CN116365869A - Power supply circuit, power supply method, power supply device, electronic apparatus, and readable storage medium - Google Patents

Power supply circuit, power supply method, power supply device, electronic apparatus, and readable storage medium Download PDF

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Publication number
CN116365869A
CN116365869A CN202310379831.3A CN202310379831A CN116365869A CN 116365869 A CN116365869 A CN 116365869A CN 202310379831 A CN202310379831 A CN 202310379831A CN 116365869 A CN116365869 A CN 116365869A
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China
Prior art keywords
load
power supply
voltage signal
conversion circuit
power
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CN202310379831.3A
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Chinese (zh)
Inventor
沈洁
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202310379831.3A priority Critical patent/CN116365869A/en
Publication of CN116365869A publication Critical patent/CN116365869A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The application discloses a power supply circuit, a power supply method, a power supply device, electronic equipment and a readable storage medium, and belongs to the technical field of electronic equipment. The power supply circuit includes: a power supply device for outputting a first voltage signal; the input end of the charge pump is connected with the power supply device and is used for converting the first voltage signal into a second voltage signal; the first conversion circuit is connected with the output end of the charge pump; the first input ends of the at least two second conversion circuits are connected with the power supply device; and the controller is connected with the charge pump.

Description

Power supply circuit, power supply method, power supply device, electronic apparatus, and readable storage medium
Technical Field
The application belongs to the technical field of electronic equipment, and particularly relates to a power supply circuit, a power supply method, a power supply device, electronic equipment and a readable storage medium.
Background
In the current power supply of mobile phone system, as the requirements of users on the running speed and performance of XPU (processing chip) are continuously improved, there are multi-phase power supply parallel application scenarios in the mobile phone system, such as: the baseband and XPU are powered by a multi-phase power supply.
The multi-phase power supply parallel scheme in the related art is usually realized by adopting a multi-path balanced inductance scheme, and multiple paths of input voltages and output voltages are connected on the same voltage network, so that a better efficiency curve is difficult to obtain in light load and optimal performance is difficult to obtain in dynamic load.
Disclosure of Invention
An object of the embodiments of the present application is to provide a power supply circuit, a power supply method, a device, an electronic apparatus, and a readable storage medium, which realize ensuring high efficiency of the power supply circuit to light load and ensuring performance of the power supply circuit under dynamic heavy load.
In a first aspect, embodiments of the present application provide a power supply circuit for supplying power to a load, the power supply circuit including: a power supply device for outputting a first voltage signal; the input end of the charge pump is connected with the power supply device and is used for converting the first voltage signal into a second voltage signal; the first conversion circuit is connected with the output end of the charge pump; the first input ends of the at least two second conversion circuits are connected with the power supply device; and the controller is connected with the charge pump and is used for: determining the running state of the load according to the voltage value of the load; based on the operating state, controlling the first conversion circuit to supply power to the load through the second voltage signal, and controlling the second conversion circuit to supply power to the load through the target voltage signal; wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In a second aspect, an embodiment of the present application provides a power supply method, which is applied to a power supply circuit in the first aspect, where the power supply circuit is connected to a load, and the power supply method includes: determining the running state of the load according to the voltage value of the load; based on the operating state, controlling the first conversion circuit to supply power to the load through the second voltage signal, and controlling the second conversion circuit to supply power to the load through the target voltage signal; wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In a third aspect, an embodiment of the present application provides a power supply device, applied to a power supply circuit in the first aspect, where the power supply circuit is connected to a load, and the power supply device includes: the determining module is used for determining the running state of the load according to the voltage value of the load; the power supply module is used for controlling the first conversion circuit to supply power to the load through the second voltage signal and controlling the second conversion circuit to supply power to the load through the target voltage signal based on the running state; wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In a fourth aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the power supply method as in the second aspect.
In a fifth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of the power supply method as in the second aspect.
In a sixth aspect, embodiments of the present application provide a chip comprising a processor and a communication interface coupled to the processor, the processor being configured to execute programs or instructions for implementing the steps of the power supply method as in the second aspect.
In a seventh aspect, embodiments of the present application provide a computer program product stored in a storage medium, the program product being executed by at least one processor to implement the steps of the power supply method as in the second aspect.
In this embodiment of the application, set up the charge pump between power supply unit and first conversion circuit and second conversion circuit in power supply circuit, according to the running state of power supply circuit's load, can select the second conversion circuit to supply power to the load through first voltage signal or second voltage signal through the charge pump, guarantee the high efficiency of power supply circuit to light load to guarantee the performance of power supply circuit under dynamic heavy load.
