CN115811040A

CN115811040A - Power supply circuit and electronic device

Info

Publication number: CN115811040A
Application number: CN202211514904.7A
Authority: CN
Inventors: 王荣华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-17

Abstract

The application discloses supply circuit and electronic equipment belongs to electronic equipment technical field. The power supply circuit is used for electronic equipment, and electronic equipment includes and supplies voltage component and load subassembly, and the power supply circuit includes: the input end of each power supply circuit is connected with the voltage supply assembly, the output end of each power supply circuit is connected with the load assembly, and the at least two power supply circuits are connected in parallel; a switch assembly connected with each power circuit; and the control circuit is connected with each power supply circuit, the switch assembly and the load assembly and is used for adjusting the working state of the switch assembly according to the load value of the load assembly so as to adjust the output current value.

Description

Power supply circuit and electronic device

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to a power supply circuit and electronic equipment.

Background

At present, in order to meet the higher load current requirement of a mobile phone processor, a multi-phase power supply is generally used for supplying power to the mobile phone processor in a parallel connection manner. However, the working condition of the mobile phone processor is complex, and the load current and the duration are dynamically adjusted and disordered, so that a scene of instantaneous change between a large load current and a small load current often appears.

Disclosure of Invention

An object of the embodiments of the present application is to provide a power supply circuit and an electronic device, which can adjust an output current value according to a load size, thereby reducing power supply loss and improving power supply efficiency.

In a first aspect, an embodiment of the present application provides a power supply circuit for an electronic device, where the electronic device includes a voltage supply component and a load component, and the power supply circuit includes: the input end of each power supply circuit is connected with the voltage supply assembly, the output end of each power supply circuit is connected with the load assembly, and the at least two power supply circuits are connected in parallel; a switch assembly connected to each power circuit; and the control circuit is connected with each power supply circuit, the switch assembly and the load assembly and is used for adjusting the working state of the switch assembly according to the load value of the load assembly so as to adjust the output current value.

In a second aspect, an embodiment of the present application provides an electronic device, which includes the power supply circuit according to the first aspect.

In a third aspect, embodiments of the present application provide an electronic device, which includes a processor and a memory, where the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the power supply method performed by the power supply circuit according to the first aspect.

In a fourth aspect, the present application provides a readable storage medium, on which a program or instructions are stored, and when executed by a processor, the program or instructions implement the power supply method executed by the power supply circuit of the first aspect.

In a seventh aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the power supply method executed by the power supply circuit of the first aspect.

In an eighth aspect, the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the power supply method performed by the power supply circuit of the first aspect.

The power supply circuit provided by the embodiment of the application is used for electronic equipment comprising a voltage supply assembly and a load assembly, and comprises at least two power supply circuits, a switch assembly and a control circuit. The input end of each power supply is connected with the voltage supply assembly, the output end of each power supply circuit is connected with the load assembly, and the at least two power supply circuits are connected in parallel. The switch assembly is connected with each power supply circuit, and the control circuit is connected with each power supply circuit, the load assembly and the switch assembly.

In the working process of the power supply circuit, the control circuit adjusts the working state of the switch assembly according to the load value of the load assembly, so that the series-parallel connection relation between each power supply circuit and each component in the power supply circuit is adjusted through the switch assembly, the total impedance value of at least two power supply circuits is adjusted, and the output current value is adjusted. Therefore, in the working process of the power supply circuit, the series-parallel connection relation between each power supply circuit and each component in the power supply circuit is adjusted by means of the switch assembly, the output current value can be adjusted based on the load size of the load assembly, the power supply requirements of the load assemblies with different load sizes on different load currents are met, the power supply loss is reduced, and the power supply efficiency is improved.

Drawings

Fig. 1 is a block diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 2 is a second block diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 4 is a second schematic structural diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 5 is a third schematic structural diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 6 is a fourth schematic structural diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 7 is a fifth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 8 is a sixth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 9 is a seventh schematic structural diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 10 is an eighth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 11 is a ninth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 12 is a tenth of a schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 13 is an eleventh schematic diagram illustrating a power supply circuit according to an embodiment of the present application;

fig. 14 is a twelfth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 15 is a thirteen schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 16 is a fourteenth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 17 is a fifteenth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 18 is a sixteenth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 19 is a seventeenth schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 20 is an eighteen schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 21 is a nineteenth schematic structural diagram of a power supply circuit according to an embodiment of the present disclosure;

fig. 22 is a twenty-first schematic structural diagram of a power supply circuit according to an embodiment of the present application;

fig. 23 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present disclosure;

fig. 24 is a second schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application;

fig. 25 is a third schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.

Reference numbers in fig. 1 to 22: 100 power supply circuit, 102 power supply circuit, 104 switch assembly, 106 control circuit, 108 first inductive element, 110 first switch group, 112 first switch, 114 second switch group, 116 second switch, 118 third switch group, 120 third switch, 122 detection circuit, 124 first sub-control circuit, 126 power supply switch, 128 second sub-control circuit, 130 first capacitor, 132 freewheeling diode, 134 second capacitor, 136 fourth switch, 200 electronic device, 202 voltage supply assembly, 204 load assembly.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application are capable of operation in sequences other than those illustrated or described herein, and that the terms "first," "second," etc. are generally used in a generic sense and do not limit the number of terms, e.g., a first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect through an intermediate medium, and the connection may be internal to the two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

The power supply circuit and the electronic device provided in the embodiments of the present application are described in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

An embodiment of a first aspect of the present application provides a power supply circuit.

As shown in fig. 1, an embodiment of the present application provides a power supply circuit 100, which is used for an electronic device 200 including a voltage supply component 202, a load component 204, and the power supply circuit 100. The power supply circuit 100 includes at least two power circuits 102, a switch assembly 104, and a control circuit 106.

The load component 204 is a processor, a speaker, a display, and other working devices in the electronic device 200, the voltage supply component 202 is configured to provide voltage to the power supply circuit 100, and the power supply circuit 100 is configured to perform integrated adjustment on the voltage provided by the voltage supply component 202 and output the integrated current to the load component 204, so as to provide an adapted load current to the load component 204, thereby meeting the charging requirement for the load component 204.

Further, as shown in fig. 1, the input terminal of each power circuit 102 is connected to the voltage supply component 202, the output terminal of each power circuit 102 is connected to the load component 204, and each two power circuits 102 are connected in parallel. Further, both the switch assembly 104 and the control circuit 106 are connected to each of the power circuits 102, and the control circuit 106 is also connected to the switch assembly 104 and the load assembly 204.

The power circuit 102 may be a Buck power, i.e., a step-down power circuit. In an actual application process, the output loading capacities of the power supply circuits 102 may be the same, and the output loading capacities of the power supply circuits 102 may also be different, which is not limited herein.

