Voltage conversion circuit, power management chip, system on chip, and electronic device

Abstract

The present disclosure relates to a voltage conversion circuit, a power management chip, a system on chip and an electronic device. The voltage conversion circuit comprises at least one voltage conversion component, the voltage conversion component comprising: a first electrical connection end; a second electrical connection end; an energy storage circuit, the energy storage circuit comprising a first energy storage component and a second energy storage component electrically connected; a switching circuit, the switching circuit being electrically connected with the first electrical connection end, the second electrical connection end, the first energy storage component and the second energy storage component, and the switching circuit having a first state and a second state. By operating the switching circuit in different states, the first energy storage component and the second energy storage component can cooperate with each other to make the voltage of the first electrical connection end and the voltage of the second electrical connection end have a fourth relationship, thereby reducing the size and weight of the voltage conversion circuit.

Description

Technical Field

[0001] This disclosure relates to the field of voltage conversion technology, and in particular to a voltage conversion circuit, a power management chip, a system-on-a-chip, and an electronic device. Background Technology

[0002] Currently, with the rapid development of integrated circuits, the charging power of some electronic products is gradually increasing, and high-voltage, high-current charging is becoming the trend in charging development. To achieve fast battery charging and voltage matching, a voltage conversion circuit is needed between the power supply and the battery to complete the voltage conversion. However, voltage conversion circuits suffer from problems of large size and weight. Utility Model Content

[0003] To overcome the problems existing in related technologies, this disclosure provides a voltage conversion circuit, a power management chip, a system-on-a-chip, and an electronic device. Through the cooperation of a first electrical connection terminal, a second electrical connection terminal, an energy storage circuit, and a switching circuit, the circuit can be simplified, the number of capacitors and switches can be reduced, thereby reducing space occupation.

[0004] According to a first aspect of this disclosure, a voltage conversion circuit is provided, including at least one voltage conversion component, the voltage conversion component comprising:

[0005] First electrical connection terminal;

[0006] Second electrical connection terminal;

[0007] An energy storage circuit, the energy storage circuit comprising a first energy storage component and a second energy storage component electrically connected;

[0008] A switching circuit is electrically connected to the first electrical connection terminal, the second electrical connection terminal, the first energy storage component, and the second energy storage component. The switching circuit has a first state and a second state.

[0009] In the first state, there is a first relationship between the voltage of the first energy storage component and the voltage of the second energy storage component; in the second state, there is a second relationship between the voltage of the first energy storage component and the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal; in both the first and second states, there is a third relationship between the voltage of the second energy storage component and the voltage of the first electrical connection terminal or the voltage of the second electrical connection terminal; the first relationship, the second relationship, and the third relationship cause a fourth relationship between the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal.

[0010] In the voltage conversion circuit provided in this embodiment, the first energy storage component and the second energy storage component can cooperate with each other to make a fourth relationship between the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal by the switching circuit operating in different working states, thereby reducing the size and weight of the voltage conversion circuit.

[0011] In some embodiments of this disclosure, the switching circuit includes:

[0012] A first switching assembly is electrically connected to the first electrical connection terminal, the second electrical connection terminal, the first energy storage assembly, and the second energy storage assembly.

[0013] The second switching assembly is electrically connected to the first electrical connection terminal, the second electrical connection terminal, the first switching assembly, the first energy storage assembly, and the second energy storage assembly.

[0014] In the voltage conversion circuit provided in this embodiment, the first energy storage component and the second energy storage component are controlled by the first switch component and the second switch component to charge and discharge between the first electrical connection terminal and the second electrical connection terminal, so that the voltage between the first electrical connection terminal and the second electrical connection terminal has a fourth relationship to achieve the required voltage conversion effect, thereby reducing the complexity of the voltage conversion circuit.

[0015] In some embodiments of this disclosure, the first switch component and the second switch component are alternately turned on. In the first state, the first switch component is turned on and the second switch component is turned off; in the second state, the second switch component is turned on and the first switch component is turned off.

[0016] In the voltage conversion circuit provided in this embodiment, the first energy storage component and the second energy storage component are controlled to charge and discharge between the first electrical connection terminal and the second electrical connection terminal by the alternating conduction of the first switching component and the second switching component in the first state and the second state, so that the voltage between the first electrical connection terminal and the second electrical connection terminal has a fourth relationship to achieve the required voltage conversion effect, thereby reducing the complexity of the voltage conversion circuit.

[0017] In some embodiments of this disclosure, the first switching assembly includes a first switching unit, a second switching unit, a third switching unit, a fourth switching unit, and a fifth switching unit; the second switching assembly includes a sixth switching unit, a seventh switching unit, an eighth switching unit, a ninth switching unit, and a tenth switching unit.

[0018] The first end of the first switching unit is electrically connected to the first electrical connection end, and the second end of the first switching unit is electrically connected to both the first end of the sixth switching unit and the first end of the first energy storage component.

[0019] The first end of the second switching unit is electrically connected to the second end of the sixth switching unit and the first end of the second energy storage component. The second end of the second switching unit is electrically connected to the second electrical connection end, the first end of the third switching unit, the first end of the seventh switching unit and the first end of the eighth switching unit.

[0020] The second end of the third switching unit is electrically connected to the first end of the ninth switching unit, the second end of the first energy storage component, and the second end of the second energy storage component.

[0021] The first end of the fourth switching unit is electrically connected to the second end of the seventh switching unit, the third end of the first energy storage component, and the third end of the second energy storage component. The second end of the fourth switching unit is electrically connected to the second end of the ninth switching unit and the grounding end.