Drawings
FIG. 1 illustrates a circuit schematic of a power supply circuit according to some embodiments of the present application;
FIG. 2 illustrates a pulse frequency modulation mode schematic of a light load operating state with a load operating in a steady state according to some embodiments of the present application;
FIG. 3 illustrates a pulse frequency modulation mode schematic of a load operating in a dynamic state according to some embodiments of the present application;
FIG. 4 illustrates a charge pump bypass schematic according to some embodiments of the present application;
FIG. 5 illustrates an efficiency boost curve of phase versus load switching according to some embodiments of the present application;
FIG. 6 illustrates a flow diagram of a power supply method according to some embodiments of the present application;
FIG. 7 illustrates a block diagram of a power supply device according to some embodiments of the present application;
FIG. 8 illustrates a block diagram of an electronic device, according to some embodiments of the present application;
fig. 9 is a schematic diagram of a hardware structure of an electronic device implementing some embodiments of the present application.
Wherein reference numerals of fig. 1 are as follows:
100 power supply circuits, 110 power supply devices, 120 charge pumps, 130 first conversion circuits, 140 second conversion circuits, 150 controllers, 200 loads.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the objects identified by "first," "second," etc. are generally of a type and do not limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The power supply circuit, the power supply method, the power supply device, the electronic equipment and the readable storage medium provided by the embodiment of the application are described in detail below with reference to fig. 1 to 9 through specific embodiments and application scenes thereof.
In some embodiments of the present application, a power supply circuit is provided, fig. 1 shows a circuit schematic diagram of the power supply circuit according to some embodiments of the present application, as shown in fig. 1, the power supply circuit 100 includes: the power supply 110, the charge pump 120, the first conversion circuit 130, at least two second conversion circuits 140, and the controller 150.
Wherein, the power supply device 110 is configured to output a first voltage signal; the input end of the charge pump 120 is connected with the power supply device 110 and is used for converting the first voltage signal into a second voltage signal; the first conversion circuit 130 is connected with the output end of the charge pump 120; the at least two second conversion circuits 140 are connected in parallel, and the first input ends of the at least two second conversion circuits 140 are connected with the output end of the charge pump 120, and the second input ends of the at least two second conversion circuits 140 are connected with the power supply device 110; the controller 150 is connected to the charge pump 120, and the controller 150 is configured to:
determining an operating state of the load 200 according to the voltage value of the load 200; based on the operating state, the first conversion circuit 130 is controlled to supply power to the load 200 through the second voltage signal, and the second conversion circuit 140 is controlled to supply power to the load 200 through the target voltage signal; wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In this embodiment of the present application, the power supply circuit 100 includes a power supply device 110, a charge pump 120, a first conversion circuit 130, at least two second conversion circuits 140 and a controller 150, where the controller 150 can adjust the positions connected by the plurality of second conversion circuits 140 through bypass (bypass) functions of the charge pump 120 according to the running state of the load 200 of the power supply circuit 100, so that the overall efficiency of the power supply circuit 100 in the light load state is improved, and the power supply circuit 100 in the dynamic load state can be ensured, the output voltage drop is ensured to be minimum, and the optimal dynamic load characteristic is achieved. The power supply circuit 100 realizes a structure which can ensure high efficiency of light load and simultaneously ensure performance under dynamic heavy load 200, and does not need line hardware to support multiphase unbalanced inductance.
Specifically, the power supply circuit 100 is configured to supply power to a baseband and an XPU (processing chip) in a mobile phone system, where the XPU may be a CPU (core processor) or a GPU (graphics processing unit). The power supply device 110 may be a power supply device 110 formed by a battery of a mobile phone or a battery and other voltage regulating circuits, and the power supply device 110 provides electric energy. The input terminal of the charge pump 120 is connected to the power supply 110, the output terminal of the charge pump 120 is connected to the first input terminals of the first conversion circuit 130 and the second conversion circuit 140, respectively, and the second input terminal of the second conversion circuit 140 is connected to the power supply 110. The charge pump 120 can selectively turn on the first input terminal or the second input terminal of the at least two second conversion circuits 140 through the bypass function, so that the at least two second conversion circuits 140 can be selectively connected to the output terminal of the power supply device 110, and the at least two second conversion circuits 140 can also be selectively connected to the output terminal of the charge pump 120. The controller 150 monitors the operating state of the load 200, and adjusts and switches the positions to which the at least two second conversion circuits 140 are connected by the charge pump 120 based on the different operating states.
The first conversion circuit 130 and the second conversion circuit 140 are selected as Buck circuits (Buck conversion circuits). During operation of the power supply circuit 100, the first conversion circuit 130 remains connected to the output end of the charge pump 120, that is, the first conversion circuit 130 always supplies power to the load 200 through the second voltage signal output by the charge pump 120, and the controller 150 adjusts the power supply mode by switching the conduction states of the first input end and the second input end of at least two second conversion circuits 140, that is, the second conversion circuit 140 can supply power to the load 200 through the second voltage signal output by the charge pump 120, and can also supply power to the load 200 through the first voltage signal output by the power supply device 110.
