and the efficiency of using the boost-bypass circuit to boost the voltage is not high, resulting in the remaining capacity of the low-power battery cannot be fully utilized. Summary of the invention

[0004] Embodiments of the present application provide a regulating circuit and an electronic device.

[0005] The technical solution of the embodiment of the present application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a regulation circuit, the regulation circuit comprising: a power supply, a load, a first charge pump and a second charge pump;

[0007] An input end of the first charge pump and an input end of the second charge pump are both connected to the power supply, and an output end of the first charge pump and an output end of the second charge pump are both connected to the load;

[0008] When any one of the first charge pump and the second charge pump is in operation, the any one of the charge pumps is used to adjust the input voltage of the power supply at a first ratio to obtain a first load voltage, and provide the first load voltage to the load; the first ratio is a ratio between the input voltage and the first load voltage;

[0009] When the first charge pump and the second charge pump operate simultaneously, the first charge pump and the second charge pump are used to adjust the input voltage of the power supply at a second ratio to obtain a second load voltage and provide the second load voltage to the load; the second ratio is the ratio between the input voltage and the second load voltage, wherein the second ratio is greater than the first ratio.

[0010] In a second aspect, an embodiment of the present application further provides an electronic device, the electronic device comprising: a regulating circuit; the regulating circuit comprising: a power supply, a load, a first charge pump and a second charge pump;

[0011] An input end of the first charge pump and an input end of the second charge pump are both connected to the power supply, and an output end of the first charge pump and an output end of the second charge pump are both connected to the load;

[0012] When any one of the first charge pump and the second charge pump is in operation, the any one of the charge pumps is used to adjust the input voltage of the power supply at a first ratio to obtain a first load voltage, and provide the first load voltage to the load; the first ratio is a ratio between the input voltage and the first load voltage;

[0013] When the first charge pump and the second charge pump operate simultaneously, the first charge pump and the second charge pump are used to adjust the input voltage of the power supply at a second ratio to obtain a second load voltage and provide the second load voltage to the load; the second ratio is the ratio between the input voltage and the second load voltage, wherein the second ratio is greater than the first ratio.

[0014] The regulation circuit provided in the embodiment of the present application includes two charge pumps, a first charge pump and a second charge pump, wherein the input end of each charge pump is connected to the power supply, and the output end is connected to the load. When any one of the charge pumps is working, any one of the charge pumps regulates the input voltage of the power supply at a first ratio to obtain a first load voltage; when the two charge pumps are working at the same time, the two charge pumps regulate the input voltage of the power supply at a second ratio to obtain a second load voltage, wherein the second ratio is greater than the first ratio. By controlling the number of charge pumps working in the circuit, the input voltage can be regulated at different ratios, so that when the input voltage is relatively low, the regulation ratio can be increased to increase the load voltage. In this way, the boost effect is achieved by controlling the number of charge pumps working instead of the Boost-Bypas circuit, thereby avoiding the energy loss generated when the Boost-Bypas circuit is used, thereby improving the utilization rate of the remaining capacity when the power supply voltage is low, and further increasing the battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a battery discharge curve provided in an embodiment of the present application;

[0016] Figure 2 A regulating circuit provided in an embodiment of the present application Figure 1 ;

[0017] Figure 3 A regulating circuit provided in an embodiment of the present application Figure 2 ;

[0018] Figure 4 A regulating circuit provided in an embodiment of the present application Figure 3 ;

[0019] Figure 5 A regulating circuit provided in an embodiment of the present application Figure 4 ;

[0020] Fig. 6A A circuit structure diagram for charging a first capacitor provided in an embodiment of the present application;

[0021] Figure 6B A circuit structure diagram for discharging a first capacitor provided in an embodiment of the present application;

[0022] Fig. 7A A circuit structure diagram for charging a second capacitor provided in an embodiment of the present application;

[0023] Figure 7B A circuit structure diagram for discharging a second capacitor provided in an embodiment of the present application;

[0024] Fig. 8A A circuit structure diagram for simultaneously charging a first capacitor and a second capacitor provided in an embodiment of the present application;

[0025] Figure 8B A circuit structure diagram for simultaneously discharging a first capacitor and a second capacitor provided in an embodiment of the present application;

[0026] Fig. 9 A schematic diagram of a dual-cell battery providing power to a system main power supply according to an embodiment of the present application;

[0027] Fig.10 A comparison diagram of two regulating circuits provided in an embodiment of the present application;

[0028] Fig.11 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

[0031] In addition, in the embodiments of the present application, "first", "second", etc. are used to distinguish similar objects and are not necessarily used for a specific order or sequence.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0033] A charge pump (CP) is a DC converter that uses capacitors to increase or decrease voltage. This type of converter usually takes up a small area but has high efficiency. Charge pumps are often used in the backlight and optical modules of thin-film transistor liquid crystal displays (TFT-LCDs), and can also be used to drive the upper transistor in the buck circuit.

[0034] At present, due to the limitation of device working voltage, the current battery voltage can only be discharged to 3.3V, and the effective remaining capacity of the battery between 3.0V and 3.3V cannot be fully utilized. Figure 1 The battery discharge curve shown in the figure shows that the battery discharge capacity depth between 3.0 and 3.3V is almost 100%, and the remaining capacity of the battery between 3.0 and 3.3V cannot be fully utilized. Figure 2 As shown, Figure 2 It is a schematic diagram of the structure of a dual-cell battery in an electronic device providing voltage to the electronic device. Figure 2 2S is a dual-cell battery, V2X is the input voltage, PGND indicates grounding, CFxP and CFxN are pin names, V1X is the load voltage, VBATT_PWR is the power supply for electronic devices, VBAT0 is the voltage across the power supply, VPH_PWR is the input voltage of the Boost-Bypas boost circuit, VPH-BOOST-PWR is the output voltage of the Boost-Bypas boost circuit, i.e., the load voltage, SW, SYS, BAT, PMID are management names, and Buck charger is a buck charger. Most electronic devices use dual-cell batteries, which need to be stepped down by a charge pump before they can become the main power source of the electronic device. When the dual-cell battery is at a low voltage, the voltage after the charge pump step-down cannot drive the electronic device, and a boost-bypass circuit needs to be added to boost the voltage before the electronic device can work. After the charge pump step-down, the power supply voltage of the electronic device is obtained, and the power supply voltage of the electronic device is boosted by the boost-pass circuit to enable the electronic device to work normally.