It will be appreciated that the load component 204, such as the processor in the electronic device 200, has a high load current requirement, and the processor is complex in operation, and the load current magnitude and duration are dynamically adjusted and disordered, so that the transient change of the small load current to the large load current, such as the transient change of the load current of mA level to the load current of a level, is often the case.

Therefore, in order to meet the complex power supply requirement of the processor, in the power supply circuit 100 provided in the embodiment of the present application, on one hand, power is supplied in a manner that the power supply circuits 102 are connected in parallel, so that distributed heat dissipation management is realized while the output current is increased, and the heat dissipation capability of the power supply circuit 100 is improved.

On the other hand, the switch assembly 104 is disposed in the power supply circuit 100, and during the operation of the power supply circuit 100, the control circuit 106 adjusts the operating state of the switch assembly 104 according to the load value of the load assembly 204, so as to adjust the series-parallel connection relationship between each power supply circuit 102 and each component therein through the switch assembly 104, thereby adjusting the total impedance value of at least two power supply circuits 102, so as to adjust the power supply condition of each power supply circuit 102 to the load assembly 204, and thus, adjust the output current value.

Specifically, in the case where the load value of the load component 204 is small, the load component 204 needs a small current value for power supply. At this time, the control circuit 106 adjusts the operating state of the switch assembly 104, so as to adjust the series-parallel connection relationship between each power circuit 102 and each component therein, so as to increase the impedance value in the power supply loop when supplying power to the load assembly 204, thereby reducing the output current value for supplying power to the load assembly 204, so as to reduce the power supply loss, and improve the current output efficiency.

On the other hand, when the load component 204 has a large load value, the load component 204 needs a large current value to supply power. At this time, the control circuit 106 adjusts the operating state of the switch assembly 104, so as to adjust the series-parallel connection relationship between each power circuit 102 and each component therein, so as to reduce the impedance value in the power supply loop when supplying power to the load assembly 204, thereby increasing the output current value for supplying power to the load assembly 204.

That is to say, in the power supply circuit 100 provided in the embodiment of the present application, in the working process of the power supply circuit 100, the series-parallel connection relationship between each power supply circuit 102 and each component therein is adjusted by the switch assembly 104, the magnitude of the output current value of the power supply loop can be adjusted based on the magnitude of the load value of the load assembly 204, the power supply requirements of the load assemblies 204 with different load magnitudes on different load currents are met, the power supply loss is reduced, and the power supply efficiency is improved.

In the present embodiment, each power supply circuit 102 comprises a first inductive element 108, as shown in fig. 3.

The input end of the first inductive element 108 is connected to the voltage supply component 202, and the output end of the first inductive element 108 is connected to the load component 204.

During the operation of the power supply circuit 100, the first inductive element 108 can convert electric energy into magnetic energy for storage, and also can convert the magnetic energy into electric energy for releasing again, and through the energy conversion of the first inductive element 108, the power supply circuit 100 provides electric energy to the load component 204 for power supply.

Further, the first inductive element 108 may be a power inductor. In practical applications, the models of the first inductive elements 108 in each power supply circuit 102 are the same, or the models of the first inductive elements 108 in each power supply circuit 102 are different. That is, the inductive reactance values of the first inductive elements 108 in the power supply circuits 102 are the same, or the inductive reactance values of the first inductive elements 108 in the power supply circuits 102 are different, and are not limited in particular.

On this basis, during the operation of the power supply circuit 100, the control circuit 106 may specifically adjust the operating state of the switch assembly 104 according to the load value of the load assembly 204, so as to adjust the connection relationship between the first inductive elements 108 in the at least two power supply circuits 102, so as to adjust the output current value of the power supply loop by adjusting the total impedance value of the at least two power supply circuits 102.

Specifically, in the process of supplying power to the load component 204 through the power supply circuit 100, when the load value of the load component 204 is small, the load component 204 needs a small current value to supply power. At this time, the connection state between the first inductive element 108 and the load component 204 in each power circuit 102 is adjusted by adjusting the operating state of the switch component 104, so as to increase the inductive reactance value in the power supply loop when the load component 204 is powered, thereby reducing the output current value for powering the load component 204, reducing the power supply loss, and improving the current output efficiency.

On the other hand, when the load component 204 has a large load value, the load component 204 needs a large current value to supply power. At this time, the connection state between the first inductive element 108 and the load component 204 in each power circuit 102 is adjusted by adjusting the operating state of the switch component 104, so as to reduce the inductive reactance value in the power supply loop when the load component 204 is powered, thereby increasing the output current value for powering the load component 204.

That is to say, in the power supply circuit 100 provided in the embodiment of the present application, during the operation of the power supply circuit, the connection state between the first inductive element 108 and the load component 204 in each power supply circuit 102 is adjusted according to the magnitude of the load value of the load component 204, so as to adjust the output current value by adjusting the magnitude of the inductive reactance value in the power supply loop, thereby meeting the power supply requirements of the load components 204 with different load magnitudes for different load currents, reducing the power supply loss, and improving the power supply efficiency.

In the embodiment of the present application, as shown in fig. 3, each power circuit 102 further includes a power switch 126.

Wherein the input terminal of the first inductive element 108 in each power circuit 102 is connected to the voltage supply component 202 through the power switch 126. That is, a first terminal of each power switch 126 is connected to the voltage supply assembly 202, and a second terminal of each power switch 126 is connected to the first inductive element 108 in the power circuit 102 where it is located.

Further, a third terminal of each power switch 126 is connected to the control circuit 106. During the operation of the power supply circuit 100, the control circuit 106 may control on/off of the power switch 126 in each power circuit 102 to control whether the voltage supply component 202 supplies voltage or current to the power circuit 102 where the power switch 126 is located, so as to control whether the power circuit 102 supplies power to the load component 204. Meanwhile, the switching loss in the power supply process can be adjusted by controlling the on-off of each power switch 126.

In practical applications, the power switch 126 may be a P-type MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), an N-type MOSFET, or the like, and is not limited thereto.

In the embodiment of the present application, as shown in fig. 3 and 4, the switch assembly 104 includes a first switch set 110 and a second switch set 114, the first switch set 110 includes at least two first switches 112, and the second switch set 114 includes at least one second switch 116.

First ends of the at least two first switches 112 are connected to output ends of the first inductive elements 108 in the at least two power circuits 102 in a one-to-one correspondence, and a second end of each first switch 112 is connected to the load component 204. That is to say, a first switch 112 is disposed between each power circuit 102 and the load component 204, and the connection state between each power circuit 102 and the load component 204 can be adjusted by controlling the on/off of the first switch 112, so as to control whether each power circuit 102 transmits electric energy to the load component 204, so as to adjust the magnitude of the output current value.

Further, a first terminal of the second switch 116 is connected to the output terminal of the first inductive element 108 of the first power circuit of the at least two power circuits 102, and a second terminal of the second switch 116 is connected to the input terminal of the first inductive element 108 of the second power circuit of the at least two power circuits 102. The first power supply circuit and the second power supply circuit are any two power supply circuits of the at least two power supply circuits 102.