Illustratively, the first conversion circuit 130 is Buck1, and the at least two second conversion circuits 140 are Buck2 to BuckN. Fig. 2 is a schematic diagram showing a pulse frequency modulation mode of a light load operation state of the load 200 in a steady state according to some embodiments of the present application, where the load 200 is operated in the steady state, and where Buck1 to BuckN are connected to an output voltage of the charge pump 120, and when the load 200 is operated in the light load stage, only Buck1 is operated, and when the direct current load 200 is slowly increased or is rapidly increased to an auto-phase increasing current point, buck2 to BuckN are sequentially turned on, and a phase switching function may improve an overall efficiency of the power supply circuit 100, where a phase 1 curve is a Buck1 on state curve, and a phase 2 curve is a Buck2 on state curve. Fig. 3 illustrates a schematic diagram of a pulse frequency modulation mode of a load 200 operating in a dynamic state, where the load 200 is connected to a power supply 110 through a 4:1 charge pump 120bypass function, and the power supply 110 may be a 2-fold battery voltage network, according to some embodiments of the present application. As can be seen from the following formula (1), when the difference between the input voltage and the output voltage is increased to 4 times, the equivalent inductance of the Buck circuit is reduced to 1/4, and when the equivalent inductance is reduced, the performance of the dynamic load 200 of the load 200 is greatly improved, i.e. when a rapid high current demand arrives, buck2 to Buck n connected to the power supply device 110 are synchronously turned on, so as to ensure that the output voltage drops to a minimum, and achieve the optimal dynamic load 200 characteristics. The curve of the phase 1 is the curve in the Buck1 opening state, and the curve of the phase 2 is the curve in the Buck2 opening state. When the steady state is a current change of the load 200, the voltage of the load 200 does not change significantly, and when the dynamic state is a current change of the load 200, the voltage of the load 200 changes.
Illustratively, the battery voltage has a value ranging from 3.5V to 4.45V, and the inductance values of the Buck circuits selected by the first conversion circuit 130 and the second conversion circuit 140 have a value ranging from 0.1uH to 1uH.
Wherein, formula (1) is as follows:
(Vin-Vout)＝L×di/dt；
where Vin is an input voltage, vout is an output voltage, di/dt is a rate of change of current, and L is an inductance value.
Fig. 4 illustrates a schematic diagram of a charge pump 120bypass according to some embodiments of the present application, as shown in fig. 4, in the on state of MOS1 and MOS2, the charge pump 120 connects at least two second conversion circuits 140 to a 2-times battery voltage network output by the power supply 110 through the bypass.
Fig. 5 illustrates an efficiency improvement curve of the phase with the switching of the load 200 according to some embodiments of the present application, as shown in fig. 5, when the load 200 of the power supply circuit 100 is in a steady state, the load 200 is in a light load state, and the first conversion circuit 130 operates at this time, and as the dc load 200 increases, at least two second conversion circuits 140 are turned on successively, so as to implement a phase switching function, thereby improving the overall efficiency of the power supply circuit 100. The power supply circuit 100 can automatically switch the actual number of phases according to the output current, and operate in phase 1 under light load, in phase 2 or phase 3 under intermediate load 200, and in phase N under heavy load. The purpose of automatically switching the phase numbers is to achieve a better efficiency curve.
In this embodiment, the charge pump 120 is disposed between the power supply device 110 in the power supply circuit 100 and the first conversion circuit 130 and the second conversion circuit 140, and according to the running state of the load 200 of the power supply circuit 100, the second conversion circuit 140 can be selected to supply power to the load 200 through the first voltage signal or the second voltage signal by the charge pump 120, so that the high efficiency of the power supply circuit 100 to the light load is ensured, and the performance of the power supply circuit 100 under the dynamic heavy load 200 is ensured.
In the embodiment of the application, when the load 200 runs in light load for a long time and in heavy load for a short time, the optimization of light load efficiency is realized and the performance of the dynamic load 200 is ensured. In the case where the load 200 is operated under heavy load for a long time and under light load for a short time, it is possible to provide superior heavy load efficiency and dynamic load 200 performance.
In some embodiments of the present application, the operating frequency of the first conversion circuit 130 is different from the operating frequency of the second conversion circuit 140.
In the embodiment of the present application, the operating frequency of the first conversion circuit 130 and the operating frequency of the second conversion circuit 140 are set to different frequencies, so that the steady-state ripple voltage of the power supply circuit 100 can be reduced, and the operation stability of the power supply circuit 100 can be improved.
Illustratively, the operating frequency of the second conversion circuit 140 is higher than the operating frequency of the first conversion circuit 130.
Specifically, the first conversion circuit 130 is a Buck circuit that is connected to the output terminal of the charge pump 120, and the second conversion circuit 140 is a Buck circuit that is connected to the output terminal of the charge pump 120 or to the power supply device 110 by the bypass function of the charge pump 120, that is, the first conversion circuit 130 is only used to supply power to the load 200 by the second voltage signal output by the charge pump 120, and the second conversion circuit 140 is capable of supplying power to the load 200 by the second voltage signal output by the charge pump 120, and is also capable of supplying power to the load 200 by the first voltage signal output by the power supply device 110. By setting the operating frequency of the second conversion circuit 140 higher than the operating frequency of the first conversion circuit 130, the ripple voltage of the power supply circuit 100 in a steady state is reduced. It should be noted that, the set values of the input voltage networks are different, that is, the drain electrode network of the MOS transistor of the upper bridge in the Buck line, and the gates of all the power MOS transistors in the whole architecture need to be uniformly connected to the higher voltage network to obtain better on-resistance.