[0022] The first end of the fifth switching unit is electrically connected to the first end of the tenth switching unit and the fourth end of the first energy storage component, and the second end of the fifth switching unit is electrically connected to the second end of the eighth switching unit and the fourth end of the second energy storage component.

[0023] The second end of the tenth switch unit is electrically connected to the first electrical connection end.

[0024] In the voltage conversion circuit provided in this embodiment, the voltage conversion effect can be achieved simply by controlling ten switching units to cooperate with the first energy storage component and the second energy storage component. This allows the switching circuit to enter either the first or second state to meet the voltage conversion requirements, thereby reducing the complexity of the voltage conversion circuit.

[0025] In some embodiments of this disclosure, each of the first switching unit, the second switching unit, the third switching unit, the fourth switching unit, the fifth switching unit, the sixth switching unit, the seventh switching unit, the eighth switching unit, the ninth switching unit, and the tenth switching unit includes:

[0026] First switching device; or,

[0027] Multiple second switching devices connected in series; or,

[0028] Multiple third switching devices connected in parallel.

[0029] In the voltage conversion circuit provided in this embodiment, voltage conversion can be achieved simply by controlling ten first switching devices in conjunction with the first and second energy storage components, reducing the complexity of the voltage conversion circuit. Alternatively, multiple series-connected second switching devices can divide the voltage to improve the voltage withstand capability of the entire switching unit, thereby enhancing the reliability of the voltage conversion circuit. Furthermore, multiple parallel-connected third switching devices can share the current, improving the current handling capability of the entire switching unit. Moreover, even if one third switching device fails, the other parallel-connected third switching devices can still operate normally, allowing the corresponding switching unit to conduct or disconnect normally, further improving the reliability of the voltage conversion circuit.

[0030] In some embodiments of this disclosure, the first energy storage component includes a first energy storage unit and a second energy storage unit; the second energy storage component includes a third energy storage unit and a fourth energy storage unit.

[0031] The first end of the first energy storage unit is electrically connected to the second end of the first switch unit and the first end of the sixth switch unit. The second end of the first energy storage unit is electrically connected to the second end of the third switch unit, the first end of the ninth switch unit, and the first end of the fourth energy storage unit.

[0032] The first end of the second energy storage unit is electrically connected to the first end of the fifth switch unit and the first end of the tenth switch unit, and the second end of the second energy storage unit is electrically connected to the first end of the fourth switch unit, the second end of the seventh switch unit and the first end of the third energy storage unit.

[0033] The second end of the third energy storage unit is electrically connected to the first end of the second switching unit and the second end of the sixth switching unit;

[0034] The second end of the fourth energy storage unit is electrically connected to the second end of the fifth switching unit and the second end of the eighth switching unit.

[0035] In the voltage conversion circuit provided in this embodiment, the voltage conversion effect can be achieved by controlling ten switching units and four energy storage units in combination. At the same time, the use of circuit components is reduced, the circuit is simplified, the space occupied by the voltage conversion circuit is reduced, and the voltage conversion efficiency is improved.

[0036] In some embodiments of this disclosure, each of the first energy storage unit, the second energy storage unit, the third energy storage unit, and the fourth energy storage unit comprises:

[0037] First capacitor; or,

[0038] Multiple second capacitors connected in series; or,

[0039] Multiple third capacitors connected in parallel.

[0040] In the voltage conversion circuit provided in this embodiment, voltage conversion can be achieved by controlling only ten switching units and four first capacitors. This reduces the number of circuit components, simplifies the circuit, minimizes the space occupied by the voltage conversion circuit, and improves voltage conversion efficiency. Alternatively, multiple second capacitors connected in series can divide the voltage to increase the voltage withstand capability of the entire energy storage unit, thereby improving the reliability of the voltage conversion circuit. Furthermore, multiple third capacitors connected in parallel can share the current, enhancing the current handling capability of the entire capacitor unit and further improving the reliability of the voltage conversion circuit.

[0041] In some embodiments of this disclosure, each of the energy storage units further includes:

[0042] A first inductor, wherein the first inductor is connected in series with the first capacitor; or...

[0043] Multiple second inductors, each second inductor connected in series with a second capacitor; or,

[0044] Multiple third inductors, each of which is connected in series with a third capacitor.

[0045] In the voltage conversion circuit provided in this embodiment, each capacitor of the energy storage unit is connected in series with an inductor to form a resonant circuit, which can filter noise interference, ensure the purity of the electrical energy output by the voltage conversion circuit, and avoid interference to the radio frequency module, processor and other devices of the equipment.

[0046] In some embodiments of this disclosure, the voltage conversion component further includes:

[0047] A voltage stabilizing capacitor, wherein the first end of the voltage stabilizing capacitor is electrically connected to the first electrical connection terminal or the second electrical connection terminal, and the second end of the voltage stabilizing capacitor is electrically connected to the ground terminal.

[0048] In the voltage conversion circuit provided in this embodiment, the voltage stabilizing capacitor can absorb and release electrical energy, thereby smoothing voltage fluctuations in the circuit.

[0049] In some embodiments of this disclosure, the voltage of the first electrical connection terminal is three times the voltage of the second electrical connection terminal.

[0050] In the voltage conversion circuit provided in this embodiment, by controlling the first switch assembly and the second switch assembly to alternately conduct, and cooperating with the four energy storage units, the first electrical connection terminal and the second electrical connection terminal, a 3-fold voltage conversion effect can be achieved. At the same time, the use of circuit components is reduced, the circuit is simplified, the space occupied by the voltage conversion circuit is reduced, and the voltage conversion efficiency is improved.