Illustratively, as shown in fig. 3, the second switch set 114 includes two second switches 116. Wherein, a first end of a second switch 116 is connected to the output end of the first inductive element 108 in the power circuit 102 where Buck1 is located, and a second end of the second switch 116 is connected to the input end of the first inductive element 108 in the power circuit 102 where Buck2 is located; a first terminal of another second switch 116 is connected to the output terminal of the first inductive element 108 in the power supply circuit 102 with Buck2, and a second terminal of the second switch 116 is connected to the input terminal of the first inductive element 108 in the power supply circuit 102 with Buck 3.

Alternatively, as shown in fig. 4, the second switch group 114 includes two second switches 116. Wherein, a first end of a second switch 116 is connected to the output end of the first inductive element 108 in the power circuit 102 where Buck1 is located, and a second end of the second switch 116 is connected to the input end of the first inductive element 108 in the power circuit 102 where Buck3 is located; a first terminal of another second switch 116 is connected to the output terminal of the first inductive element 108 in the power supply circuit 102 with Buck3, and a second terminal of the second switch 116 is connected to the input terminal of the first inductive element 108 in the power supply circuit 102 with Buck 2.

That is, the second switch 116 is disposed between any two power circuits 102, and the first inductive element 108 of the two power circuits 102 can be controlled to be connected in series or in parallel by controlling the on/off of the second switch 116 and the first switch 112. In this way, the range of the inductive reactance value of the power supply circuit 100 is increased, so that the range of the output current value of the power supply circuit 100 is increased, and the power supply requirements of the load components 204 with different load sizes for different load currents are further met.

Specifically, in the process of supplying power to the load component 204 through the power supply circuit 100, when the load value of the load component 204 is small, the inductive reactance value in the power supply loop when supplying power to the load component 204 is increased by adjusting the on/off of each first switch 112 in the first switch group 110 and adjusting the on/off of each second switch 116 in the second switch group 114, so as to reduce the output current value for supplying power to the load component 204. Meanwhile, it can be understood that the inductive reactance value of the power circuit 102 is inversely proportional to the frequency of the power switch 126, and by increasing the inductive reactance value of the power circuit 102, the switching loss in the power supply process can be reduced, thereby improving the current output efficiency. On the other hand, when the load value of the load component 204 is large, the on/off of each of the first switches 112 in the first switch group 110 and each of the second switches 116 in the second switch group 114 is adjusted to reduce the inductive reactance value in the power supply loop when the load component 204 is powered, thereby increasing the output current value for powering the load component 204.

When the inductance values of the first inductive elements 108 in the power supply circuits 102 are the same, the connection manner of the first inductive elements 108 in the power supply circuits 102 can be adjusted to be parallel or serial by adjusting the on/off of the first switches 112 in the first switch group 110 and the second switches 116 in the second switch group 114, and the number of the parallel or serial first inductive elements 108 can be adjusted to adjust the magnitude of the inductance value of the power supply circuit 100, so as to adjust the output current value. When the inductance values of the first inductive elements 108 in the power supply circuits 102 are different, the load component 204 may be powered by using a single power supply circuit 102 with different inductance values by adjusting the on/off of the first switches 112 in the first switch group 110 and the second switches 116 in the second switch group 114, in addition to adjusting the connection mode of the first inductive elements 108 and the number of the first inductive elements 108 connected in parallel or in series.

Specifically, in practical applications, when the load value of the load component 204 is small, the first inductive element 108 with a larger inductive reactance value may be preferentially used to supply power to the load component 204. As the load value of the load component 204 decreases, that is, as the supply current required by the load component 204 decreases, the first inductive elements 108 are connected in series one by adjusting the on/off of each first switch 112 in the first switch group 110 and each second switch 116 in the second switch group 114 until all the first inductive elements 108 are connected in series, so as to gradually increase the inductive reactance value of the supply loop as the load value of the load component 204 decreases, thereby gradually decreasing the output current value. When the load component 204 has a large load value, the first inductive element 108 with a small inductive reactance value may be preferentially used to supply power to the load component 204. As the load value of the load component 204 increases, that is, as the supply current required by the load component 204 increases, the first inductive elements 108 are connected in parallel one by adjusting the on/off of each first switch 112 in the first switch group 110 and each second switch 116 in the second switch group 114 until all the first inductive elements 108 are connected in parallel, so as to gradually decrease the inductive reactance value of the supply loop as the load value of the load component 204 increases, thereby gradually increasing the output current value.

Illustratively, as shown in fig. 5, the voltage supply component 202 provides an initial voltage Vin to the power supply circuit, and the power supply circuit processes the initial voltage Vin according to the load value of the load component 204 and provides a required power supply voltage Vout to the load component 204. Specifically, the power supply circuit includes a first power supply circuit Buck1, a second power supply circuit Buck2, a third power supply circuit Buck3, an output capacitor C1, an input capacitor C2, a first sub-switch S1, a second sub-switch S2, a third sub-switch S3, a fourth sub-switch S4, and a fifth sub-switch S5. The first power circuit Buck1 comprises a first power switch Q1, a first follow current tube D1 and a first inductor L1, the second power circuit Buck2 comprises a second power switch Q2, a second follow current tube D2 and a second inductor L2, and the third power circuit Buck3 comprises a third power switch Q3, a third follow current tube D3 and a third inductor L3. The first sub-switch S1 is connected between the first inductor L1 and the load component 204, the second sub-switch S2 is connected between the second inductor L2 and the load component 204, the third sub-switch S3 is connected between the third inductor L3 and the load component 204, the fourth sub-switch S4 is connected between the second end of the first inductor L1 and the first end of the second inductor L2, and the fifth sub-switch S5 is connected between the second end of the second inductor L2 and the first end of the third inductor L3. Further, the loading capacity of the first power supply circuit Buck1 is smaller than that of the second power supply circuit Buck2, and the loading capacity of the second power supply circuit Buck2 is smaller than that of the third power supply circuit Buck 3; the inductive reactance value of the first inductor L1 is larger than that of the second inductor L2, and the inductive reactance value of the second inductor L2 is larger than that of the third inductor L3. Specifically, the output voltage of the voltage supply assembly 202 is 3V to 6V, the inductance value of the first inductor L1 is 3 ohm to 4 ohm, the inductance value of the second inductor L2 is 2 ohm to 3 ohm, and the inductance value of the third inductor L3 is 1 ohm to 2 ohm.