In some embodiments of the present application, the ratio of the input value to the output value of the charge pump 120 is 4:1
In the embodiment of the application, by selecting the charge pump 120 as the charge pump 120 with the ratio of 4:1, when the voltage is increased by 4 times, the equivalent inductance can be reduced to 1/4, so that the power supply circuit 100 can ensure the high efficiency of light load and the performance under dynamic heavy load.
Optionally, the proportional relationship between the input value and the output value of the charge pump may be adjusted according to the actual requirement, which is not limited herein.
In some embodiments of the present application, the load 200 is powered by the second voltage signal with the first input of the second conversion circuit 140 being in conduction with the charge pump 120; when the second input terminal of the second conversion circuit 140 is connected to the power supply device 110, the load 200 is supplied with power by the first voltage signal.
In this embodiment, the second conversion circuit 140 includes a first input end and a second input end, the first input end of the second conversion circuit 140 is connected to the output end of the charge pump 120, and the second input end of the second conversion circuit 140 is connected to the output end of the power supply device 110. By adjusting the conduction state of the first input terminal of the second conversion circuit 140 and the charge pump 120, and the conduction state of the second input terminal of the second conversion circuit 140 and the power supply device 110, the second conversion circuit 140 can be switched between supplying power to the load 200 via the first voltage signal, and supplying power to the load 200 via the second voltage signal.
Specifically, the first input terminal of the second conversion circuit 140 is controlled to be turned on to the charge pump 120, so that the second conversion circuit 140 supplies power to the load 200 through the second voltage signal output by the power supply device 110. The second input terminal of the second conversion circuit 140 is controlled to be conducted with the power supply device 110, so that the second conversion circuit 140 supplies power to the load 200 through the first voltage signal output by the power supply device 110.
In this embodiment, by adjusting the conduction states of the first input terminal and the second input terminal of the second conversion circuit 140, the second conversion circuit 140 can switch between supplying the first voltage signal to the load 200 and supplying the second voltage signal to the load 200.
In some embodiments of the present application, a power supply method is provided and applied to the power supply circuit in any of the foregoing embodiments, and fig. 6 shows a schematic flow chart of the power supply method according to some embodiments of the present application, as shown in fig. 6, where the power supply method includes:
step 602, determining the running state of the load according to the voltage value of the load;
in the embodiment of the application, in the running process of the load, the voltage value of the load is continuously detected, and the load can be determined to run in a steady state or a dynamic state by analyzing the voltage value. When the steady state is a current change of the load, the voltage of the load does not change greatly, and when the dynamic state is a current change of the load, the voltage of the load changes.
Illustratively, the current and voltage values at the load are continuously collected, and the load is determined to operate in a steady state or a dynamic state based on the state of the change in the current and voltage values.
Step 604, based on the operating state, controls the first conversion circuit to supply power to the load through the second voltage signal, and controls the second conversion circuit to supply power to the load through the target voltage signal.
Wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In this embodiment of the present application, the first voltage signal is a voltage signal output by the power supply device, and the second voltage signal is a voltage signal output by the charge pump through performing conversion processing on the first voltage signal. The first conversion circuit is kept connected with the output end of the charge pump and continuously supplies power to the load through the second voltage signal. By the bypass function of the charge pump, the load is powered by selecting the first voltage signal or the second voltage signal as the target voltage signal based on the operating state of the load.
In particular, the load is operated in a steady state, the first and second conversion circuits are both connected to the output voltage at the charge pump, i.e. the first and second conversion circuits both supply the load with the second voltage signal. In a dynamic state of the load, the first conversion circuit is connected to the output voltage of the charge pump, and the plurality of second conversion circuits are connected to the power supply device, i.e. the first conversion circuit supplies power to the load through the second voltage signal, and the second conversion circuit supplies power to the load through the first voltage signal.
In this embodiment of the application, set up the charge pump between power supply unit and first conversion circuit and second conversion circuit in power supply circuit, according to the running state of power supply circuit's load, can select the second conversion circuit to supply power to the load through first voltage signal or second voltage signal through the charge pump, guarantee the high efficiency of power supply circuit to light load to guarantee the performance of power supply circuit under dynamic heavy load.
In the embodiment of the application, when the load runs in light load for a long time and in heavy load for a short time, the optimization of light load efficiency is realized and the performance of dynamic load is ensured. And under the condition that the load works under heavy load for a long time and light load for a short time, better heavy load efficiency and dynamic load performance can be provided.
In some embodiments of the present application, controlling the first conversion circuit to supply power to the load via the second voltage signal and controlling the second conversion circuit to supply power to the load via the target voltage signal based on the operating state includes:
the control target conversion circuit supplies power to the load through the second voltage signal when the load is operated in a steady state, wherein the target conversion circuit is at least one of the first conversion circuit and the second conversion circuit.