[0051] In some embodiments of this disclosure, the voltage conversion circuit includes a plurality of voltage conversion components connected in series; or, the plurality of voltage conversion components are connected in parallel; or, some of the voltage conversion components are connected in parallel and then connected in series with another portion of the voltage conversion components.

[0052] In the voltage conversion circuit provided in this embodiment, by connecting multiple voltage conversion components in series, a higher voltage conversion ratio can be achieved, thereby increasing the power of the voltage conversion circuit. Alternatively, by connecting multiple voltage conversion components in parallel, a higher output current can be achieved, thereby increasing the power of the voltage conversion circuit. Or, by connecting multiple voltage conversion components in both series and parallel, both the output voltage and output current can be higher, thereby increasing the power of the voltage conversion circuit.

[0053] According to a second aspect of this disclosure, a power management chip is provided, including the voltage conversion circuit described above.

[0054] According to a third aspect of this disclosure, a system-on-a-chip is provided, including the voltage conversion circuit described above.

[0055] According to a fourth aspect of this disclosure, an electronic device is provided, including a power management chip as described above or a system-on-a-chip as described above.

[0056] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0057] By operating the switching circuit in different working states, the first energy storage component and the second energy storage component can cooperate with each other to establish a fourth relationship between the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal, thereby reducing the size and weight of the voltage conversion circuit.

[0058] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0059] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0060] Figure 1 This is a schematic diagram of a voltage conversion circuit provided in an exemplary embodiment of the present disclosure;

[0061] Figure 2 This is a schematic diagram of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0062] Figure 3This is a schematic diagram of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0063] Figure 4 This is a schematic diagram of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0064] Figure 5 This is a schematic diagram of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0065] Figure 6 This is a schematic diagram of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0066] Figure 7 This is a schematic diagram of an equivalent circuit in a first state provided by an exemplary embodiment of the present disclosure;

[0067] Figure 8 This is a schematic diagram of an equivalent circuit in a second state provided by an exemplary embodiment of the present disclosure;

[0068] Figure 9 This is a schematic diagram of a multiphase application of a voltage conversion circuit provided in an exemplary embodiment of the present disclosure;

[0069] Figure 10 This is a schematic diagram of a multiphase application of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0070] Figure 11 This is a schematic diagram of a multiphase application of a voltage conversion circuit provided in another exemplary embodiment of this disclosure;

[0071] Figure 12 This is a schematic diagram of a multiphase application of a voltage conversion circuit provided in another exemplary embodiment of this disclosure.

[0072] In the picture:

[0073] 10. Energy storage circuit; 20. Switching circuit; 100. Voltage conversion component; 110. First energy storage component; 120. Second energy storage component; 210. First switching component; 220. Second switching component; 1101. First energy storage unit; 1102. Second energy storage unit; 1201. Third energy storage unit; 1202. Fourth energy storage unit; 2101. First switching unit; 2102. Second switching unit; 2103. Third switching unit; 2104. Fourth switching unit; 2105. Fifth switching unit; 2201. Sixth switching unit; 2202. Seventh switching unit. Switching unit; 2203, eighth switching unit; 2204, ninth switching unit; 2205, tenth switching unit; C0, voltage stabilizing capacitor; C1, first capacitor; C2, second capacitor; C3, third capacitor; C4, fourth capacitor; Q1, first transistor; Q2, second transistor; Q3, third transistor; Q4, fourth transistor; Q5, fifth transistor; Q6, sixth transistor; Q7, seventh transistor; Q8, eighth transistor; Q9, ninth transistor; Q10, tenth transistor; V1, first electrical connection terminal; V2, second electrical connection terminal; GND, ground terminal. Detailed Implementation

[0074] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims. It should also be understood that the term “and / or” as used herein refers to any or all possible combinations including one or more of the associated listed items.

[0075] This disclosure provides a voltage conversion circuit, including at least one voltage conversion component, comprising: a first electrical connection terminal; a second electrical connection terminal; an energy storage circuit, including a first energy storage component and a second energy storage component electrically connected; and a switching circuit electrically connected to the first electrical connection terminal, the second electrical connection terminal, the first energy storage component, and the second energy storage component. The switching circuit has a first state and a second state. In the first state, a first relationship exists between the voltage of the first energy storage component and the voltage of the second energy storage component; in the second state, a second relationship exists between the voltage of the first energy storage component and the voltages of the first and second electrical connection terminals; in both the first and second states, a third relationship exists between the voltage of the second energy storage component and either the voltage of the first or the second electrical connection terminal; the first, second, and third relationships result in a fourth relationship between the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal. By operating the switching circuit in different working states, the first and second energy storage components can cooperate to establish a fourth relationship between the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal, thereby reducing the size and weight of the voltage conversion circuit.

[0076] An exemplary embodiment of this disclosure provides a voltage conversion circuit, such as Figure 1 As shown, the voltage conversion circuit includes at least one voltage conversion component 100, which includes a first electrical connection terminal V1, a second electrical connection terminal V2, an energy storage circuit 10, and a switching circuit 20.

[0077] In some embodiments, the first electrical connection terminal V1 can be an input terminal or an output terminal, and the second electrical connection terminal V2 can be an output terminal or an input terminal. The input terminal is used to be electrically connected to the power supply, and the output terminal is used to be electrically connected to the load.

[0078] The energy storage circuit 10 includes a first energy storage component 110 and a second energy storage component 120 that are electrically connected.