On the basis, when the load value of the load component 204 is detected to be small, the load current required by the load component 204 is small, the switching loss ratio of the power switch is large, and the output efficiency of the power circuit is low. At this time, without considering other circuit losses, as shown in fig. 6, the control circuit 106 controls the first power switch Q1 and the first sub-switch S1 to be turned on, and controls the second power switch Q2, the third power switch Q3, the second sub-switch S2, the third sub-switch S3, the fourth sub-switch S4, and the fifth sub-switch S5 to be turned off, that is, the control circuit 106 preferentially controls the first power circuit Buck1 with a smaller load carrying capacity and the first inductor L1 with a larger inductive reactance value to supply power to the load component 204. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value is 2 ohm to 3 ohm, and the output current is 1A to 3A. Based on this, if the load value of the load component 204 continues to decrease, at this time, as shown in fig. 7, the control circuit 106 controls the first sub-switch S1 to be turned off, and at the same time, the control circuit 106 controls the third sub-switch S3, the fourth sub-switch S4 and the fifth sub-switch S5 to be turned off, so that the first inductor L1, the second inductor L2 and the third inductor L3 are connected in series. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value becomes 6 ohm to 9 ohm, and the output current becomes 0.33A to 1A. Like this, supply power to load component 204 through the series circuit that first power switch Q1, first inductance L1, second inductance L2 and third inductance L3 constitute, increased the inductance value in power supply loop, when having reduced output current value, reduced switching loss, promoted power supply circuit's output efficiency.

In the case where the load value of the load component 204 is detected to be large, the load current required by the load component 204 is large. At this time, when the other circuit losses are not considered, as shown in fig. 8, the control circuit 106 controls the third power switch Q3 and the third sub-switch S3 to be on, and at the same time, the control circuit 106 controls the second power switch Q2, the first power switch Q1, the second sub-switch S2, the first sub-switch S1, the fourth sub-switch S4, and the fifth sub-switch S5 to be off, that is, the control circuit 106 preferentially controls the third power circuit Buck3 with a large load capacity and the third inductor L3 with a small inductance value to supply power to the load component 204. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value is 1 ohm to 2 ohm, and the output current is 1.5A to 6A. Based on this, if the load value of the load component 204 continues to increase, at this time, as shown in fig. 9, the control circuit 106 controls the first power switch Q1, the second power switch Q2, the first sub-switch S1, and the second sub-switch S2 to be turned on, so that the parallel loop formed by the first power circuit Buck1, the second power circuit Buck2, and the third power circuit Buck3 supplies power to the load component 204. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value is about 0.5 ohm to 1 ohm, and the output current is about 3A to 12A. Therefore, the load capacity of the power supply circuit is increased, and the inductive reactance value of the power supply circuit is reduced, so that the transient response speed of the load is increased while the output current value is increased, and the quick response capacity of the output of the power supply circuit is improved.

In practical applications, as shown in fig. 10, the switch assembly 104 may also include only the first switch set 110. At this time, the load capacity of each power supply circuit 102 is different, and the impedance value, i.e., the inductive reactance value, of first inductive element 108 in each power supply circuit 102 is different. During the operation of the power supply circuit, the on/off of each first switch 112 in the first switch group 110 is controlled according to the load value of the load component 204, so that different power circuits 102 and the first inductive element 108 are used to supply power to the load component 204.

Illustratively, as shown in fig. 11, the power supply circuit includes a first power supply circuit Buck1, a second power supply circuit Buck2, a third power supply circuit Buck3, an output capacitor C1, an input capacitor C2, a first sub-switch S1, a second sub-switch S2, and a third sub-switch S3. The first power circuit Buck1 comprises a first power switch Q1, a first follow current tube D1 and a first inductor L1, the second power circuit Buck2 comprises a second power switch Q2, a second follow current tube D2 and a second inductor L2, and the third power circuit Buck3 comprises a third power switch Q3, a third follow current tube D3 and a third inductor L3. The first sub-switch S1 is connected between the first inductor L1 and the load component 204, the second sub-switch S2 is connected between the second inductor L2 and the load component 204, and the third sub-switch S3 is connected between the third inductor L3 and the load component 204. Furthermore, the loading capacity of the first power circuit Buck1 is smaller than that of the second power circuit Buck2, and the loading capacity of the second power circuit Buck2 is smaller than that of the third power circuit Buck 3; the inductive reactance value of the first inductor L1 is larger than that of the second inductor L2, and the inductive reactance value of the second inductor L2 is larger than that of the third inductor L3.

On the basis, when the load value of the load component 204 is detected to be small, the load current required by the load component 204 is small, the switching loss ratio of the power switch is large, and the output efficiency of the power circuit is low. At this time, as shown in fig. 12, the first power switch Q1 and the first sub-switch S1 are turned off, and the second power switch Q2, the third power switch Q3, the second sub-switch S2, and the third sub-switch S3 are turned off, that is, the first power circuit Buck1 with a small load capacity and the first inductor L1 with a large inductance value are used to supply power to the load component 204, so that the inductance value of the power supply loop is increased, the output current value is reduced, the switching loss is reduced, and the output efficiency of the power circuit is improved.

In the case where the load value of the load component 204 is detected to be large, the load current required by the load component 204 is large. At this time, as shown in fig. 13, the first power switch Q1, the second power switch Q2, and the third power switch Q3 are turned on, and the first sub-switch S1, the second sub-switch S2, and the third sub-switch S3 are turned off, so that the first power circuit Buck1, the second power circuit Buck2, and the third power circuit Buck3 are connected in parallel. Therefore, the load capacity of the power supply circuit is increased, the inductive reactance value of the power supply circuit is reduced, the transient response speed of the load is increased while the output current value is increased, and the quick response capacity of the output of the power supply circuit is improved.

In the present embodiment, as shown in fig. 14 and 15, the switch assembly 104 further includes a third switch set 118, and the third switch set 118 further includes at least one third switch 120.

Wherein a first terminal of each third switch 120 is connected to an input terminal of the first inductive element 108 of a third power supply circuit of the at least two power supply circuits 102 and a second terminal of each third switch 120 is connected to an input terminal of the first inductive element 108 of a fourth power supply circuit of the at least two power supply circuits. The third power supply circuit and the fourth power supply circuit are any two power supply circuits 102 in the at least two power supply circuits 102.

Illustratively, as shown in fig. 14, the third switch set 118 includes two third switches 120. Wherein, a first end of a third switch 120 is connected to the input end of the first inductive element 108 in the power circuit 102 where Buck1 is located, and a second end of the third switch 120 is connected to the input end of the first inductive element 108 in the power circuit 102 where Buck2 is located; a first terminal of another third switch 120 is connected to the input terminal of the first inductive element 108 in the power circuit 102 with Buck2, and a second terminal of the third switch 120 is connected to the input terminal of the first inductive element 108 in the power circuit 102 with Buck 3.

Alternatively, as shown in fig. 15, the third switch group 118 includes two third switches 120. Wherein, a first end of a third switch 120 is connected to the input end of the first inductive element 108 in the power circuit 102 where Buck1 is located, and a second end of the third switch 120 is connected to the input end of the first inductive element 108 in the power circuit 102 where Buck3 is located; a first terminal of another third switch 120 is connected to the input terminal of the first inductive element 108 in the power circuit 102 with Buck3, and a second terminal of the third switch 120 is connected to the input terminal of the first inductive element 108 in the power circuit 102 with Buck 2.