[0035] However, there are a large number of capacitors and inductors in the Boost-Bypas circuit, which consumes a large amount of power. Therefore, the efficiency of boosting the voltage using the boost-pass circuit is not high, which results in the inability to fully utilize the remaining capacity of the low-power battery. In addition, the Boost-Bypas circuit requires a large number of components (such as inductors and capacitors), and the inductors cannot be integrated on the chip. Therefore, the area occupied by the Boost-Bypas circuit is relatively large, which will increase the cost of the power supply circuit and the area of ​​the electronic equipment.

[0036] In order to solve the problems existing in the related art, the embodiment of the present application provides a regulation circuit, including two charge pumps, a first charge pump and a second charge pump, wherein the input end of each charge pump is connected to a power supply, and the output end is connected to a load, and when any one of the charge pumps is working, any one of the charge pumps regulates the input voltage of the power supply at a first ratio to obtain a first load voltage; when the two charge pumps are working at the same time, the two charge pumps regulate the input voltage of the power supply at a second ratio to obtain a second load voltage, wherein the second ratio is greater than the first ratio, and by controlling the number of charge pumps working in the circuit, the input voltage is regulated at different ratios, so that when the input voltage is relatively low, the regulation ratio can be increased to increase the load voltage, and thus, the boost effect is achieved by controlling the number of charge pumps working instead of the Boost-Bypas circuit, thereby avoiding the energy loss generated when the Boost-Bypas circuit is used, thereby improving the utilization rate of the remaining capacity when the power supply voltage is low, and further increasing the battery life.

[0037] The regulating circuit provided in the embodiment of the present application is applied to the electronic device provided in the embodiment of the present application. The electronic device provided in the embodiment of the present application may include a mobile phone, a mobile power supply, an electric car, a laptop computer, a drone, a tablet computer, an e-book, an electronic cigarette, a wearable device (such as a watch, a bracelet, smart glasses, etc.), a robot (such as a sweeping robot, a floor scrubber, etc.), a wireless headset, a Bluetooth speaker, a radio mouse, etc., and the embodiment of the present application does not limit this.

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0039] refer to Figure 3 As shown, Figure 3 A regulating circuit is provided in an embodiment of the present application, and the regulating circuit includes: a power supply 11, a load 12, a first charge pump 13 and a second charge pump 14;

[0040] An input end of the first charge pump 13 and an input end of the second charge pump 14 are both connected to the power supply, and an output end of the first charge pump 13 and an output end of the second charge pump 14 are both connected to the load;

[0041] When any one of the first charge pump 13 and the second charge pump 14 is working, the any one of the charge pumps is used to adjust the input voltage of the power supply at a first ratio to obtain a first load voltage and provide the first load voltage to the load; the first ratio is a ratio between the input voltage and the first load voltage;

[0042] When the first charge pump 13 and the second charge pump 14 work simultaneously, the first charge pump 13 and the second charge pump 14 are used to adjust the input voltage of the power supply at a second ratio to obtain a second load voltage and provide the second load voltage to the load; the second ratio is the ratio between the input voltage and the second load voltage, wherein the second ratio is greater than the first ratio.

[0043] In an embodiment of the present application, the input voltage may be higher than the first load voltage and the second load voltage, the first load voltage may be higher than the second load voltage, or lower than the first load voltage. The embodiment of the present application does not limit the size of the first load voltage and the second load voltage.

[0044] In an embodiment of the present application, a power supply is used to provide an input voltage to the first charge pump and the second charge pump. The power supply is a device that converts other forms of energy into electrical energy, such as a single-cell battery, a dual-cell battery, a generator, and other devices that generate electrical energy. The embodiment of the present application does not impose any restrictions on this.

[0045] In the embodiment of the present application, the charge pump can be used to adjust the input voltage of the power supply, output the load voltage, and provide the load voltage to the load to drive the load to work.

[0046] In the embodiment of the present application, the load is a device that converts electrical energy into other forms of energy. The load can be a battery, processor, display screen, or other device that requires electrical energy of an electronic device, and the embodiment of the present application does not limit this.

[0047] In an embodiment of the present application, a regulation circuit includes two charge pumps, a first charge pump and a second charge pump, wherein the input end of each charge pump is connected to a power supply, and the output end is connected to a load. When any one of the charge pumps is working, any one of the charge pumps regulates the input voltage of the power supply at a first ratio to obtain a first load voltage; when the two charge pumps are working at the same time, the two charge pumps regulate the input voltage of the power supply at a second ratio to obtain a second load voltage, wherein the second ratio is greater than the first ratio. By controlling the number of charge pumps working in the circuit, the input voltage can be regulated at different ratios, so that when the input voltage is relatively low, the regulation ratio can be increased to increase the load voltage. In this way, the boost effect is achieved by controlling the number of charge pumps working instead of the Boost-Bypas circuit, thereby avoiding the energy loss generated when the Boost-Bypas circuit is used, thereby improving the utilization rate of the remaining capacity when the power supply voltage is low, and further increasing the battery life.

[0048] In an embodiment of the present application, a first control signal is received, where the first control signal is sent by the processor to the regulating circuit when the processor detects that the input voltage is greater than or equal to the minimum voltage;

[0049] In response to the first control signal, any one of the first charge pump and the second charge pump is operated.

[0050] In an embodiment of the present application, the first control signal is a signal sent by the processor for controlling the regulating circuit, wherein the first control signal can be a clock signal or a pulse signal. The embodiment of the present application does not limit the form of the first control signal.

[0051] In an embodiment of the present application, a first control signal sent by a processor is used to control the operation of the first charge pump or the second charge pump. Here, the first control signal can use a bit number 1 to control the operation of the first charge pump or the second charge pump, and a bit number 0 to control the first charge pump or the second charge pump not to work. For example, if the first control signal is 10, it means that the first charge pump is controlled to work and the second charge pump is not to work; if the first control signal is 01, it means that the first charge pump is controlled not to work and the second charge pump is to work. Conversely, the first charge pump or the second charge pump can be controlled to work by a bit number 0, and the first charge pump or the second charge pump can be controlled not to work by a bit number 1. The embodiment of the present application does not impose any restrictions on this.

[0052] In the embodiment of the present application, the minimum voltage refers to the minimum input voltage of the power supply. The first load voltage obtained after the minimum input voltage of the power supply is adjusted by any charge pump is the minimum load voltage that can ensure that the load maintains normal operation. For example, when the load is a mobile phone battery, the mobile phone battery requires a 3.3V voltage to drive the mobile phone to work. When the first load voltage is lower than 3.3V, the mobile phone cannot work.

