Power supply circuits, power supply methods, devices, electronic equipment, and readable storage media

Abstract

This application discloses a power supply circuit, power supply method, apparatus, electronic device, and readable storage medium, belonging to the field of electronic device technology. The power supply circuit includes: a power supply device for outputting a first voltage signal; a charge pump, the input terminal of which is connected to the power supply device for converting the first voltage signal into a second voltage signal; a first conversion circuit connected to the output terminal of the charge pump; at least two second conversion circuits connected in parallel, with the first input terminals of the at least two second conversion circuits connected to the output terminal of the charge pump, and the second input terminals of the at least two second conversion circuits connected to the power supply device; and a controller connected to the charge pump.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to a power supply circuit, power supply method, device, electronic equipment, and readable storage medium. Background Technology

[0002] Currently, in mobile phone system power supplies, due to the ever-increasing demands of users for the operating speed and performance of the XPU (processor chip), there are multi-phase power supply parallel application scenarios in mobile phone systems, such as using multi-phase power supplies to power the baseband and XPU.

[0003] Multiphase power supply parallel schemes in related technologies are usually implemented using a multi-path balanced inductor scheme, with multiple input and output voltages connected to the same voltage network. This design makes it difficult to obtain a good efficiency curve under light load and also makes it difficult to obtain optimal performance under dynamic load. Summary of the Invention

[0004] The purpose of this application is to provide a power supply circuit, power supply method, device, electronic device, and readable storage medium that ensures high efficiency of the power supply circuit under light loads and performance of the power supply circuit under dynamic heavy loads.

[0005] In a first aspect, embodiments of this application provide a power supply circuit for supplying power to a load. The power supply circuit includes: a power supply device for outputting a first voltage signal; a charge pump, the input terminal of which is connected to the power supply device for converting the first voltage signal into a second voltage signal; a first conversion circuit connected to the output terminal of the charge pump; at least two second conversion circuits connected in parallel, with the first input terminals of the at least two second conversion circuits connected to the output terminal of the charge pump, and the second input terminals of the at least two second conversion circuits connected to the power supply device; and a controller connected to the charge pump, the controller being configured to: determine the operating state of the load based on the voltage value of the load; control the first conversion circuit to supply power to the load through the second voltage signal based on the operating state; and control the second conversion circuit to supply power to the load through a target voltage signal; wherein the target voltage signal is either the first voltage signal or the second voltage signal.

[0006] Secondly, embodiments of this application provide a power supply method applied to the power supply circuit in the first aspect. The power supply circuit is connected to a load. The power supply method includes: determining the operating state of the load based on the voltage value of the load; controlling a first conversion circuit to supply power to the load through a second voltage signal based on the operating state; and controlling a second conversion circuit to supply power to the load through a target voltage signal; wherein the target voltage signal is either the first voltage signal or the second voltage signal.

[0007] Thirdly, embodiments of this application provide a power supply device applied to the power supply circuit in the first aspect. The power supply circuit is connected to a load. The power supply device includes: a determining module, used to determine the operating state of the load based on the voltage value of the load; and a power supply module, used to control a first conversion circuit to supply power to the load through a second voltage signal and to control a second conversion circuit to supply power to the load through a target voltage signal based on the operating state; wherein the target voltage signal is either the first voltage signal or the second voltage signal.

[0008] Fourthly, embodiments of this application provide an electronic device, including: a processor and a memory, wherein the memory stores a program or instructions that can run on the processor, and when the program or instructions are executed by the processor, implement the steps of the power supply method as described in the second aspect.

[0009] Fifthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the power supply method as described in the second aspect.

[0010] In a sixth aspect, embodiments of this application provide a chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the steps of the power supply method as described in the second aspect.

[0011] In a seventh aspect, embodiments of this application provide a computer program product stored in a storage medium, which is executed by at least one processor to implement the steps of the power supply method as described in the second aspect.

[0012] In this embodiment of the application, a charge pump is provided between the power supply device and the first and second conversion circuits in the power supply circuit. According to the operating state of the load of the power supply circuit, the charge pump can select the second conversion circuit to supply power to the load through the first voltage signal or the second voltage signal, so as to ensure the high efficiency of the power supply circuit under light load and the performance of the power supply circuit under dynamic heavy load. Attached Figure Description

[0013] Figure 1 A circuit diagram of a power supply circuit according to some embodiments of this application is shown;

[0014] Figure 2 A schematic diagram of the pulse frequency modulation mode of a light-load operating state under steady-state conditions, according to some embodiments of this application, is shown.