That is to say, the third switch 120 is disposed between any two power circuits 102, and by controlling the on/off of the third switch 120 and the first switch 112 and the second switch 116, the connection manner of the first inductive element 108 in different power circuits 102 can be adjusted, and the connection manner of the first inductive element 108 and the power switch 126 in different power circuits 102 can also be adjusted, so that the output current value range is further increased, and the power supply requirements of the load components 204 with different load sizes for different load currents are met.

Specifically, when the load value of the load component 204 is small, the inductance value in the power supply loop when the load component 204 is supplied with power is increased by controlling the on/off of the third switch 120 and the first switch 112 and the second switch 116, so that the output current value for supplying power to the load component 204 is reduced, and the switching loss is reduced. On the other hand, when the load value of the load component 204 is large, the inductance value in the power supply circuit when the load component 204 is supplied with power is reduced by controlling the on/off of the third switch 120 and the first switch 112 and the second switch 116, so that the output current value for supplying power to the load component 204 is increased.

When the inductance values of the first inductive elements 108 in the power supply circuits 102 are the same, the connection manner of the first inductive elements 108 in different power supply circuits 102 and the power switch 126, and the number of the first inductive elements 108 connected in parallel or in series can be adjusted by controlling the on/off of the third switch 120 and the first switch 112 and the second switch 116, so as to adjust the magnitude of the inductance value of the power supply circuit 100. When the inductance values of the first inductive elements 108 in the power supply circuits 102 are different, the load component 204 may be powered by a single power supply circuit 102 by controlling the on/off of the third switch 120 and the first and

second switches

112 and 116, in addition to the above adjustment method.

Specifically, in practical applications, when the load value of the load component 204 is small, the first inductive element 108 with a larger inductive reactance value may be preferentially used to supply power to the load component 204. As the load value of the load component 204 decreases, that is, as the supply current required by the load component 204 decreases, the first inductive elements 108 are connected in series one by adjusting the on/off of each of the first switch 112, the second switch 116, and the third switch 120 until all the first inductive elements 108 are connected in series, so as to gradually increase the inductive reactance value of the supply loop and gradually decrease the output current value as the load value of the load component 204 decreases. When the load component 204 has a large load value, the first inductive element 108 with a small inductive reactance value may be preferentially used to supply power to the load component 204. As the load value of the load component 204 increases, that is, as the supply current required by the load component 204 increases, the first inductive elements 108 are connected in parallel one by adjusting the on/off of each of the first switch 112, the second switch 116, and the third switch 120 until all the first inductive elements 108 are connected in parallel, so as to gradually decrease the inductive reactance value of the supply loop and gradually increase the output current value as the load value of the load component 204 increases.

Illustratively, as shown in fig. 16, the power supply circuit includes a first power supply circuit Buck1, a second power supply circuit Buck2, a third power supply circuit Buck3, an output capacitor C1, an input capacitor C2, a first sub-switch S1, a second sub-switch S2, a third sub-switch S3, a fourth sub-switch S4, a fifth sub-switch S5, a sixth sub-switch S6, and a seventh sub-switch S7. The first power circuit Buck1 comprises a first power switch Q1, a first follow current tube D1 and a first inductor L1, the second power circuit Buck2 comprises a second power switch Q2, a second follow current tube D2 and a second inductor L2, and the third power circuit Buck3 comprises a third power switch Q3, a third follow current tube D3 and a third inductor L3. The loading capacity of the first power supply circuit Buck1 is smaller than that of the second power supply circuit Buck2, and the loading capacity of the second power supply circuit Buck2 is smaller than that of the third power supply circuit Buck 3; the inductive reactance value of the first inductor L1 is smaller than that of the second inductor L2, and the inductive reactance value of the second inductor L2 is smaller than that of the third inductor L3. Specifically, the output voltage of the voltage supply assembly 202 is 3V to 6V, the inductance value of the first inductor L1 is 1 ohm to 2 ohms, the inductance value of the second inductor L2 is 2 ohms to 3 ohms, and the inductance value of the third inductor L3 is 3 ohms to 4 ohms.

Further, the first sub-switch S1 is connected between the first inductor L1 and the load component 204, the second sub-switch S2 is connected between the second inductor L2 and the load component 204, the third sub-switch S3 is connected between the third inductor L3 and the load component 204, the fourth sub-switch S4 is connected between the second end of the first inductor L1 and the first end of the second inductor L2, the fifth sub-switch S5 is connected between the second end of the second inductor L2 and the first end of the third inductor L3, the sixth sub-switch S6 is connected between the first end of the first inductor L1 and the first end of the second inductor L2, and the seventh sub-switch S7 is connected between the first end of the second inductor L2 and the first end of the third inductor L3.

On the basis, when the load value of the load component 204 is detected to be small, the load current required by the load component 204 is small, the switching loss ratio of the power switch is large, and the output efficiency of the power circuit is low. At this time, when the other circuit losses are not considered, as shown in fig. 17, the control circuit 106 controls the first power switch Q1, the sixth sub-switch S6, the seventh sub-switch S7, and the third sub-switch S3 to be turned on, and at the same time, the control circuit 106 controls the second power switch Q2, the third power switch Q3, the first sub-switch S1, the second sub-switch S2, the fourth sub-switch S4, and the fifth sub-switch S5 to be turned off, that is, the control circuit 106 preferentially controls the first power circuit Buck1 with a small load carrying capacity and the third inductor L3 with a large inductance value to supply power to the load component 204. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value is 3 ohm to 4 ohm, and the output current is 0.75A to 2A. Based on this, if the load value of the load component 204 continues to decrease, at this time, as shown in fig. 18, the control circuit 106 controls the fourth sub-switch S4 and the fifth sub-switch S5 to be turned off, and at the same time, the control circuit 106 controls the sixth sub-switch S6 and the seventh sub-switch S7 to be turned on, so that the first power switch Q1, the first inductor L1, the second inductor L2 and the third inductor L3 are connected in series. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value becomes 6 ohm to 9 ohm, and the output current becomes 0.33A to 1A. Like this, supply power to load component 204 through the series circuit that first power switch Q1, first inductance L1, second inductance L2 and third inductance L3 constitute, increased power supply loop's inductance value, when having reduced output current value, reduced switching loss, promoted power supply circuit's output efficiency.