[0053] In the embodiment of the present application, when the processor detects that the input voltage of the power supply is greater than or equal to the minimum voltage, the processor sends a first control signal to the regulating circuit to control the first charge pump or the second charge pump to make any one of the first charge pump and the second charge pump work. By making any one of the charge pumps work, any one of the charge pumps can adjust the input voltage of the power supply at a first ratio to obtain a first load voltage.

[0054] In an embodiment of the present application, when the input voltage of the power supply is greater than or equal to the minimum voltage, only one charge pump needs to be controlled to work, and the obtained first load voltage is used for the load to work. In this way, only one charge pump is used to work, which reduces energy consumption, saves power, and increases battery life while ensuring the normal operation of the load.

[0055] In an embodiment of the present application, a second control signal is received, where the second control signal is sent by the processor to the regulating circuit when the processor detects that the input voltage is less than the minimum voltage;

[0056] In response to the second control signal, the first charge pump and the second charge pump are operated simultaneously.

[0057] In an embodiment of the present application, the second control signal is a signal sent by the processor for controlling the regulating circuit, wherein the form of the second control signal may be the same as that of the first control signal, which will not be elaborated herein.

[0058] The second control signal sent by the processor is used to control the first charge pump and the second charge pump to work simultaneously. Here, the second control signal can use the bit number 1 to control the first charge pump or the second charge pump to work. For example, if the first control signal is 11, it means controlling the first charge pump to work and the second charge pump to work; conversely, the bit number 0 can be used to control the first charge pump or the second charge pump to work, and the embodiment of the present application does not limit this.

[0059] In the embodiment of the present application, the minimum voltage refers to the minimum input voltage of the power supply. The first load voltage obtained after the minimum input voltage of the power supply is adjusted by any charge pump is the minimum load voltage that can ensure that the load maintains normal operation. When the input voltage of the power supply is less than the minimum voltage, the first load voltage obtained after a charge pump is adjusted at a first ratio is insufficient to support the normal operation of the load. For example, when the load is a mobile phone battery, the mobile phone battery requires a 3.3V voltage to drive the mobile phone to work. When the first load voltage is 3.0V, the mobile phone cannot work.

[0060] Therefore, when the input voltage of the power supply is lower than the minimum voltage, the first load voltage obtained after any charge pump is adjusted at the first ratio cannot drive the load to work. At this time, the first charge pump and the second charge pump are controlled to work simultaneously, so that the first charge pump and the second charge pump adjust the input voltage at the second ratio to obtain the second load voltage, thereby driving the load to work normally.

[0061] In an embodiment of the present application, when the input voltage of the power supply is less than the minimum voltage, the processor sends a second control signal to control the first charge pump and the second charge pump to work simultaneously, so that the first charge pump and the second charge pump adjust the input voltage at a second ratio to obtain a second load voltage, and provide the second load voltage to the load to ensure that the load works normally. In this way, when the input voltage is less than the low voltage, by controlling the first charge pump and the second charge pump to work simultaneously, the second load voltage obtained after the input voltage is adjusted can still keep the load working normally, avoiding the addition of an additional Boost-Bypas boost circuit and generating a large amount of energy loss, thereby improving the utilization rate of the remaining capacity when the power supply voltage is low, and further increasing the battery life.

[0062] refer to Figure 4 As shown, Figure 4 A regulation circuit is provided in an embodiment of the present application, wherein the first charge pump 13 includes: a first type switch 131, a second type switch 132 and a first capacitor 133; the first type switch 131 and the second type switch 132 are connected in series in sequence, a first end of the first type switch 131 is connected to the power supply 11, a second end of the second type switch 133 is grounded, the load 12 is connected to a common end of the first type switch 132 and the second type switch 133, one end of the first capacitor 133 is connected to the first type switch 131, and the other end of the first capacitor 133 is connected to the second type switch 132;

[0063] The first type switch 131 is used to charge the first capacitor 133 when it is turned on; the second type switch 132 is used to discharge the first capacitor when it is turned on;

[0064] The second charge pump 14 includes: a third type switch 141, a fourth type switch 142 and a second capacitor 143;

[0065] The third type switch 141 and the fourth type switch 142 are connected in series in sequence, a first end of the third type switch 141 is connected to the power source 11, a second end of the fourth type switch 142 is grounded, the load 12 is connected to a common end of the third type switch and the fourth type switch 15, one end of the second capacitor 143 is connected to the third switch, and the other end of the second capacitor 143 is connected to the fourth switch 142;

[0066] The third type switch 141 is used to charge the second capacitor 143 when it is turned on; the fourth type switch 142 is used to discharge the second capacitor 143 when it is turned on;

[0067] The first charge pump 13 and the second charge pump 14 are connected via a fifth type switch;

[0068] Among them, the second end of the first capacitor 133 is connected to the first end of the fifth type switch 15, and the second end of the fifth type switch 15 is connected to the first end of the second capacitor 143; the fifth type switch 15 is used to discharge the first capacitor and the second capacitor simultaneously when it is turned on.

[0069] In the embodiment of the present application, the switches in each of the first type of switch, the second type of switch, the third type of switch, the fourth type of switch, and the fifth type of switch have the same function, wherein when the first type of switch is turned on, the capacitor in the first charge pump is charged, and when the second type of switch is turned on, the capacitor in the first charge pump is discharged; when the third type of switch is turned on, the capacitor in the second charge pump is charged, and when the fourth type of switch is turned on, the capacitor in the second charge pump is discharged. The embodiment of the present application does not limit the number of switches in each type of switch.

[0070] In the embodiment of the present application, the first end of the first type of switch is connected to the power supply, the first type of switch and the second type of switch are connected in series in sequence, the second end of the second type of switch is grounded, the load is connected to the common end of the first type of switch and the second type of switch, one end of the first capacitor is connected to the first type of switch, and the other end of the first capacitor is connected to the second type of switch. The first type of switch is used to charge the first capacitor when the first type of switch is turned on, and the second type of switch is used to discharge the first capacitor when the second switch is turned on.

[0071] In an embodiment of the present application, a first end of the third type of switch is connected to a power supply, the third type of switch and the fourth type of switch are connected in series in sequence, a second end of the third type of switch is grounded, a load is connected to a common end of the third type of switch and the fourth type of switch, one end of the second capacitor is connected to the third type of switch, and the other end of the second capacitor is connected to the fourth type of switch, wherein the third type of switch is used to charge the second capacitor when the third type of switch is turned on, and the fourth type of switch is used to discharge the second capacitor when the fourth type of switch is turned on.