[0079] The switching circuit 20 is electrically connected to the first electrical connection terminal V1, the second electrical connection terminal V2, the first energy storage component 110, and the second energy storage component 120. The switching circuit 20 has a first state and a second state.

[0080] In the first state, a first relationship exists between the voltage of the first energy storage component 110 and the voltage of the second energy storage component 120. In the second state, a second relationship exists between the voltage of the first energy storage component 110 and the voltage of the first electrical connection terminal V1 and the voltage of the second electrical connection terminal V2. In both the first and second states, a third relationship exists between the voltage of the second energy storage component 120 and either the voltage of the first electrical connection terminal V1 or the voltage of the second electrical connection terminal V2. The first, second, and third relationships result in a fourth relationship between the voltage of the first electrical connection terminal V1 and the voltage of the second electrical connection terminal V2.

[0081] In the voltage conversion circuit provided in this embodiment, the first energy storage component and the second energy storage component can cooperate with each other to make a fourth relationship between the voltage of the first electrical connection terminal and the voltage of the second electrical connection terminal by the switching circuit operating in different working states, thereby reducing the size and weight of the voltage conversion circuit.

[0082] In an exemplary embodiment of this disclosure, such as Figure 2 As shown, the switching circuit 20 includes a first switching component 210 and a second switching component 220.

[0083] The first switch assembly 210 is electrically connected to the first electrical connection terminal V1, the second electrical connection terminal V2, the first energy storage assembly 110, and the second energy storage assembly 120. The second switch assembly 220 is electrically connected to the first electrical connection terminal V1, the second electrical connection terminal V2, the first switch assembly 210, the first energy storage assembly 110, and the second energy storage assembly 120.

[0084] In the voltage conversion circuit provided in this embodiment, the first energy storage component and the second energy storage component are controlled by the first switch component and the second switch component to charge and discharge between the first electrical connection terminal and the second electrical connection terminal, so that the voltage between the first electrical connection terminal and the second electrical connection terminal has a fourth relationship to achieve the required voltage conversion effect, thereby reducing the complexity of the voltage conversion circuit.

[0085] In some embodiments, the first switch component 210 and the second switch component 220 are alternately turned on. In a first state, the first switch component 210 is turned on and the second switch component 220 is turned off. In a second state, the second switch component 220 is turned on and the first switch component 210 is turned off.

[0086] In other embodiments, in a first state, the second switch assembly 220 is turned on and the first switch assembly 210 is turned off. In a second state, the first switch assembly 210 is turned on and the second switch assembly 220 is turned off.

[0087] In the voltage conversion circuit provided in this embodiment, the first energy storage component and the second energy storage component are controlled to charge and discharge between the first electrical connection terminal and the second electrical connection terminal by the alternating conduction of the first switching component and the second switching component in the first state and the second state, so that the voltage between the first electrical connection terminal and the second electrical connection terminal has a fourth relationship to achieve the required voltage conversion effect, thereby reducing the complexity of the voltage conversion circuit.

[0088] In an exemplary embodiment of this disclosure, such as Figure 3 As shown, the first switch assembly 210 includes a first switch unit 2101, a second switch unit 2102, a third switch unit 2103, a fourth switch unit 2104, and a fifth switch unit 2105. The second switch assembly 220 includes a sixth switch unit 2201, a seventh switch unit 2202, an eighth switch unit 2203, a ninth switch unit 2204, and a tenth switch unit 2205.

[0089] The first end of the first switching unit 2101 is electrically connected to the first electrical connection terminal V1. The second end of the first switching unit 2101 is electrically connected to the first end of the sixth switching unit 2201 and the first end of the first energy storage component 110. The first end of the second switching unit 2102 is electrically connected to the second end of the sixth switching unit 2201 and the first end of the second energy storage component 120. The second end of the second switching unit 2102 is electrically connected to the second electrical connection terminal V2, the first end of the third switching unit 2103, the first end of the seventh switching unit 2202, and the first end of the eighth switching unit 2203. The second end of the third switching unit 2103 is electrically connected to the first end of the ninth switching unit 2204, the second end of the first energy storage component 110, and the second end of the second energy storage component 120. The first terminal of the fourth switching unit 2104 is electrically connected to the second terminal of the seventh switching unit 2202, the third terminal of the first energy storage component 110, and the third terminal of the second energy storage component 120. The second terminal of the fourth switching unit 2104 is electrically connected to the second terminal of the ninth switching unit 2204 and the ground terminal GND. The first terminal of the fifth switching unit 2105 is electrically connected to the first terminal of the tenth switching unit 2205 and the fourth terminal of the first energy storage component 110. The second terminal of the fifth switching unit 2105 is electrically connected to the second terminal of the eighth switching unit 2203 and the fourth terminal of the second energy storage component 120. The second terminal of the tenth switching unit 2205 is electrically connected to the first electrical connection terminal V1.

[0090] In the voltage conversion circuit provided in this embodiment, the voltage conversion effect can be achieved simply by controlling ten switching units to cooperate with the first energy storage component and the second energy storage component. This allows the switching circuit to enter either the first or second state to meet the voltage conversion requirements, thereby reducing the complexity of the voltage conversion circuit.

[0091] In some embodiments, each of the first switching unit 2101, the second switching unit 2102, the third switching unit 2103, the fourth switching unit 2104, the fifth switching unit 2105, the sixth switching unit 2201, the seventh switching unit 2202, the eighth switching unit 2203, the ninth switching unit 2204, and the tenth switching unit 2205 may include a first switching device.