In the technical scheme of the application, under the condition that the current at the load is changed, the voltage value at the load is not changed greatly, and the load is determined to be in a steady state. In a steady state, the first conversion circuit is selected, or the first conversion circuit and the second conversion circuit supply power to the load via the second voltage signal, as a function of the current.
Specifically, when the load operates in a steady state, the first conversion circuit and the second conversion circuit are both connected to the output end of the charge pump, and the load is supplied with power through the second voltage signal output by the charge pump. Under the condition that the current is different, the first conversion circuit is started, or the first conversion circuit and the second conversion circuit are started to supply power to the load through the second voltage signal.
In the embodiment of the application, under the condition that the power supply circuit supplies power to the steady-state load, the first conversion circuit and the second conversion circuit are connected with the output end of the charge pump, so that the power supply efficiency of the power supply circuit is improved under the condition that the load is the steady-state load.
In some embodiments of the present application, a control target conversion circuit supplies power to a load through a first voltage signal when the load is operating in a steady state condition, comprising:
Under the condition that the current value of the load is smaller than a preset current value, the first conversion circuit supplies power to the load through the second voltage signal; and under the condition that the current value of the load is larger than or equal to a preset current value, the first conversion circuit and the at least one second conversion circuit supply power to the load through the second voltage signal.
In this embodiment of the present application, the preset current value is an automatic phase increasing current point. The power supply circuit continuously detects a current value at the load, and when the current value is smaller than a preset current value, only the first conversion circuit supplies power to the load through the second voltage signal. When the current value is larger than or equal to a preset current value, the second conversion circuit is started, and the first conversion circuit and the second conversion circuit supply power to the load through the second voltage signal.
When the current value of the load is larger than the preset current value, the number of the turned-on second conversion circuits is different if the current value of the load is different. When the load is light load, only the first conversion circuit is started to supply power to the load, and a plurality of second circuits are gradually started along with the increase of current, so that the high efficiency of the light load can be ensured.
Illustratively, the first conversion circuit is Buck1 and the at least two second conversion circuits are Buck2 to BuckN. When the load operates in a steady state, buck1 to BuckN are connected to the output voltage of the charge pump, when the load operates in a light load stage, only Buck1 is in operation, and when the direct current load slowly increases or rapidly increases to an automatic phase increasing current point, buck2 to BuckN are sequentially opened, and the phase switching function can improve the overall efficiency of the power supply circuit.
In the embodiment of the application, when the load operates in a steady state, the controller can continuously detect the current value of the load, and when the current value is lower than a preset current value, the first conversion circuit is only used for supplying power to the load, and when the current value is higher than the preset current value, the second conversion circuit is started, and the second conversion circuit and the first conversion circuit are used for supplying power to the load together through the second voltage signal, so that the overall efficiency of the power supply circuit is improved.
In some embodiments of the present application, the number of second conversion circuits that power the load is positively correlated with the current value of the load.
In this embodiment of the present application, when the current value at the load is greater than the preset current value, the plurality of second conversion circuits are turned on, and power is supplied to the load together with the first conversion circuit through the second voltage signal. And as the current value at the load is gradually increased, the starting number of the second conversion circuit is gradually increased, and the power supply efficiency of the power supply circuit to the load is further ensured.
In some embodiments of the present application, controlling the first conversion circuit to supply power to the load via the second voltage signal and controlling the second conversion circuit to supply power to the load via the target voltage signal based on the operating state includes:
Controlling the first conversion circuit to supply power to the load through the second voltage signal when the load is operated in a dynamic state; and controlling at least two second conversion circuits to synchronously supply power to the load through the first voltage signal under the condition that the current value of the load meets the preset condition.
In the embodiment of the present application, when the dynamic state is a current change of the load, the voltage of the load changes accordingly. When the current value of the load meets the preset condition, the plurality of second conversion circuits are connected to the output voltage of the power supply device through the bypass function of the charge pump, and the first conversion circuit supplies power to the load through the second voltage signal and supplements energy to the load through the first voltage signal output by the power supply device.
Illustratively, the first conversion circuit is Buck1 and the at least two second conversion circuits are Buck2 to BuckN. Under the dynamic state of load operation, the Buck2-BuckN is connected to a power supply device through a charge pump bypass function, and the power supply device can be a battery voltage network with the power of 2 times. When the difference between the input voltage and the output voltage is increased to 4 times, the equivalent inductance of the Buck circuit is reduced to 1/4, and when the equivalent inductance is reduced, the dynamic load performance of the load can be greatly improved.
In this embodiment of the application, under the circumstances that power supply circuit supplies power to dynamic load, because the voltage value of load department can change along with the current value of load department, so through the output voltage of charge pump with second conversion circuit direct connection to power supply unit, when having guaranteed that the electric current promotes by a wide margin, output voltage variation is minimum to power supply circuit has improved the power supply effect to dynamic load.