[0072] The first charge pump is connected to the second charge pump through a fifth type switch; wherein the second end of the first capacitor is connected to the first end of the fifth type switch, and the second end of the fifth type switch is connected to the first end of the second capacitor; the fifth type switch is used to discharge the first capacitor and the second capacitor simultaneously when it is turned on.

[0073] In the embodiment of the present application, the regulating circuit includes a first charge pump, a second charge pump, and a fifth type of switch. The first charge pump includes a first type of switch, a second type of switch and a first capacitor, and the second charge pump includes a third type of switch, a fourth type of switch and a second capacitor. According to the input voltage of the power supply, the corresponding type of switch is turned on to achieve a rapid conversion between the regulating circuit regulating the input voltage at a first ratio and regulating the input voltage at a second ratio. In this way, when the input voltage of the power supply is very low, the regulated voltage can still drive the load to work, thereby increasing the remaining capacity of the power supply at low power.

[0074] In the embodiment of the present application, the regulating circuit is configured to disconnect the third type switch, the fourth type switch and the fifth type switch to control the second charge pump to not work; and alternately turn on the first type switch and the second type switch to enable the first charge pump to regulate the input voltage at a first ratio to obtain the first load voltage;

[0075] Alternatively, the regulation circuit is configured to disconnect the first type of switch, the second type of switch and the fifth type of switch to control the first charge pump to not work; and alternately turn on the third type of switch and the fourth type of switch to enable the second charge pump to regulate the input voltage at a first ratio to obtain the first load voltage.

[0076] In the embodiment of the present application, alternating conduction means that two types of switches in the charge pump are turned on in turn in different time periods, and the time of turning on the two types of switches is continuous. For example, in the first time period, the first type of switch is turned on, in the second time period, the second type of switch is turned on, in the third time period, the first type of switch is turned on again, and in the fourth type of switch, the second type of switch is turned on again, and the first switch is turned on in turn in turn, wherein the first time period, the second time period, the third time period, and the fourth time period are continuous time periods, and the duration of each time period is the same. The embodiment of the present application does not limit the duration.

[0077] In an embodiment of the present application, when the input voltage of the power supply is greater than or equal to the minimum voltage, the regulation circuit is configured to disconnect the third type of switch, the fourth type of switch and the fifth type of switch, control the second charge pump not to work, and alternately turn on the first switch and the second switch, so that only the first charge pump is working in the regulation circuit, and the first charge pump regulates the input voltage at a first ratio to obtain a first load voltage.

[0078] In another embodiment of the present application, when the input voltage of the power supply is greater than or equal to the minimum voltage, the regulation circuit is configured to disconnect the first type of switch, the second type of switch and the fifth type of switch, control the first type of charge pump to not work, and turn on the third type of switch and the fourth type of switch, so that only the second charge pump in the regulation circuit is working, and the second charge pump adjusts the input voltage at a first ratio to obtain a first load voltage.

[0079] In the embodiment of the present application, when the input voltage is greater than or equal to the minimum voltage, by disconnecting the switch in one charge pump and turning on the switch in another charge pump, only one charge pump in the regulation circuit works, and the two types of switches in any charge pump are turned on alternately, so that any charge pump adjusts the input voltage at a first ratio. In this way, it is only necessary to continuously charge and discharge the capacitor in one charge pump to achieve the first load voltage after the input voltage of the power supply is adjusted at the first ratio. Under the condition of ensuring the normal operation of the load, only one charge pump is used to work, which can reduce energy consumption, save power, and increase battery life.

[0080] In an embodiment of the present application, the regulation circuit is also configured to alternately turn on the first group of switches and the second group of switches, control the first charge pump and the second charge pump to work simultaneously, so that the first charge pump and the second charge pump adjust the input voltage at a second ratio to obtain the second load voltage; the first group of switches includes: the first type of switches and the third type of switches; the second group of switches includes: some switches in the second type of switches, some switches in the fourth type of switches and the fifth type of switches.

[0081] In an embodiment of the present application, the first group of switches includes some switches in the first charge pump and some switches in the second charge pump, and the second switch includes some switches in the first charge pump and some switches in the second charge pump. Specifically, the first group of switches includes first-category switches and third-category switches, and the second group of switches includes some switches in the second switch, some switches in the fourth switch, and fifth-category switches.

[0082] In the embodiment of the present application, when the voltage of the power supply is less than the minimum voltage, the first load voltage obtained by adjusting the input voltage with the first ratio cannot drive the load to work. Therefore, the first group of switches and the second group of switches are alternately turned on to make the first charge pump and the second charge pump work at the same time, so that the first charge pump and the second charge pump adjust the input voltage with the second ratio, and the second ratio is greater than the first ratio. In this way, when the voltage is less than the minimum voltage, the second load voltage obtained by adjusting the second ratio is greater than the first load voltage obtained by adjusting the first ratio, and can drive the load to work. Even if the input voltage is very small, the second load voltage obtained by adjusting the second ratio can meet the voltage requirement of the normal operation of the load, and at the same time avoid adding an additional Boost-Bypas boost circuit, which generates a large amount of energy loss, thereby improving the utilization rate of the remaining capacity when the power supply is low voltage, and further increasing the battery life. The inductance in the Boost-Bypas boost circuit will increase the cost and circuit area. Therefore, in the absence of inductance, the performance under low voltage can be extended, the endurance pressure can be relieved, and the competitiveness of thinness can be improved: the circuit cost and area can be reduced.

[0083] In the examples of this application, refer to Figure 5 As shown, Figure 5 In a regulation circuit provided in an embodiment of the present application, the first type of switches include a first switch Q1 and a second switch Q2; the second type of switches include a third switch Q3 and a fourth switch Q4;

[0084] A first end of the first switch Q1 is connected to the power supply, the first switch Q1, the third switch Q3, the second switch Q2 and the fourth switch Q4 are connected in series in sequence, a second end of the fourth switch Q4 is grounded, the load is connected to a common end of the third switch Q3 and the second switch Q2, one end of the first capacitor is connected to a first end of the third switch Q3, and the other end of the first capacitor is connected to a second end of the second switch Q2;

[0085] The third type of switches include a fifth switch Q5 and a sixth switch Q6, and the fourth type of switches include a seventh switch Q7 and an eighth switch Q8;

[0086] A first end of the fifth switch Q5 is connected to the power supply, the fifth switch Q5, the seventh switch Q7, the sixth switch Q6 and the eighth switch Q8 are connected in series in sequence, a second end of the eighth switch Q8 is grounded, the load is connected to a common end of the seventh switch Q7 and the sixth switch Q6, one end of the second capacitor is connected to a first end of the seventh switch Q7, and the other end of the second capacitor is connected to a second end of the sixth switch Q6;

[0087] The fifth type of switches include a ninth switch Q9;

[0088] The first charge pump and the second charge pump are connected via a ninth switch Q9;

[0089] The first end of the first capacitor is connected to the first end of the ninth switch Q9, and the second end of the ninth switch Q9 is connected to the second end of the second capacitor.