[0092] In the voltage conversion circuit provided in this embodiment, the voltage conversion effect can be achieved simply by controlling ten first switching devices to cooperate with the first energy storage component and the second energy storage component, thus reducing the complexity of the voltage conversion circuit.

[0093] In some embodiments, each of the first switching unit 2101, the second switching unit 2102, the third switching unit 2103, the fourth switching unit 2104, the fifth switching unit 2105, the sixth switching unit 2201, the seventh switching unit 2202, the eighth switching unit 2203, the ninth switching unit 2204, and the tenth switching unit 2205 may include a plurality of second switching devices connected in series.

[0094] In the voltage conversion circuit provided in this embodiment, since multiple series-connected second switching devices can divide the voltage between each other, the voltage withstand capability of the entire switching unit can be improved, thereby improving the reliability of the voltage conversion circuit.

[0095] In some embodiments, each of the first switching unit 2101, the second switching unit 2102, the third switching unit 2103, the fourth switching unit 2104, the fifth switching unit 2105, the sixth switching unit 2201, the seventh switching unit 2202, the eighth switching unit 2203, the ninth switching unit 2204, and the tenth switching unit 2205 may include a plurality of third switching devices connected in parallel.

[0096] In the voltage conversion circuit provided in this embodiment, since each switching device can share a portion of the current, the current handling capacity of the entire switching unit can be improved. At the same time, if a third switching device fails, other third switching devices connected in parallel with it can still work normally, and the corresponding switching unit can be turned on or off normally, thereby improving the reliability of the voltage conversion circuit.

[0097] For example, the first switching device, the second switching device, and the third switching device may all include any controllable switch, such as NMOS, PMOS, electronic switch, etc., and this embodiment does not limit them.

[0098] In an exemplary embodiment of this disclosure, such as Figure 4As shown, the first energy storage component 110 includes a first energy storage unit 1101 and a second energy storage unit 1102, and the second energy storage component 120 includes a third energy storage unit 1201 and a fourth energy storage unit 1202.

[0099] The first terminal of the first energy storage unit 1101 is electrically connected to the second terminals of the first switching unit 2101 and the sixth switching unit 2201. The second terminal of the first energy storage unit 1101 is electrically connected to the second terminal of the third switching unit 2103, the first terminal of the ninth switching unit 2204, and the first terminal of the fourth energy storage unit 1202. The first terminal of the second energy storage unit 1102 is electrically connected to the first terminals of the fifth switching unit 2105 and the tenth switching unit 2205. The second terminal of the second energy storage unit 1102 is electrically connected to the first terminals of the fourth switching unit 2104, the seventh switching unit 2202, and the third energy storage unit 1201. The second terminal of the third energy storage unit 1201 is electrically connected to the first terminals of the second switching unit 2102 and the sixth switching unit 2201. The second terminal of the fourth energy storage unit 1202 is electrically connected to the second terminals of the fifth switching unit 2105 and the eighth switching unit 2203.

[0100] In the voltage conversion circuit provided in this embodiment, the voltage conversion effect can be achieved by controlling ten switching units and four energy storage units in combination. At the same time, the use of circuit components is reduced, the circuit is simplified, the space occupied by the voltage conversion circuit is reduced, and the voltage conversion efficiency is improved.

[0101] In some embodiments, each of the first energy storage unit 1101, the second energy storage unit 1102, the third energy storage unit 1201, and the fourth energy storage unit 1202 may include a first capacitor.

[0102] In the voltage conversion circuit provided in this embodiment, the voltage conversion effect can be achieved by controlling ten switching units and four first capacitors. At the same time, the use of circuit components is reduced, the circuit is simplified, the space occupied by the voltage conversion circuit is reduced, and the voltage conversion efficiency is improved.

[0103] For example, such as Figure 5As shown, in the voltage conversion circuit 100 provided in this embodiment, the first energy storage unit 1101 includes a first capacitor C1, the second energy storage unit 1102 includes a second capacitor C2, the third energy storage unit 1201 includes a third capacitor C3, and the fourth energy storage unit 1202 includes a fourth capacitor C4. The first switching unit 2101 includes a first transistor Q1, the second switching unit 2102 includes a second transistor Q2, the third switching unit 2103 includes a third transistor Q3, the fourth switching unit 2104 includes a fourth transistor Q4, the fifth switching unit 2105 includes a fifth transistor Q5, the sixth switching unit 2201 includes a sixth transistor Q6, the seventh switching unit 2202 includes a seventh transistor Q7, the eighth switching unit 2203 includes an eighth transistor Q8, the ninth switching unit 2204 includes a ninth transistor Q9, and the tenth switching unit 2205 includes a tenth transistor Q10.

[0104] In some embodiments, each of the first energy storage unit 1101, the second energy storage unit 1102, the third energy storage unit 1201, and the fourth energy storage unit 1202 may include a plurality of second capacitors connected in series.

[0105] In the voltage conversion circuit provided in this embodiment, since multiple series-connected second capacitors can divide the voltage among themselves, the voltage withstand capability of the entire energy storage unit can be improved, thereby improving the reliability of the voltage conversion circuit.

[0106] In some embodiments, each of the first energy storage unit 1101, the second energy storage unit 1102, the third energy storage unit 1201, and the fourth energy storage unit 1202 may include a plurality of third capacitors connected in parallel.

[0107] In the voltage conversion circuit provided in this embodiment, since each third capacitor can share a portion of the current, the current handling capability of the entire capacitor unit can be improved, thereby enhancing the reliability of the voltage conversion circuit.