In some embodiments of the present application, the preset conditions include: the increase value of the current value of the load is larger than a preset increase value.
In this embodiment of the present application, when detecting that the load is a dynamic load, at the beginning stage of power supply, the first converting circuit supplies power to the load through the second voltage signal, at this moment, a plurality of second converting circuits keep the off state, when the electric current promotes by a wide margin, that is, the increase value of the electric current value of the detected load is greater than the preset increase value, then open a plurality of second converting circuits in step, reduce the equivalent inductance, when the equivalent inductance reduces, the dynamic load performance of load can promote by a wide margin, that is, when a quick heavy current demand arrives, a plurality of second converting circuits connected to power supply unit can open in step, guarantee that the output voltage drops by a minimum, reach the optimal dynamic load characteristic.
According to the power supply method provided by the embodiment of the application, the execution main body can be a power supply device. In the embodiment of the present application, a power supply device performs a power supply method as an example, and the power supply device provided in the embodiment of the present application is described.
In some embodiments of the present application, a power supply device is provided, which is applied to the power supply circuit in any of the foregoing embodiments, and fig. 7 shows a block diagram of a power supply device 700 according to some embodiments of the present application, as shown in fig. 7, the power supply device 700 includes:
a determining module 702, configured to determine an operation state of the load according to the voltage value of the load;
a power supply module 704, configured to control the first conversion circuit to supply power to the load through the second voltage signal, and control the second conversion circuit to supply power to the load through the target voltage signal, based on the operation state;
wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In this embodiment of the application, set up the charge pump between power supply unit and first conversion circuit and second conversion circuit in power supply circuit, according to the running state of power supply circuit's load, can select the second conversion circuit to supply power to the load through first voltage signal or second voltage signal through the charge pump, guarantee the high efficiency of power supply circuit to light load to guarantee the performance of power supply circuit under dynamic heavy load.
In the embodiment of the application, when the load runs in light load for a long time and in heavy load for a short time, the optimization of light load efficiency is realized and the performance of dynamic load is ensured. And under the condition that the load works under heavy load for a long time and light load for a short time, better heavy load efficiency and dynamic load performance can be provided.
In some embodiments of the present application, the power supply module 704 is configured to control the target conversion circuit to supply power to the load through the second voltage signal when the load is operating in a steady state, where the target conversion circuit is at least one of the first conversion circuit and the second conversion circuit.
In the embodiment of the application, under the condition that the power supply circuit supplies power to the steady-state load, the first conversion circuit and the second conversion circuit are connected with the output end of the charge pump, so that the power supply efficiency of the power supply circuit is improved under the condition that the load is the steady-state load.
In some embodiments of the present application, the power supply module 704 is configured to supply power to the load through the second voltage signal when the current value of the load is less than the preset current value;
and the power supply module 704 is used for supplying power to the load through the second voltage signal by the first conversion circuit and the at least one second conversion circuit under the condition that the current value of the load is larger than or equal to a preset current value.
In the embodiment of the application, when the load operates in a steady state, the controller can continuously detect the current value of the load, and when the current value is lower than a preset current value, the first conversion circuit is only used for supplying power to the load, and when the current value is higher than the preset current value, the second conversion circuit is started, and the second conversion circuit and the first conversion circuit are used for supplying power to the load together through the second voltage signal, so that the overall efficiency of the power supply circuit is improved.
In some embodiments of the present application, the number of second conversion circuits that power the load is positively correlated with the current value of the load.
In this embodiment of the present application, when the current value at the load is greater than the preset current value, the plurality of second conversion circuits are turned on, and power is supplied to the load together with the first conversion circuit through the second voltage signal. And as the current value at the load is gradually increased, the starting number of the second conversion circuit is gradually increased, and the power supply efficiency of the power supply circuit to the load is further ensured.
In some embodiments of the present application, the power supply module 704 is configured to control the first conversion circuit to supply power to the load through the second voltage signal when the load operates in a dynamic state;
and the power supply module 704 is used for controlling at least two second conversion circuits to synchronously supply power to the load through the first voltage signal under the condition that the current value of the load meets the preset condition.
In this embodiment of the application, under the circumstances that power supply circuit supplies power to dynamic load, because the voltage value of load department can change along with the current value of load department, so through the output voltage of charge pump with second conversion circuit direct connection to power supply unit, when having guaranteed that the electric current promotes by a wide margin, output voltage variation is minimum to power supply circuit has improved the power supply effect to dynamic load.
In some embodiments of the present application, the preset conditions include: the increase value of the current value of the load is larger than a preset increase value.
In this embodiment of the present application, when detecting that the load is a dynamic load, at the beginning stage of power supply, the first converting circuit supplies power to the load through the second voltage signal, at this moment, a plurality of second converting circuits keep the off state, when the electric current promotes by a wide margin, that is, the increase value of the electric current value of the detected load is greater than the preset increase value, then open a plurality of second converting circuits in step, reduce the equivalent inductance, when the equivalent inductance reduces, the dynamic load performance of load can promote by a wide margin, that is, when a quick heavy current demand arrives, a plurality of second converting circuits connected to power supply unit can open in step, guarantee that the output voltage drops by a minimum, reach the optimal dynamic load characteristic.