In the case where the load value of the load component 204 is detected to be large, the load current required by the load component 204 is large. At this time, when the other circuit losses are not taken into consideration, as shown in fig. 19, the control circuit 106 controls the third power switch Q3, the sixth sub-switch S6, the seventh sub-switch S7, and the first sub-switch S1 to be turned on, and at the same time, the control circuit 106 controls the second power switch Q2, the first power switch Q1, the third sub-switch S3, the second sub-switch S2, the fourth sub-switch S4, and the fifth sub-switch S5 to be turned off, that is, the control circuit 106 preferentially controls the third power circuit Buck3 with a large load carrying capacity and the first inductor L1 with a small inductance value to supply power to the load device 204. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value is 1 ohm to 2 ohm, and the output current is 1.5A to 6A. Based on this, if the load value of the load component 204 continues to increase, at this time, as shown in fig. 20, the control circuit 106 controls the second sub-switch S2 and the third sub-switch S3 to be turned off, so that the first inductor L1, the second inductor L2 and the third inductor L3 are connected in parallel and then connected in series with the third power switch Q3. At this time, the input voltage of the power supply circuit is 3V to 6V, the impedance value is about 0.5 ohm to 1 ohm, and the output current is about 3A to 12A. Therefore, the load capacity of the power supply circuit is increased, the inductive reactance value of the power supply circuit is reduced, the transient response speed of the load is increased while the output current value is increased, and the quick response capacity of the output of the power supply circuit is improved.

Further, on the basis of the power supply circuit shown in fig. 20, if the load value of the load component 204 continues to increase, at this time, as shown in fig. 21, the control circuit 106 controls the sixth sub-switch S6 and the seventh sub-switch S7 to be turned on, and at the same time, the control circuit 106 controls the first power switch Q1 and the second power switch Q2 to be turned on, so that the first power circuit Buck1, the second power circuit Buck2 and the third power circuit Buck3 are connected in parallel, so as to increase the loading capability of the power supply circuit.

In the embodiment of the present application, as shown in fig. 2 and 3, the control circuit 106 includes a detection circuit 122.

The detection circuit 122 is connected to the load component 204, and the detection circuit 122 is configured to detect a load value of the load component 204. In practical applications, the detection circuit 122 may directly detect the impedance value of the load component 204, and may also determine the impedance value of the load component 204 by detecting the current value of the load component 204, which is not limited in this respect.

Further, as shown in fig. 2 and fig. 3, the control circuit 106 further includes a first sub-control circuit 124, the first sub-control circuit 124 is connected to the detection circuit 122 and the switch assembly 104, and the first sub-control circuit 124 is configured to adjust an operating state of the switch assembly 104 according to a load value of the load assembly 204, so as to adjust a connection relationship between the at least two power circuits 102 by adjusting on/off of each switch in the switch assembly 104, thereby achieving an objective of adjusting a total impedance value of the at least two power circuits 102.

Specifically, when the load value of the load component 204 is small, it is described that the load component 204 needs a small current value to supply power. At this time, the first sub-control circuit 124 adjusts the operating state of the switch component 104 to increase the impedance value in the power supply loop when supplying power to the load component 204, so as to reduce the output current value for supplying power to the load component 204, reduce the power supply loss, and improve the current output efficiency. On the other hand, when the load value of the load component 204 is large, it is described that the load component 204 needs a large current value to supply power. At this time, the first sub-control circuit 124 adjusts the operating state of the switch element 104 to reduce the impedance value in the power supply loop when supplying power to the load element 204, so as to increase the output current value for supplying power to the load element 204.

That is to say, in the power supply circuit 100 provided in the embodiment of the present application, during the operation of the power supply circuit, the first sub-control circuit 124 controls the switches in the switch component 104 to be turned on or off according to the magnitude of the load value of the load component 204, so that the impedance value, such as the inductive reactance value, in the power supply circuit changes with the change of the load value of the load component 204, and thus the output current value corresponds to the load value of the load component 204, the power supply requirements of the load components 204 with different load magnitudes for different load currents are met, the power supply loss is reduced, and the power supply efficiency is improved.

In the embodiment of the present application, as shown in fig. 2 and 3, the control circuit 106 further includes a second sub-control circuit 128. Wherein the second sub-control circuit 128 is connected to the detection circuit 122 and the power switch 126 in each power circuit 102.

During the process of supplying power to the load component 204, the second sub-control circuit 128 is configured to control the power switch 126 to be turned on or off according to the load value of the load component 204, so as to control whether the voltage supply component 202 supplies voltage or current to the power circuit 102 where the power switch 126 is located, so as to control whether the power circuit 102 supplies power to the load component 204.

That is, the second sub-control circuit 128 controls the on/off of each power switch 126 to select different power circuits 102 to supply power to the load component 204. Meanwhile, the switching loss in the power supply process can be adjusted by controlling the on-off of each power switch 126.

In the embodiment of the present application, as shown in fig. 3, the power supply circuit 100 further includes a first capacitor 130, and each power supply circuit 102 further includes a freewheeling diode 132.

A first end of the first capacitor 130 is connected to the output end of the first inductive element 108 in each power circuit 102, and a second end of the first capacitor 130 is grounded.

Further, the anode of the freewheeling diode 132 is connected to ground, and the cathode of the freewheeling diode 132 is connected to the input of the first inductive element 108 in the power circuit 102.

During operation of the power supply circuit, the first capacitor 130, the freewheeling diode 132 and the first inductive element 108 in each power circuit 102 form a freewheeling circuit to ensure that the power supply circuit 100 can continuously supply power to the load component 204.

Specifically, for each power circuit 102, when the power switch 126 is turned on, the first inductor L1 element converts the received electric energy into magnetic energy for storage, the current of the first inductor L1 element increases, and supplies current to the load component 204, and at the same time supplies current to the first capacitor 130. When the power switch 126 is turned off, the first inductive element 108 converts the stored magnetic energy into electric energy and releases the electric energy again, so that the current of the first inductive element 108 decreases. At the same time, the first capacitor 130 is discharged, and the power supply circuit 100 continues to supply power to the load component 204 through a current loop formed by the first capacitor 130, the first inductive element 108 and the freewheeling diode 132.

In addition, in practical applications, as shown in fig. 3, the power supply circuit 100 may further include a second capacitor 134, a first terminal of the second capacitor 134 is connected to the power supply component, and a second terminal of the second capacitor 134 is connected to ground. In the working process of the power supply circuit, the current input to each power supply circuit 102 by the voltage supply component 202 is filtered by the second capacitor 134 to filter out the alternating current component in the current, so as to ensure the stable operation of each power supply circuit 102.

In summary, the power supply circuit 100 provided in the embodiment of the present application implements the array combination of the plurality of first inductive elements 108 in the power supply circuit 100 by providing the switch component 104 in the power supply circuit 100, so as to increase the range of the inductive reactance value and the range of the output current value of the power supply circuit 100. Under the condition that the load value of the load component 204 is small, the inductive reactance value of the power supply circuit 100 is increased by controlling the on/off of each switch in the switch component 104 to reduce the output current value and reduce the switching frequency of the power switch 126, so that the switching loss of the power circuit 102 is reduced and the output efficiency is improved. Under the condition that the load value of the load component 204 is large, the inductive reactance value of the power supply circuit 100 is reduced by controlling the on-off of each switch in the switch component 104, so as to increase the output current value and improve the transient response speed of the load, thereby improving the quick response capability of the output end of the power supply circuit 100.