[0090] In the embodiment of the present application, each of the first type of switch, the second type of switch, the third type of switch, and the fourth type of switch includes two switches. Figure 5The switch in is a Metal Oxide Semiconductor Field Effect Transistor (MOS), the first end of the first switch is connected to the power supply 2S, VBATO is the voltage of the power supply, V2X is the input voltage, VBATT_PWR is the load voltage, the first switch, the second switch, the third switch, and the fourth switch are connected in series in sequence, the second end of the fourth switch is grounded, the load is connected to the common end of the third switch and the second switch, one end of the first capacitor is connected to the first end of the third switch, and the other end of the first capacitor is connected to the second end of the second switch. The first end of the fifth switch is connected to the power supply, the fifth switch, the seventh switch, the sixth switch and the eighth switch are connected in series in sequence, the second end of the eighth switch is grounded, the load is connected to the common end of the seventh switch and the sixth switch, one end of the second capacitor is connected to the first end of the seventh switch, and the other end of the first capacitor is connected to the second end of the sixth switch. The second end of the first capacitor is connected to the first end of the ninth switch, and the second end of the ninth switch is connected to the first end of the second capacitor.

[0091] In an embodiment of the present application, the regulation circuit includes a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, an eighth switch, and a ninth switch. According to the input voltage of the power supply, the corresponding switch is turned on to achieve rapid conversion between the regulation circuit regulating the input voltage at a first ratio and regulating the input voltage at a second ratio. In this way, when the voltage of the power supply remains at a normal voltage, the corresponding switch is turned on to make the regulation circuit regulate the input voltage at the first ratio. When the power supply voltage is very low, the corresponding switch is turned on to make the regulation circuit regulate the input voltage at the second ratio. The regulated voltage can still drive the load to work, thereby increasing the remaining capacity of the power supply when the power is low.

[0092] In the embodiment of the present application, the regulating circuit is configured to disconnect the fifth switch, the sixth switch, the seventh switch, the eighth switch and the ninth switch, control the second charge pump not to work, and alternately turn on the first type of switch and the second type of switch, so that the first charge pump regulates the input voltage at a first ratio to obtain the first load voltage;

[0093] Alternatively, the regulation circuit is configured to disconnect the first switch, the second switch, the third switch, the fourth switch and the ninth switch, control the first charge pump to not work, and alternately turn on the third type of switch and the fourth type of switch, so that the second charge pump regulates the input voltage at a first ratio to obtain the first load voltage.

[0094] In an embodiment of the present application, the fifth switch, the sixth switch, the seventh switch, the eighth switch and the ninth switch are disconnected, the second charge pump is controlled not to work, and the first type of switches and the second type of switches are alternately turned on, wherein the first type of switches include the first switch and the second switch, and the second type of switches include the third switch and the fourth switch, so that the first charge pump adjusts the input voltage at a first ratio to obtain a first load voltage.

[0095] For example, referring to FIG6 , FIG6 is a schematic diagram of charging and discharging the first capacitor. Fig. 6A As shown, the fifth switch Q5, the sixth switch Q6, the seventh switch Q7, the eighth switch Q8 and the ninth switch Q9 are turned off, the second charge pump is controlled not to work, and the first switch Q1 and the second switch Q2 are turned on (as shown in FIG. Fig. 6A As shown by the thick arrow in the figure, the first capacitor in the first charge pump (i.e. Fig. 6A Cfly1 in FIG6 is charged, at which time the charging voltage Vc1 across the capacitor is Vc1=Vin-Vout1, where Vin is the input voltage of the power supply, V2X in FIG6 is the input voltage, Vout1 is the first load voltage, and V1X in FIG6 can be the first load voltage; Figure 6B As shown, the third switch Q3 and the fourth switch Q4 are turned on (as shown in FIG. Figure 6B As shown by the thick arrow in the figure, the first capacitor in the first charge pump is discharged. At this time, the voltage across the capacitor is Vc1=Vout1. When the first type of switch and the second type of switch are turned on alternately at a very fast speed, according to Vc1=Vin-Vout1 and Vc1=Vout1, Vin-Vout1=Vout1 is obtained, and Vin:Vout=2:1 is further obtained.

[0096] In another embodiment of the present application, the first switch, the second switch, the third switch, the fourth switch and the ninth switch are disconnected to control the first charge pump not to work, and the third type of switches and the fourth type of switches are alternately turned on, wherein the third type of switches include the fifth switch and the sixth switch, and the fourth type of switches include the seventh switch and the eighth switch, so that the second charge pump adjusts the input voltage at a first ratio to obtain a first load voltage.

[0097] For example, referring to FIG. 7 , FIG. 7 is a schematic diagram of charging and discharging the second capacitor. Fig. 7A As shown, the first switch Q1, the second switch Q2, the third switch Q3, the fourth switch Q4 and the ninth switch Q9 are turned off, the first charge pump is controlled not to work, and the fifth switch Q5 and the sixth switch Q6 are turned on (as shown in FIG. Fig. 7A As shown by the thick arrow in the figure, the second capacitor in the second charge pump (i.e. Fig. 7ACfly2 in FIG. 7 is charged, at which time the charging voltage Vc2 across the capacitor is Vc2=Vin-Vout1, where Vin is the input voltage of the power supply, V2X in FIG. 7 can be the input voltage, Vout1 is the first load voltage, and V1X in FIG. 7 can be the first load voltage; Figure 7B As shown, the seventh switch Q7 and the eighth switch Q8 (as shown in FIG. Figure 7B The second capacitor in the second charge pump is discharged (as indicated by the thick arrow). At this time, the voltage across the capacitor is Vc2=Vout. When the third and fourth switches are turned on alternately at a very fast speed, according to Vc2=Vin-Vout1 and Vc2=Vout1, Vin-Vout1=Vout1 is obtained, and further Vin:Vout=2:1 is obtained.