The power supply device in the embodiment of the application may be an electronic device, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the electronic device may be a mobile phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, mobile internet appliance (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/Virtual Reality (VR) device, robot, wearable device, ultra-mobile personal computer, UMPC, netbook or personal digital assistant (personal digital assistant, PDA), etc., but may also be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The power supply device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
The power supply device provided in this embodiment of the present application can implement each process implemented by the foregoing method embodiment, and in order to avoid repetition, details are not repeated here.
Optionally, an electronic device is further provided in the embodiments of the present application, fig. 8 shows a block diagram of a structure of an electronic device according to some embodiments of the present application, as shown in fig. 8, an electronic device 800 includes a processor 802, a memory 804, and a program or an instruction stored in the memory 804 and capable of running on the processor 802, where the program or the instruction is executed by the processor 802 to implement each process of the foregoing method embodiments, and the technical effects are the same, and are not repeated herein.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device.
Fig. 9 is a schematic hardware structure of an electronic device implementing some embodiments of the present application.
The electronic device 900 includes, but is not limited to: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.
Those skilled in the art will appreciate that the electronic device 900 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 910 by a power management system to perform functions such as managing charge, discharge, and power consumption by the power management system. The electronic device structure shown in fig. 9 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.
Wherein, the processor 910 is configured to determine an operation state of the load according to the voltage value of the load;
a processor 910 for controlling the first conversion circuit to supply power to the load through the second voltage signal and controlling the second conversion circuit to supply power to the load through the target voltage signal based on the operation state;
wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
In this embodiment of the application, set up the charge pump between power supply unit and first conversion circuit and second conversion circuit in power supply circuit, according to the running state of power supply circuit's load, can select the second conversion circuit to supply power to the load through first voltage signal or second voltage signal through the charge pump, guarantee the high efficiency of power supply circuit to light load to guarantee the performance of power supply circuit under dynamic heavy load.
In the embodiment of the application, when the load runs in light load for a long time and in heavy load for a short time, the optimization of light load efficiency is realized and the performance of dynamic load is ensured. And under the condition that the load works under heavy load for a long time and light load for a short time, better heavy load efficiency and dynamic load performance can be provided.
Further, the processor 910 is configured to control the target conversion circuit to supply power to the load through the second voltage signal when the load is operating in a steady state, where the target conversion circuit is at least one of the first conversion circuit and the second conversion circuit.
In the embodiment of the application, under the condition that the power supply circuit supplies power to the steady-state load, the first conversion circuit and the second conversion circuit are connected with the output end of the charge pump, so that the power supply efficiency of the power supply circuit is improved under the condition that the load is the steady-state load.
Further, the processor 910 is configured to supply power to the load through the second voltage signal by using the first conversion circuit when the current value of the load is smaller than the preset current value;
the processor 910 is configured to supply power to the load through the second voltage signal by using the first conversion circuit and the at least one second conversion circuit when the current value of the load is equal to or greater than a preset current value.
In the embodiment of the application, when the load operates in a steady state, the controller can continuously detect the current value of the load, and when the current value is lower than a preset current value, the first conversion circuit is only used for supplying power to the load, and when the current value is higher than the preset current value, the second conversion circuit is started, and the second conversion circuit and the first conversion circuit are used for supplying power to the load together through the second voltage signal, so that the overall efficiency of the power supply circuit is improved.
Further, the number of second conversion circuits supplying the load is positively correlated with the current value of the load.
In this embodiment of the present application, when the current value at the load is greater than the preset current value, the plurality of second conversion circuits are turned on, and power is supplied to the load together with the first conversion circuit through the second voltage signal. And as the current value at the load is gradually increased, the starting number of the second conversion circuit is gradually increased, and the power supply efficiency of the power supply circuit to the load is further ensured.
Further, the processor 910 is configured to control the first conversion circuit to supply power to the load through the second voltage signal when the load is operating in a dynamic state;
the processor 910 is configured to control at least two second conversion circuits to synchronously supply power to the load through the first voltage signal when the current value of the load meets a preset condition.
In this embodiment of the application, under the circumstances that power supply circuit supplies power to dynamic load, because the voltage value of load department can change along with the current value of load department, so through the output voltage of charge pump with second conversion circuit direct connection to power supply unit, when having guaranteed that the electric current promotes by a wide margin, output voltage variation is minimum to power supply circuit has improved the power supply effect to dynamic load.
Further, the preset conditions include: the increase value of the current value of the load is larger than a preset increase value.