[0108] In some embodiments, each energy storage unit may further include: a first inductor, wherein the first inductor is connected in series with a first capacitor.

[0109] In the voltage conversion circuit provided in this embodiment, each capacitor of the energy storage unit is connected in series with an inductor to form a resonant circuit, which can filter noise interference, ensure the purity of the electrical energy output by the voltage conversion circuit, and avoid interference to the radio frequency module, processor and other devices of the equipment.

[0110] In some embodiments, each energy storage unit may further include: a plurality of second inductors, each second inductor being connected in series with a second capacitor.

[0111] In the voltage conversion circuit provided in this embodiment, each capacitor of the energy storage unit is connected in series with an inductor to form a resonant circuit. Through the series connection of multiple resonant circuits, voltage can be divided among them while filtering noise interference, ensuring the purity of the electrical energy output by the voltage conversion circuit and avoiding interference to the radio frequency module, processor and other devices of the equipment.

[0112] In some embodiments, each energy storage unit may further include: a plurality of third inductors, each third inductor being connected in series with a third capacitor.

[0113] In the voltage conversion circuit provided in this embodiment, each capacitor of the energy storage unit is connected in series with an inductor to form a resonant circuit. By connecting multiple resonant circuits in parallel, the current can be shared while filtering noise interference, ensuring the purity of the electrical energy output by the voltage conversion circuit and avoiding interference to the radio frequency module, processor and other devices of the equipment.

[0114] In some embodiments, such as Figure 6 As shown, the voltage conversion component 100 also includes a voltage regulator capacitor C0. The first end of the voltage regulator capacitor C0 is electrically connected to either the first electrical connection terminal V1 or the second electrical connection terminal V2, and the second end of the voltage regulator capacitor C0 is electrically connected to the ground terminal GND. Figure 6 This circuit structure, shown only as an example, illustrates a circuit structure in which the first terminal of the voltage regulator capacitor C0 is electrically connected to the second electrical connection terminal V2. The voltage regulator capacitor can absorb and release electrical energy, thereby smoothing voltage fluctuations in the circuit.

[0115] In an exemplary embodiment of this disclosure, the voltage of the first electrical connection terminal V1 is three times the voltage of the second electrical connection terminal V2.

[0116] In some embodiments, when the first electrical connection terminal V1 is connected to the power supply and the second electrical connection terminal V2 is connected to the load, a three-fold boost output can be achieved.

[0117] In other embodiments, when the first electrical connection terminal V1 is connected to the load and the second electrical connection terminal V2 is connected to the power supply, a three-fold step-down output can be achieved.

[0118] In one possible implementation, in the first state, the first switch component 210 is turned on and the second switch component 220 is turned off. In the second state, the second switch component 220 is turned on and the first switch component 210 is turned off.

[0119] Corresponding to the first state, the first switch unit 2101, the second switch unit 2102, the third switch unit 2103, the fourth switch unit 2104, and the fifth switch unit 2105 are all in the ON state, while the sixth switch unit 2201, the seventh switch unit 2202, the eighth switch unit 2203, the ninth switch unit 2204, and the tenth switch unit 2205 are all in the OFF state. Figure 6 The equivalent circuit of the voltage conversion circuit shown is as follows: Figure 7 As shown.

[0120] In the first state, a first relationship exists between the voltage of the first energy storage component 110 and the voltage of the second energy storage component 120, which may include: the second energy storage voltage V2 corresponding to the second energy storage unit 1102 is equal to the sum of the third energy storage voltage V3 corresponding to the third energy storage unit 1201 and the fourth energy storage voltage V4 corresponding to the fourth energy storage unit 1202, i.e., V2 = V3 + V4. In the first state, a third relationship exists between the voltage of the second energy storage component 120 and the voltage of the first electrical connection terminal V1 or the second electrical connection terminal V2, which may include: taking the second electrical connection terminal V2 as an example, in the first state, the third energy storage voltage V3 corresponding to the third energy storage unit 1201 is equal to the second voltage V22 corresponding to the second electrical connection terminal V2, i.e., V3 = V22.

[0121] Corresponding to the second state, the first switch unit 2101, the second switch unit 2102, the third switch unit 2103, the fourth switch unit 2104, and the fifth switch unit 2105 are all in the off state, while the sixth switch unit 2201, the seventh switch unit 2202, the eighth switch unit 2203, the ninth switch unit 2204, and the tenth switch unit 2205 are all in the on state. Figure 6 The equivalent circuit of the voltage conversion circuit shown is as follows: Figure 8 As shown.

[0122] In the second state, the voltage of the first energy storage component 110 and the voltage of the first electrical connection terminal V1 and the voltage of the second electrical connection terminal V2 have a second relationship, which may include: the first voltage V11 corresponding to the first electrical connection terminal V1 is equal to the sum of the second voltage V22 corresponding to the second electrical connection terminal V2 and the second energy storage voltage V2 corresponding to the second energy storage unit 1102, that is, V11 = V22 + V2.

[0123] In the second state, the third relationship between the voltage of the second energy storage component 120 and the voltage of the first electrical connection terminal V1 or the second electrical connection terminal V2 may include: taking the second electrical connection terminal V2 as an example, in the second state, the fourth energy storage voltage V4 corresponding to the fourth energy storage unit 1202 is equal to the second voltage V22 corresponding to the second electrical connection terminal V2, that is, V4 = V22.