[0098] In the embodiment of the present application, when the input voltage is greater than or equal to the minimum voltage, by disconnecting the switch in one charge pump and turning on the switch in another charge pump, only one charge pump in the regulation circuit works, and the two types of switches in any charge pump are turned on alternately, so that any charge pump adjusts the input voltage at a first ratio. In this way, it is only necessary to continuously charge and discharge the capacitor in one charge pump to achieve the first load voltage after the input voltage of the power supply is adjusted at the first ratio. Under the condition of ensuring the normal operation of the load, only one charge pump is used to work, which can reduce energy consumption, save power, and increase battery life.

[0099] In an embodiment of the present application, the regulation circuit is also configured to alternately turn on the third group of switches and the fourth group of switches, control the first charge pump and the second charge pump to work simultaneously, so that the first charge pump and the second charge pump adjust the input voltage at a second ratio to obtain the second load voltage; wherein the third group of switches includes: the first switch, the second switch, the fifth switch and the sixth switch; the first switch, the second switch, the fifth switch and the sixth switch are turned on at the same time; the fourth group of switches includes, the fourth switch, the ninth switch and the seventh switch; the fourth switch, the ninth switch and the seventh switch are turned on at the same time.

[0100] In an embodiment of the present application, when the input voltage of the power supply is lower than the minimum voltage, the first load voltage obtained by adjusting the input voltage at a first ratio cannot drive the load to work. At this time, it is necessary to turn on the switches in the first charge pump and the second charge pump so that the first charge pump and the second charge pump work at the same time, so that the regulation circuit adjusts the input voltage at a second ratio to obtain a second load voltage, and the second ratio is greater than the first ratio.

[0101] For example, referring to FIG8 , FIG8 is a schematic diagram of discharging and charging the first capacitor and the second capacitor at the same time. Fig. 8AAs shown, the first switch Q1, the second switch Q2, the fifth switch Q5 and the sixth switch Q6 are turned on (as shown in FIG. Fig. 8A As shown by the thick arrow in the middle), the first capacitor (i.e. Fig. 8A Cfly1 in the capacitor and the second capacitor (i.e. Fig. 8A Cfly2 in FIG8 is used for charging, at which time the charging voltage Vc1=Vc2=Vin-Vout2 at both ends of the first capacitor and the second capacitor, wherein Vin is the input voltage, V2X in FIG8 may be the input voltage, Vout2 is the second load voltage, and V1X in FIG8 may be the second load voltage; Figure 8B As shown, the fourth switch Q4, the ninth switch Q9 and the seventh switch Q7 are turned on (as shown in FIG. Figure 8B As shown by the thick arrow in the middle), the first capacitor (i.e. Figure 8B Cfly1 in the capacitor and the second capacitor (i.e. Figure 8B Cfly2 in the circuit is discharged, and the first capacitor and the second capacitor are connected in series to supply power to the load V1X. At this time, Vc1+Vc2=Vout2. When the third and fourth switches are turned on alternately and rapidly, according to Vc1=Vc2=Vin-Vout2 and Vc1+Vc2=Vout2, Vin-Vout2+Vin-Vout2=Vout2 is obtained, thereby further obtaining Vin:Vout=3:2.

[0102] In an embodiment of the present application, when the input voltage is greater than or equal to the minimum voltage, the input voltage is adjusted using a first ratio of 2:1 to obtain a first load voltage, and the first load voltage is provided to the load. When the input voltage is less than the minimum voltage, the input voltage is adjusted using a second ratio of 3:2 to obtain a second load voltage, and the second load voltage is provided to the load.

[0103] Exemplary, reference Fig. 9 As shown, the dual-cell battery is the power source and the system main power source is the load. When the voltage of the dual-cell battery is between 3.3*2 and 4.5*2V, a 2:1 charge pump is used to obtain a system main power voltage between 3.3V and 4.5V, which drives the system to work. When the voltage of the dual-cell battery is between 3.0*2 and 3.3*2V, if the low voltage of the system main power source obtained by continuing to use the 2:1 charge pump is between 3.0 and 3.3V, the system cannot be driven to work. At this time, a new topology of a 3:2 charge pump is used to obtain a system main power voltage between 4 and 4.4V, which drives the system to work.

[0104] In the embodiment of the present application, when the voltage of the power supply is less than the minimum voltage, the first load voltage obtained by adjusting the input voltage with the first ratio cannot drive the load to work. Therefore, the first group of switches and the second group of switches are alternately turned on to make the first charge pump and the second charge pump work at the same time, so that the first charge pump and the second charge pump adjust the input voltage with the second ratio, and the second ratio is greater than the first ratio. In this way, when the voltage is less than the minimum voltage, the second load voltage obtained by adjusting the second ratio is greater than the first load voltage obtained by adjusting the first ratio, and can drive the load to work. Even if the input voltage is very small, the second load voltage obtained by adjusting the second ratio can meet the voltage requirement of the normal operation of the load, and at the same time avoid adding an additional Boost-Bypas boost circuit, which generates a large amount of energy loss, thereby improving the utilization rate of the remaining capacity when the power supply is low voltage, and further increasing the battery life. The inductance in the Boost-Bypas boost circuit will increase the cost and circuit area. Therefore, in the absence of inductance, the performance under low voltage can be extended, the endurance pressure can be relieved, and the competitiveness of thinness can be improved: the circuit cost and area can be reduced.

[0105] Exemplary, reference Fig.10 As shown, Fig.10 The dashed box below is the regulating circuit provided by the embodiment of the present application. Fig.10 The dashed box above is the boost circuit of the prior art. Through the analysis of simulation test data, it is concluded that the 3:2 charge pump topology structure in the embodiment of the present application effectively utilizes the remaining capacity of the battery at low power, can expand the performance under low voltage, relieve the pressure of battery life, and improve the competitiveness of thinness and lightness. Compared with the prior art Boost-Bypas circuit, the cost is reduced by about 45%, the area is reduced by 43%, the battery life is increased by about 0.005 days, and the power efficiency is higher - more than 98%.