In this embodiment of the present application, when detecting that the load is a dynamic load, at the beginning stage of power supply, the first converting circuit supplies power to the load through the second voltage signal, at this moment, a plurality of second converting circuits keep the off state, when the electric current promotes by a wide margin, that is, the increase value of the electric current value of the detected load is greater than the preset increase value, then open a plurality of second converting circuits in step, reduce the equivalent inductance, when the equivalent inductance reduces, the dynamic load performance of load can promote by a wide margin, that is, when a quick heavy current demand arrives, a plurality of second converting circuits connected to power supply unit can open in step, guarantee that the output voltage drops by a minimum, reach the optimal dynamic load characteristic.
It should be appreciated that in embodiments of the present application, the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, with the graphics processor 9041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. Touch panel 9071, also referred to as a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
The memory 909 may be used to store software programs as well as various data. The memory 909 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 (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 909 may include a volatile memory or a nonvolatile memory, or the memory 909 may include both volatile and nonvolatile memories. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 909 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
Processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 910.
The embodiment of the application further provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
The processor is a processor in the electronic device in the above embodiment. Readable storage media include computer readable storage media such as Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic or optical disks, and the like.
The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the above method embodiment are realized, the same technical effects can be achieved, and in order to avoid repetition, the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
The embodiments of the present application provide a computer program product, which is stored in a storage medium, and the program product is executed by at least one processor to implement the respective processes of the above method embodiments, and achieve the same technical effects, and are not repeated herein.
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 … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods of the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (13)

1. A power supply circuit for supplying power to a load, the power supply circuit comprising:
a power supply device for outputting a first voltage signal;
the input end of the charge pump is connected with the power supply device and is used for converting the first voltage signal into a second voltage signal;
the first conversion circuit is connected with the output end of the charge pump;
the at least two second conversion circuits are connected in parallel, the first input ends of the at least two second conversion circuits are connected with the output end of the charge pump, and the second input ends of the at least two second conversion circuits are connected with the power supply device;
and the controller is connected with the charge pump and is used for: determining the running state of the load according to the voltage value of the load; controlling the first conversion circuit to supply power to the load through the second voltage signal based on the operation state, and controlling the second conversion circuit to supply power to the load through a target voltage signal; wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
2. The power supply circuit of claim 1, wherein the first conversion circuit and the second conversion circuit operate at different frequencies.
3. The power supply circuit of claim 1, wherein the ratio of the input value to the output value of the charge pump is 4:1.
4. a power supply circuit according to any one of claims 1 to 3, wherein the load is powered by the second voltage signal with the first input of the second conversion circuit in conduction with the charge pump;
and under the condition that the second input end of the second conversion circuit is conducted with the power supply device, the load is supplied with power through the first voltage signal.
5. A power supply method applied to the power supply circuit according to any one of claims 1 to 4, the power supply circuit being connected to a load, the power supply method comprising:
determining the running state of the load according to the voltage value of the load;
controlling the first conversion circuit to supply power to the load through the second voltage signal based on the operation state, and controlling the second conversion circuit to supply power to the load through a target voltage signal;
Wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
6. The power supply method according to claim 5, wherein the controlling the first conversion circuit to supply the load with the second voltage signal and controlling the second conversion circuit to supply the load with a target voltage signal based on the operation state includes:
and controlling a target conversion circuit to supply power to the load through the second voltage signal when the load operates in a steady state, wherein the target conversion circuit is at least one of the first conversion circuit and the second conversion circuit.
7. The power supply method according to claim 6, wherein, in the steady state in which the load is operating, the control target conversion circuit supplies power to the load through the first voltage signal, comprising:
when the current value of the load is smaller than a preset current value, the first conversion circuit supplies power to the load through the second voltage signal;
and under the condition that the current value of the load is larger than or equal to a preset current value, the first conversion circuit and at least one second conversion circuit supply power to the load through the second voltage signal.
8. The power supply method according to claim 7, wherein the number of the second conversion circuits that supply the load is positively correlated with a current value of the load.
9. The power supply method according to claim 5, wherein the controlling the first conversion circuit to supply the load with the second voltage signal and controlling the second conversion circuit to supply the load with a target voltage signal based on the operation state includes:
controlling the first conversion circuit to supply power to the load through the second voltage signal when the load is operated in a dynamic state;
and controlling the at least two second conversion circuits to synchronously supply power to the load through the first voltage signals under the condition that the current value of the load meets the preset condition.
10. The power supply method according to claim 9, wherein the preset condition includes: the increase value of the current value of the load is larger than a preset increase value.
11. A power supply device, characterized in that it is applied to the power supply circuit according to any one of claims 1 to 4, the power supply circuit being connected to a load, the power supply device comprising:
The determining module is used for determining the running state of the load according to the voltage value of the load;
a power supply module for controlling the first conversion circuit to supply power to the load through the second voltage signal based on the operation state, and controlling the second conversion circuit to supply power to the load through a target voltage signal;
wherein the target voltage signal is any one of the first voltage signal and the second voltage signal.
12. An electronic device, comprising:
a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method of any one of claims 5 to 10.
13. A readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to any of claims 5 to 10.
CN202310379831.3A 2023-04-11 2023-04-11 Power supply circuit, power supply method, power supply device, electronic apparatus, and readable storage medium Pending CN116365869A (en)

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