In practical applications, the flexibility of combining the first inductive elements 108 can be improved by further adding switches to the power supply circuit, so as to further increase the range of the inductive reactance value and the range of the output current value of the power supply circuit 100.

For example, as shown in fig. 22, the power supply circuit 100 may further include at least one fourth switch 136. The first end of each fourth switch 136 is connected to the input end of the first inductive element 108 in one power supply circuit 102, the second end of each fourth switch 136 is connected to the output end of the first inductive element 108 in another power supply circuit 102, and the combination mode of each component in the power supply circuit 100 is further increased by controlling the on/off of the fourth switch 136, so that the inductive reactance value range and the output current value range of the power supply circuit 100 are increased.

In practical applications, the first inductive element 108 may also be a tapped power inductor, and the control circuit 106 may adjust the operating state of the first inductive element 108 to realize the conversion of the inductive reactance value of the power inductor.

An embodiment of a second aspect of the present application proposes an electronic device. As shown in fig. 23, an embodiment of the present application further provides an electronic device 2300, where the electronic device 2300 includes the power supply circuit 100 of the first aspect. Therefore, the electronic device 2300 has all the advantages of the power supply circuit 100 of the first aspect, and will not be described herein again.

In the embodiment of the present application, as shown in fig. 23, the electronic device 2300 further includes an acquisition unit 2302, a processing unit 2304, and a control unit 2306.

The obtaining unit 2302 is configured to obtain a load value of a load component, where the load value is an impedance value of the load component in a power supply process.

In an actual application process, the obtaining unit 2302 may directly obtain the impedance value of the load component, and may also obtain the impedance value of the load component by detecting the current value of the load component. The method for acquiring the load value of the load component may be selected by a person skilled in the art according to practical situations, and is not limited in particular.

Further, the processing unit 2304 is configured to determine a target current value required by the load component according to the load value of the load component, determine a corresponding target impedance value according to the determined target current value, and determine an operating state of each switch in the switch component according to the determined target impedance value.

Specifically, after the obtaining unit 2302 obtains the load value of the load component, the processing unit 2304 determines a target current value required by the load component according to the magnitude of the load value of the load component, and further determines a target impedance value required by the power supply circuit 100 to input the target current value. On the basis, the processing unit 2304 determines the operating state of each switch in the switch assembly of the power supply circuit 100 according to the determined target impedance value, so that when each switch in the switch assembly operates in the corresponding operating state, the total impedance value of the power supply circuit 100 is close to or consistent with the target impedance value, and the current value output by the power supply circuit 100 is equal to or close to the target current value.

The target current value corresponds to a load value of the load component, and the target current value is a current value required when the load component is powered. In an actual application process, when the processing unit 2304 determines the target current value, the processing unit 2304 may determine the target current value by directly detecting a current value of the load component, and may also detect an impedance value of the load component, and further determine a corresponding target current value according to the impedance value of the load component and the RCL circuit principle. The determination method of the target current value may be selected by a person skilled in the art according to practical situations, and is not particularly limited herein.

Further, the control unit 2306 is configured to control each switch in the switch assembly to be opened or closed according to the determined operating state of each switch in the switch assembly, and adjust a connection relationship between each component in the power supply circuit 100 and the load assembly to adjust the impedance value of the power supply circuit 100 to the target impedance value, so as to adjust the output current value of the power supply circuit 100 to the target current value. Therefore, in the working process of the electronic equipment, the impedance value of the power supply circuit in the electronic equipment can be adjusted according to the load value of the load component in the electronic equipment, so that the impedance value of the power supply circuit, the output current value of the power supply circuit and the load value of the load component are mutually matched, the power supply requirements of the load components with different load sizes on different load currents are met, the power supply loss is reduced, and the power supply efficiency is improved.

In the embodiment of the present application, the control unit 2306 is further configured to: and adjusting the working state of each power switch in the power supply circuit according to the load value of the load component.

Specifically, in the process that the power supply circuit 100 in the electronic device 2300 supplies power to the load component in the electronic device 2300, the control unit 2306 may further adjust the operating state of each power switch in the power supply circuit 100 according to the load value of the load component, that is, control each power switch to be turned on or off, so as to control whether the voltage supply component in the electronic device 2300 supplies voltage or current to the power circuit where the power switch is located, so as to control whether the power circuit supplies power to the load component.

That is, by controlling the on/off of each power switch, different power circuits are selected to supply power to the load component, so that the output current value range of the power supply circuit 100 is increased. Meanwhile, the switching loss of each power switch can be adjusted by controlling the on-off of each power switch, so that the power supply loss in the power supply process is reduced.

In the above embodiment provided by the application, the control unit 2306 may adjust the operating state of each power switch in the power supply circuit according to the load value of the load component, so that the output current value range of the power supply circuit is increased, and meanwhile, the power supply loss in the power supply process is reduced.

The electronic device 2300 in the embodiment of the present application may be a terminal, or may be other devices besides a terminal. As an example, the electronic Device 2300 may be a Mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic Device, a Mobile Internet Device (MID), an Augmented Reality (AR)/Virtual Reality (VR) Device, a robot, a wearable Device, an ultra-Mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and may also be a server, a Network Attached Storage (Storage), a personal computer (NAS), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.

Optionally, as shown in fig. 24, an electronic device 2400 is further provided in the embodiment of the present application, and includes a processor 2402 and a memory 2404, where the memory 2404 stores a program or an instruction that can be executed on the processor 2402, and when the program or the instruction is executed by the processor 2402, the power supply method executed by the power supply circuit of the first aspect is implemented, and the same technical effect can be achieved, and is not described herein again to avoid repetition.

It should be noted that the electronic device 2400 in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.

Fig. 25 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.

The electronic device 2500 includes, but is not limited to, the following load components: radio unit 2501, network module 2502, audio output unit 2503, input unit 2504, sensor 2505, display unit 2506, user input unit 2507, interface unit 2508, memory 2509, processor 2510, and the like.

Further, the electronic device 2500 further includes the power supply circuit 100 in the first aspect embodiment.

Those skilled in the art will appreciate that the electronic device 2500 may further include a power supply 2511 (such as a battery) for supplying power to each component, in this embodiment, the power supply circuit 100 may be specifically located in the power management system 2512, and the power supply 5211 may be logically connected to the processor 2510 through the power management system 2512, so as to implement the functions of managing power supply, discharging, and power consumption management through the power management system 2512. The electronic device structure shown in fig. 25 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description thereof is omitted.

The electronic device 2500 of the embodiment of the present application may be used to implement the power supply method performed by the power supply circuit of the first aspect described above.

The processor 2510 is configured to obtain a load value of the load component.

A processor 2510, further configured to determine a target current value required by the load component according to the load value of the load component; determining a corresponding target impedance value according to the target current value; and determining the working state of each switch in the switch assembly according to the target impedance value.

The processor 2510 is further configured to control each switch in the switch assembly to be opened or closed according to the operating state of each switch in the switch assembly, so as to adjust the impedance value of the power supply circuit to the target impedance value, and adjust the output current value of the power supply circuit to the target current value.