[0106] The present application also provides an electronic device, referring to Fig.11 As shown, the electronic device includes a regulating circuit, and the regulating circuit includes: a power supply, a load, a first charge pump and a second charge pump;

[0107] An input end of the first charge pump and an input end of the second charge pump are both connected to the power supply, and an output end of the first charge pump and an output end of the second charge pump are both connected to the load;

[0108] When any one of the first charge pump and the second charge pump is in operation, the any one of the charge pumps is used to adjust the input voltage of the power supply at a first ratio to obtain a first load voltage, and provide the first load voltage to the load; the first ratio is a ratio between the input voltage and the first load voltage;

[0109] When the first charge pump and the second charge pump operate simultaneously, the first charge pump and the second charge pump are used to adjust the input voltage of the power supply at a second ratio to obtain a second load voltage and provide the second load voltage to the load; the second ratio is the ratio between the input voltage and the second load voltage, wherein the second ratio is greater than the first ratio.

[0110] In some embodiments, the first charge pump is configured to receive a first control signal, which is sent by the processor to the regulation circuit when the processor monitors that the input voltage is greater than or equal to the minimum voltage; in response to the first control signal, any one of the first charge pump and the second charge pump is operated.

[0111] In some embodiments, the second charge pump is configured to receive a second control signal, which is sent by the processor to the regulation circuit when the processor detects that the input voltage is less than the minimum voltage; in response to the second control signal, the first charge pump and the second charge pump are operated simultaneously.

[0112] In some embodiments, the first charge pump includes: a first type of switch, a second type of switch and a first capacitor; the first type of switch and the second type of switch are connected in series in sequence, the first end of the first type of switch is connected to the power supply, the second end of the second type of switch is grounded, the load is connected to the common end of the first type of switch and the second type of switch, one end of the first capacitor is connected to the first type of switch, and the other end of the first capacitor is connected to the second type of switch; the first type of switch is used to charge the first capacitor when it is turned on; the second type of switch is used to discharge the first capacitor when it is turned on; the second charge pump includes: a third type of switch, a fourth type of switch and a second capacitor; the third type of switch and the fourth type of switch are connected in series in sequence, the third type of switch The first end of the first type switch is connected to the power supply, the second end of the fourth type switch is grounded, the load is connected to the common end of the third type switch and the fourth type switch, one end of the second capacitor is connected to the third switch, and the other end of the second capacitor is connected to the first switch; the third type switch is used to charge the second capacitor when it is turned on; the fourth type switch is used to discharge the second capacitor when it is turned on; the first charge pump is connected to the second charge pump through the fifth type switch; wherein the second end of the first capacitor is connected to the first end of the fifth type switch, and the second end of the fifth type switch is connected to the first end of the second capacitor; the fifth type switch is used to discharge the first capacitor and the second capacitor at the same time when it is turned on.

[0113] In some embodiments, the regulation circuit is configured to disconnect the third type of switch, the fourth type of switch and the fifth type of switch to control the second charge pump to not work; and alternately turn on the first type of switch and the second type of switch to enable the first charge pump to adjust the input voltage at a first ratio to obtain the first load voltage; or, the regulation circuit is configured to disconnect the first type of switch, the second type of switch and the fifth type of switch to control the first charge to not work; and alternately turn on the third type of switch and the fourth type of switch to enable the second charge pump to adjust the input voltage at a first ratio to obtain the first load voltage.

[0114] In some embodiments, the regulation circuit is also configured to alternately turn on the first group of switches and the second group of switches, control the first charge pump and the second charge pump to work simultaneously, so that the first charge pump and the second charge pump adjust the input voltage at a second ratio to obtain the second load voltage; the first group of switches includes: the first type of switches and the third type of switches; the second group of switches includes: some switches in the second type of switches, some switches in the fourth type of switches and the fifth type of switches.

[0115] In some embodiments, the first type of switches includes a first switch and a second switch; the second type of switches includes a third switch and a fourth switch; the first end of the first switch is connected to the power supply, the first switch, the third switch, the second switch and the fourth switch are connected in series in sequence, the second end of the fourth switch is grounded, the load is connected to the common end of the third switch and the second switch, one end of the first capacitor is connected to the first end of the third switch, and the other end of the first capacitor is connected to the second end of the second switch; the third type of switches includes a fifth switch and a sixth switch, and the fourth type of switches includes a seventh switch and an eighth switch; the first end of the fifth switch is connected to the power supply, the fifth switch, the seventh switch, the sixth switch and the eighth switch are connected in series in sequence, the second end of the eighth switch is grounded, the load is connected to the common end of the seventh switch and the sixth switch, one end of the second capacitor is connected to the first end of the seventh switch, and the other end of the first capacitor is connected to the second end of the sixth switch; the fifth type of switches includes a ninth switch; the first charge pump and the second charge pump are connected through the ninth switch; wherein the second end of the first capacitor is connected to the first end of the ninth switch, and the second end of the ninth switch is connected to the first end of the second capacitor.

[0116] In some embodiments, the regulation circuit is configured to disconnect the fifth switch, the sixth switch, the seventh switch, the eighth switch and the ninth switch, control the second charge pump not to work, and alternately turn on the first type of switch and the second type of switch so that the first charge pump adjusts the input voltage at a first ratio to obtain the first load voltage; or, the regulation circuit is configured to disconnect the first switch, the second switch, the third switch, the fourth switch and the ninth switch, control the first charge pump not to work, and alternately turn on the third type of switch and the fourth type of switch so that the second charge pump adjusts the input voltage at a first ratio to obtain the first load voltage.

[0117] In some embodiments, the regulation circuit is further configured to alternately turn on a third group of switches and a fourth group of switches, control the first charge pump and the second charge pump to work simultaneously, and enable the first charge pump and the second charge pump to adjust the input voltage at a second ratio to obtain the second load voltage; wherein the third group of switches includes: the first switch, the second switch, the fifth switch and the sixth switch; the first switch, the second switch, the fifth switch and the sixth switch are turned on simultaneously; the fourth group of switches includes: the fourth switch, the ninth switch and the seventh switch; the fourth switch, the ninth switch and the seventh switch are turned on simultaneously.

[0118] In the several embodiments provided in the present application, it should be understood that the disclosed device can also be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0119] It should be noted that the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0120] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A regulating circuit, characterized in that: The regulating circuit comprises: a power supply, a load, a first charge pump and a second charge pump; An input end of the first charge pump and an input end of the second charge pump are both connected to the power supply, and an output end of the first charge pump and an output end of the second charge pump are both connected to the load; When any one of the first charge pump and the second charge pump is in operation, the any one of the charge pumps is used to adjust the input voltage of the power supply at a first ratio to obtain a first load voltage, and provide the first load voltage to the load; the first ratio is a ratio between the input voltage and the first load voltage; When the first charge pump and the second charge pump operate simultaneously, the first charge pump and the second charge pump are used to adjust the input voltage of the power supply at a second ratio to obtain a second load voltage and provide the second load voltage to the load; the second ratio is the ratio between the input voltage and the second load voltage, wherein the second ratio is greater than the first ratio.