[0124] Therefore, based on the first, second, and third relationships, a fourth relationship may exist between the voltage of the first electrical connection terminal V1 and the voltage of the second electrical connection terminal V2, which could be: V11 = 3V22.

[0125] As another possible implementation, in the first state, the second switch component is on and the first switch component is off. In the second state, the first switch component is on and the second switch component is off.

[0126] Corresponding to the first state, the first switch unit 2101, the second switch unit 2102, the third switch unit 2103, the fourth switch unit 2104, and the fifth switch unit 2105 are all in the off state, while the sixth switch unit 2201, the seventh switch unit 2202, the eighth switch unit 2203, the ninth switch unit 2204, and the tenth switch unit 2205 are all in the on state. Figure 6 The equivalent circuit of the voltage conversion circuit shown is as follows: Figure 8 As shown.

[0127] In the first state, the first relationship between the voltage of the first energy storage component 110 and the voltage of the second energy storage component 120 may include: the first energy storage voltage V1 corresponding to the first energy storage unit 1101 is equal to the sum of the third energy storage voltage V3 corresponding to the third energy storage unit 1201 and the fourth energy storage voltage V4 corresponding to the fourth energy storage unit 1202, that is, V1 = V3 + V4.

[0128] In the first state, the third relationship between the voltage of the second energy storage component 120 and the voltage of the first electrical connection terminal V1 or the second electrical connection terminal V2 may include: taking the second electrical connection terminal V2 as an example, in the second state, the fourth energy storage voltage V4 corresponding to the fourth energy storage unit 1202 is equal to the second voltage V22 corresponding to the second electrical connection terminal V2, that is, V4 = V22.

[0129] Corresponding to the second state, the first switch unit 2101, the second switch unit 2102, the third switch unit 2103, the fourth switch unit 2104, and the fifth switch unit 2105 are all in the ON state, while the sixth switch unit 2201, the seventh switch unit 2202, the eighth switch unit 2203, the ninth switch unit 2204, and the tenth switch unit 2205 are all in the OFF state. Figure 6 The equivalent circuit of the voltage conversion circuit shown is as follows: Figure 7 As shown.

[0130] In the second state, the voltage of the first energy storage component 110 and the voltage of the first electrical connection terminal V1 and the voltage of the second electrical connection terminal V2 have a second relationship, which may include: the first voltage V11 corresponding to the first electrical connection terminal V1 is equal to the sum of the second voltage V22 corresponding to the second electrical connection terminal V2 and the first energy storage voltage V1 corresponding to the first energy storage unit 1101, that is, V11 = V22 + V1.

[0131] In the second state, the third relationship between the voltage of the second energy storage component 120 and the voltage of the first electrical connection terminal V1 or the second electrical connection terminal V2 may include: taking the second electrical connection terminal V2 as an example, in the second state, the third energy storage voltage V3 corresponding to the third energy storage unit 1201 is equal to the second voltage V22 corresponding to the second electrical connection terminal V2, that is, V3 = V22.

[0132] Therefore, based on the first, second, and third relationships, a fourth relationship may exist between the voltage of the first electrical connection terminal V1 and the voltage of the second electrical connection terminal V2, which could be: V11 = 3V22.

[0133] In the voltage conversion circuit provided in this embodiment, by controlling the first switch assembly and the second switch assembly to alternately conduct, and cooperating with the four energy storage units, the first electrical connection terminal and the second electrical connection terminal, a 3-fold voltage conversion effect can be achieved. At the same time, the use of circuit components is reduced, the circuit is simplified, the space occupied by the voltage conversion circuit is reduced, and the voltage conversion efficiency is improved.

[0134] In an exemplary embodiment of this disclosure, the voltage conversion circuit may include a plurality of voltage conversion components 100.

[0135] In some embodiments, such as Figure 9 As shown, the voltage conversion circuit may include multiple voltage conversion components 100 connected in series.

[0136] In the voltage conversion circuit provided in this embodiment, by connecting multiple voltage conversion components in series, a higher voltage conversion factor can be achieved, thereby improving the power of the voltage conversion circuit.

[0137] In other embodiments, such as Figure 10 As shown, the voltage conversion circuit may include multiple voltage conversion components 100 connected in parallel.

[0138] In the voltage conversion circuit provided in this embodiment, by connecting multiple voltage conversion components in parallel, the output current can be increased, thereby improving the power of the voltage conversion circuit.

[0139] In other embodiments, such as Figures 11-12 As shown, the voltage conversion circuit may include some voltage conversion components 100 connected in parallel and then connected in series with another part of the voltage conversion components 100.

[0140] In the voltage conversion circuit provided in this embodiment, by connecting multiple voltage conversion components in series and parallel, both the output voltage and output current can be higher, thereby improving the power of the voltage conversion circuit.

[0141] An exemplary embodiment of this disclosure provides a power management chip, including the voltage conversion circuit described in the above embodiment.

[0142] An exemplary embodiment of this disclosure provides a system-on-a-chip including the voltage conversion circuit described in the above embodiments.

[0143] An exemplary embodiment of this disclosure provides an electronic device, including the power management chip or system-on-a-chip described in the above embodiments. The electronic device is, for example, a mobile phone, a laptop computer, a tablet computer, and a wearable device.