In this embodiment, when the load component is powered by the power supply circuit, the processor 2510 obtains a load value of the load component, determines a target current value required for powering the load component according to the load value of the load component, determines a corresponding target impedance value according to the target current value, and determines a working state of each switch in the switch component according to the target impedance value. Further, the processor 2510 controls each switch in the switch assembly to be opened or closed according to the operating state of each switch in the switch assembly, so that the impedance value of the power supply circuit is the target impedance value, and the output current value of the power supply circuit is the target current value. Therefore, in the working process of the power supply circuit, the on/off of each switch in the switch assembly is controlled according to the target current value corresponding to the load value of the load assembly, so that the impedance value of the power supply circuit, the current value output by the power supply circuit and the load value of the load assembly are in one-to-one correspondence, the power supply requirements of the load assemblies with different load sizes on different load currents are met, the power supply loss is reduced, and the power supply efficiency is improved.

Optionally, processor 2510 is further configured to: and adjusting the working state of each power switch in the power supply circuit according to the load value of the load component so as to adjust the output current value of the power supply circuit.

In the above embodiment provided by the application, in the working process of the power supply circuit, the processor 2510 adjusts the working state of each power switch in the power supply circuit according to the load value of the load component, so that the output current value range of the power supply circuit is increased, and the power supply loss in the power supply process is reduced.

It should be understood that, in the embodiment of the present application, the input Unit 2504 may include a Graphics Processing Unit (GPU) 25041 and a microphone 25042, and the Graphics processor 25041 processes image data of still pictures or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 2506 may include a display panel 25061, and the display panel 25061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 2507 includes at least one of a touch panel 25071 and other input devices 25072. A touch panel 25071, also referred to as a touch screen. The touch panel 25071 may include two parts of a touch detection device and a touch controller. Other input devices 25072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

The memory 2509 may be used to store software programs as well as various data. The memory 2509 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playing function, an image playing function, and the like), and the like. Further, the memory 2509 may comprise volatile memory or nonvolatile memory, or the memory 2509 may comprise both volatile and nonvolatile memory.

The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM), a Static Random Access Memory (Static RAM, SRAM), a Dynamic Random Access Memory (Dynamic RAM, DRAM), a Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), a Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, ddr SDRAM), an Enhanced Synchronous SDRAM (ESDRAM), a Synchronous Link DRAM (SLDRAM), and a Direct Memory bus RAM (DRRAM). The memory 2509 in the present embodiments includes, but is not limited to, these and any other suitable types of memory.

Processor 2510 can include one or more processing units; optionally, processor 2510 integrates an application processor, which primarily handles operations involving the operating system, user interface, and applications, and a modem processor, which primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 2510.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the process of the embodiment of the power supply method according to the second aspect is implemented, and the same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

The processor is the processor in the electronic device in the above embodiment. Readable storage media, including computer readable storage media such as computer read only memory ROM, random access memory RAM, magnetic or optical disks, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction, to implement each process of the power supply method embodiment of the second aspect, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

The present application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the processes of the power supply method embodiment of the second aspect as described above, and achieve the same technical effects, and in order to avoid repetition, details are not described here again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method of the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. A power supply circuit for an electronic device including a voltage supply component, a load component, and the power supply circuit, the power supply circuit comprising:

the input end of each power supply circuit is connected with the voltage supply assembly, the output end of each power supply circuit is connected with the load assembly, and the at least two power supply circuits are connected in parallel;

a switch assembly connected to each of the power circuits;

the control circuit is connected with each power supply circuit, the switch assembly and the load assembly, and is used for adjusting the working state of the switch assembly according to the load value of the load assembly so as to adjust the output current value.

2. The power supply circuit of claim 1, wherein each of the power supply circuits comprises:

the input end of the first inductive element is connected with the voltage supply component, and the output end of the first inductive element is connected with the load component;

the control circuit is specifically configured to: and adjusting the connection relation of the first inductive elements in the at least two power supply circuits by adjusting the working state of the switch component so as to adjust the impedance values of the at least two power supply circuits and adjust the output current value.

3. The power supply circuit of claim 2, wherein the switching assembly comprises:

a first switch group, where the first switch group includes at least two first switches, first ends of the at least two first switches are connected to output ends of the first inductive elements in the at least two power supply circuits in a one-to-one correspondence manner, and a second end of each first switch is connected to the load component;

a second switch set, wherein the second switch set comprises at least one second switch, a first terminal of the second switch is connected to the output terminal of the first inductive element in the first power circuit, and a second terminal of the second switch is connected to the input terminal of the first inductive element in the second power circuit;

wherein the first power supply circuit and the second power supply circuit are any two power supply circuits of the at least two power supply circuits.

4. The power supply circuit of claim 3, wherein the switching assembly further comprises:

a third switch set comprising at least one third switch, a first end of the third switch being connected to the input of the first inductive element in a third power supply circuit, a second end of the third switch being connected to the input of the first inductive element in a fourth power supply circuit;

wherein the third power supply circuit and the fourth power supply circuit are any two power supply circuits of the at least two power supply circuits.

5. The power supply circuit according to any one of claims 2 to 4, wherein the control circuit comprises:

the detection circuit is connected with the load component and is used for detecting the load value of the load component;

the first sub-control circuit is connected with the detection circuit and the switch component, and is used for adjusting the working state of the switch component according to the load value of the load component so as to adjust the connection relation of the at least two power supply circuits and adjust the impedance values of the at least two power supply circuits.

6. The power supply circuit of claim 5, wherein each of the power supply circuits further comprises:

the input end of the first inductive element is connected with the voltage supply component through the power switch;

the control circuit further includes:

and the second sub-control circuit is connected with the detection circuit and the power switch, and is used for controlling the power switch to be switched on or switched off according to the load value of the load component.

7. The power supply circuit according to any one of claims 2 to 4, further comprising:

a first capacitor, a first end of which is connected to the output end of the first inductive element in each power circuit, and a second end of which is grounded;

each of the power supply circuits further includes:

and the anode of the freewheeling diode is grounded, and the cathode of the freewheeling diode is connected with the input end of the first inductive element in the power circuit.

8. An electronic device characterized by comprising the power supply circuit of any one of claims 1 to 7.

9. The electronic device of claim 8, further comprising:

an acquisition unit configured to acquire a load value of the load component;

the processing unit is used for determining a target current value required by the load component according to the load value of the load component; determining a corresponding target impedance value according to the target current value; determining the working state of each switch in the switch assembly according to the target impedance value;

and the control unit is used for controlling each switch in the switch assembly to be switched on or switched off according to the working state of each switch in the switch assembly so as to adjust the impedance value of the power supply circuit to the target impedance value and adjust the output current value of the power supply circuit to the target current value.

10. An electronic device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions when executed by the processor implementing a power supply method performed by the power supply circuit of any one of claims 1 to 7.