2. The regulating circuit according to claim 1, characterized in that: receiving a first control signal, wherein the first control signal is sent by the processor to the regulating circuit when the processor detects that the input voltage is greater than or equal to the minimum voltage; In response to the first control signal, any one of the first charge pump and the second charge pump is operated.

3. The regulating circuit according to claim 1, characterized in that: receiving a second control signal, wherein the second control signal is sent by the processor to the regulating circuit when the processor detects that the input voltage is less than a minimum voltage; In response to the second control signal, the first charge pump and the second charge pump are operated simultaneously.

4. The regulating circuit according to claim 1, characterized in that: The first charge pump comprises: a first type switch, a second type switch and a first capacitor; the first type switch and the second type switch are connected in series in sequence, a first end of the first type switch is connected to the power supply, a second end of the second type switch is grounded, the load is connected to a common end of the first type switch and the second type switch, one end of the first capacitor is connected to the first type switch, and the other end of the first capacitor is connected to the second type switch; The first type of switch is used to charge the first capacitor when it is turned on; the second type of switch is used to discharge the first capacitor when it is turned on; The second charge pump includes: a third type switch, a fourth type switch and a second capacitor; The third type switch and the fourth type switch are connected in series in sequence, a first end of the third type switch is connected to the power supply, a second end of the fourth type switch is grounded, the load is connected to a common end of the third type switch and the fourth type switch, one end of the second capacitor is connected to the third switch, and the other end of the second capacitor is connected to the first switch; The third type of switch is used to charge the second capacitor when it is turned on; the fourth type of switch is used to discharge the second capacitor when it is turned on; The first charge pump is connected to the second charge pump via a fifth type switch; Among them, the second end of the first capacitor is connected to the first end of the fifth type switch, and the second end of the fifth type switch is connected to the first end of the second capacitor; the fifth type switch is used to discharge the first capacitor and the second capacitor simultaneously when it is turned on.

5. The regulating circuit according to claim 4, characterized in that: The regulating circuit is configured to disconnect the third type of switch, the fourth type of switch and the fifth type of switch to control the second charge pump to not work; and alternately turn on the first type of switch and the second type of switch to enable the first charge pump to regulate the input voltage at a first ratio to obtain the first load voltage; Alternatively, the regulating circuit is configured to disconnect the first type of switch, the second type of switch and the fifth type of switch to control the first charge to be inoperative; And alternately turning on the third type of switch and the fourth type of switch so that the second charge pump adjusts the input voltage at a first ratio to obtain the first load voltage.

6. The regulating circuit according to claim 4, characterized in that: The regulating circuit is further configured to alternately turn on the first group of switches and the second group of switches, control the first charge pump and the second charge pump to work simultaneously, so that the first charge pump and the second charge pump regulate the input voltage at a second ratio to obtain the second load voltage; The first group of switches includes: switches of the first category and switches of the third category; the second group of switches includes: some switches of the second category, some switches of the fourth category and switches of the fifth category.

7. The regulating circuit according to claim 4, characterized in that: The first type of switches include a first switch and a second switch; the second type of switches include a third switch and a fourth switch; A first end of the first switch is connected to the power supply, the first switch, the third switch, the second switch and the fourth switch are connected in series in sequence, a second end of the fourth switch is grounded, the load is connected to a common end of the third switch and the second switch, one end of the first capacitor is connected to a first end of the third switch, and the other end of the first capacitor is connected to a second end of the second switch; The third type of switches include a fifth switch and a sixth switch, and the fourth type of switches include a seventh switch and an eighth switch; A first end of the fifth switch is connected to the power supply, the fifth switch, the seventh switch, the sixth switch and the eighth switch are connected in series in sequence, a second end of the eighth switch is grounded, the load is connected to a common end of the seventh switch and the sixth switch, one end of the second capacitor is connected to a first end of the seventh switch, and the other end of the second capacitor is connected to a second end of the sixth switch; The fifth type of switches include: a ninth switch; The first charge pump is connected to the second charge pump via a ninth switch; The first end of the first capacitor is connected to the first end of the ninth switch, and the second end of the ninth switch is connected to the second end of the second capacitor.

8. The regulating circuit according to claim 7, characterized in that: The regulating circuit is configured to disconnect the fifth switch, the sixth switch, the seventh switch, the eighth switch and the ninth switch, control the second charge pump not to work, and alternately turn on the first type of switch and the second type of switch, so that the first charge pump regulates the input voltage at a first ratio to obtain the first load voltage; Alternatively, the regulation circuit is configured to disconnect the first switch, the second switch, the third switch, the fourth switch and the ninth switch, control the first charge pump to not work, and alternately turn on the third type of switch and the fourth type of switch, so that the second charge pump regulates the input voltage at a first ratio to obtain the first load voltage.

9. The circuit according to claim 7, characterized in that The regulation circuit is also configured to alternately turn on the third group of switches and the fourth group of switches, control the first charge pump and the second charge pump to work simultaneously, so that the first charge pump and the second charge pump adjust the input voltage at a second ratio to obtain the second load voltage; wherein the third group of switches includes: the first switch, the second switch, the fifth switch and the sixth switch; the first switch, the second switch, the fifth switch and the sixth switch are turned on at the same time; the fourth group of switches includes: the fourth switch, the ninth switch and the seventh switch; the fourth switch, the ninth switch and the seventh switch are turned on at the same time.

10. An electronic device, characterized in that: The electronic device comprises: a regulating circuit; the regulating circuit comprises: a power supply, a load, a first charge pump and a second charge pump; An input end of the first charge pump and an input end of the second charge pump are both connected to the power supply, and an output end of the first charge pump and an output end of the second charge pump are both connected to the load; When any one of the first charge pump and the second charge pump is in operation, the any one of the charge pumps is used to adjust the input voltage of the power supply at a first ratio to obtain a first load voltage, and provide the first load voltage to the load; the first ratio is a ratio between the input voltage and the first load voltage; When the first charge pump and the second charge pump operate simultaneously, the first charge pump and the second charge pump are used to adjust the input voltage of the power supply at a second ratio to obtain a second load voltage and provide the second load voltage to the load; the second ratio is the ratio between the input voltage and the second load voltage, wherein the second ratio is greater than the first ratio.

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