[0144] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0145] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0146] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0147] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A voltage conversion circuit, characterized by, The voltage conversion assembly comprises at least one voltage conversion component, the voltage conversion component comprises: a first electrical connection end; a second electrical connection end; a storage circuit, the storage circuit comprises a first storage component and a second storage component connected by electricity; a switch circuit, the switch circuit is electrically connected with the first electrical connection end, the second electrical connection end, the first storage component and the second storage component, and has a first state and a second state; in the first state, there is a first relationship between the voltage of the first storage component and the voltage of the second storage component; in the second state, there is a second relationship between the voltage of the first storage component and the voltage of the first electrical connection end and the voltage of the second electrical connection end; in the first state and the second state, there is a third relationship between the voltage of the second storage component and the voltage of the first electrical connection end or the voltage of the second electrical connection end; the first relationship, the second relationship and the third relationship make the fourth relationship between the voltage of the first electrical connection end and the voltage of the second electrical connection end.

2. The voltage conversion circuit according to claim 1, characterized by The switch circuit comprises: a first switch component, the first switch component is electrically connected with the first electrical connection end, the second electrical connection end, the first storage component and the second storage component; a second switch component, the second switch component is electrically connected with the first electrical connection end, the second electrical connection end, the first switch component, the first storage component and the second storage component.

3. The voltage conversion circuit of claim 2, wherein, The first switch component and the second switch component are alternately turned on, in the first state, the first switch component is turned on, and the second switch component is turned off; in the second state, the second switch component is turned on, and the first switch component is turned off.

4. The voltage conversion circuit according to claim 2, characterized by The first switch component comprises a first switch unit, a second switch unit, a third switch unit, a fourth switch unit and a fifth switch unit; the second switch component comprises a sixth switch unit, a seventh switch unit, an eighth switch unit, a ninth switch unit and a tenth switch unit; the first end of the first switch unit is electrically connected with the first electrical connection end, and the second end of the first switch unit is electrically connected with the first end of the sixth switch unit and the first end of the first storage component; the first end of the second switch unit is electrically connected with the second end of the sixth switch unit and the first end of the second storage component, and the second end of the second switch unit is electrically connected with the second electrical connection end, the first end of the third switch unit, the first end of the seventh switch unit and the first end of the eighth switch unit; the second end of the third switch unit is electrically connected with the first end of the ninth switch unit, the second end of the first storage component and the second end of the second storage component; the first end of the fourth switch unit is electrically connected with the second end of the seventh switch unit, the third end of the first storage component and the third end of the second storage component, and the second end of the fourth switch unit is electrically connected with the second end of the ninth switch unit and a ground end; The first end of the fifth switch unit is electrically connected with the first end of the tenth switch unit and the fourth end of the first energy storage component, and the second end of the fifth switch unit is electrically connected with the second end of the eighth switch unit and the fourth end of the second energy storage component. The second end of the tenth switch unit is electrically connected with the first electrical connection end.

5. The voltage conversion circuit of claim 4, wherein, Each of the first switch unit, the second switch unit, the third switch unit, the fourth switch unit, the fifth switch unit, the sixth switch unit, the seventh switch unit, the eighth switch unit, the ninth switch unit and the tenth switch unit comprises: a first switch device; or, a plurality of second switch devices connected in series; or, a plurality of third switch devices connected in parallel.

6. The voltage conversion circuit of claim 4, wherein, The first energy storage component comprises a first energy storage unit and a second energy storage unit, and the second energy storage component comprises a third energy storage unit and a fourth energy storage unit. The first end of the first energy storage unit is electrically connected with the second end of the first switch unit and the first end of the sixth switch unit, and the second end of the first energy storage unit is electrically connected with the second end of the third switch unit, the first end of the ninth switch unit and the first end of the fourth energy storage unit. The first end of the second energy storage unit is electrically connected with the first end of the fifth switch unit and the first end of the tenth switch unit, and the second end of the second energy storage unit is electrically connected with the first end of the fourth switch unit, the second end of the seventh switch unit and the first end of the third energy storage unit. The second end of the third energy storage unit is electrically connected with the first end of the second switch unit and the second end of the sixth switch unit. The second end of the fourth energy storage unit is electrically connected with the second end of the fifth switch unit and the second end of the eighth switch unit.

7. The voltage conversion circuit of claim 6, wherein, Each of the first energy storage unit, the second energy storage unit, the third energy storage unit and the fourth energy storage unit comprises: a first capacitor; or, a plurality of second capacitors connected in series; or, a plurality of third capacitors connected in parallel.

8. The voltage conversion circuit of claim 7, wherein, Each of the energy storage units further comprises: a first inductor connected in series with the first capacitor; or, a plurality of second inductors, each of which is connected in series with one of the second capacitors; or, a plurality of third inductors, each of which is connected in series with one of the third capacitors.

9. The voltage conversion circuit of claim 1, wherein, The voltage conversion component further comprises: a voltage stabilizing capacitor, the first end of which is electrically connected with the first electrical connection end or the second electrical connection end, and the second end of which is electrically connected with the ground end.

10. The voltage conversion circuit according to any one of claims 1 to 9, characterized by, The voltage of the first electrical connection end is three times the voltage of the second electrical connection end.

11. The voltage conversion circuit according to any one of claims 1 to 9, characterized by, The voltage conversion circuit comprises a plurality of voltage conversion components connected in series; or, a plurality of voltage conversion components connected in parallel; or, a part of the voltage conversion components connected in parallel and connected in series with another part of the voltage conversion components.

12. A power management chip, characterized by, The voltage conversion circuit comprises any one of the voltage conversion circuits according to claims 1 to 11.

13. A system on chip, comprising: The voltage conversion circuit comprises any one of the voltage conversion circuits according to claims 1 to11.

14. An electronic device, comprising: A power management chip as claimed in claim 12 or a system-on-chip as claimed in claim 13.

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