[0015] Figure 3 A schematic diagram of a pulse frequency modulation mode of a load operating in a dynamic state according to some embodiments of this application is shown;

[0016] Figure 4A schematic diagram of a charge pump bypass according to some embodiments of this application is shown;

[0017] Figure 5 The efficiency improvement curves resulting from phase switching with load according to some embodiments of this application are shown;

[0018] Figure 6 A schematic flowchart of a power supply method according to some embodiments of this application is shown;

[0019] Figure 7 A structural block diagram of a power supply device according to some embodiments of this application is shown;

[0020] Figure 8 Structural block diagrams of electronic devices according to some embodiments of this application are shown;

[0021] Figure 9 A schematic diagram of the hardware structure of an electronic device that implements some embodiments of this application.

[0022] in, Figure 1 The accompanying figure labels are as follows:

[0023] 100 Power supply circuit, 110 Power supply device, 120 Charge pump, 130 First conversion circuit, 140 Second conversion circuit, 150 Controller, 200 Load. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] The following is in conjunction with the appendix Figures 1 to 9 The power supply circuit, power supply method, device, electronic device and readable storage medium provided in this application will be described in detail through specific embodiments and application scenarios.

[0027] In some embodiments of this application, a power supply circuit is provided. Figure 1 A circuit diagram of a power supply circuit according to some embodiments of this application is shown, such as... Figure 1 As shown, 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.

[0028] The power supply device 110 is used to output a first voltage signal; the input terminal of the charge pump 120 is connected to the power supply device 110 and is used to convert the first voltage signal into a second voltage signal; the first conversion circuit 130 is connected to the output terminal of the charge pump 120; at least two second conversion circuits 140 are connected in parallel, and the first input terminals of the at least two second conversion circuits 140 are connected to the output terminal of the charge pump 120, and the second input terminals of the at least two second conversion circuits 140 are connected to the power supply device 110; the controller 150 is connected to the charge pump 120, and the controller 150 is used for:

[0029] Based on the voltage value of load 200, the operating state of load 200 is determined; based on the operating state, the first conversion circuit 130 is controlled to supply power to load 200 through the second voltage signal, and the second conversion circuit 140 is controlled to supply power to load 200 through the target voltage signal; wherein, the target voltage signal is either the first voltage signal or the second voltage signal.

[0030] In this embodiment, 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. The controller 150 can adjust the connection positions of the multiple second conversion circuits 140 according to the operating state of the load 200 of the power supply circuit 100 through the bypass function of the charge pump 120. This improves the overall efficiency of the power supply circuit 100 under light load conditions and ensures that the output voltage drop is minimized under dynamic load conditions, achieving optimal dynamic load characteristics. This power supply circuit 100 achieves high efficiency under light load conditions while simultaneously ensuring performance under dynamic heavy load 200, and does not require hardware support for a multi-phase unbalanced inductor architecture.

[0031] Specifically, the power supply circuit 100 supplies power to the baseband and XPU (processor unit) in the mobile phone system. The XPU can be a CPU (core processor) or a GPU (graphics processor). The power supply device 110 can be the phone's battery or a power supply device 110 composed of a battery and other voltage regulation circuits, providing electrical energy. The input terminal of the charge pump 120 is connected to the power supply device 110, and 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. The second input terminal of the second conversion circuit 140 is connected to the power supply device 110. The charge pump 120, through a bypass function, can selectively turn on the first or second input terminals of at least two of the second conversion circuits 140, thereby selectively connecting at least two of the second conversion circuits 140 to the output terminal of the power supply device 110, or selectively connecting at least two of the second conversion circuits 140 to the output terminal of the charge pump 120. The controller 150 monitors the operating status of the load 200 and, based on different operating statuses, adjusts and switches the positions connected to at least two second conversion circuits 140 via the charge pump 120.

[0032] The first conversion circuit 130 and the second conversion circuit 140 are selected as Buck circuits (step-down conversion circuits). During the operation of the power supply circuit 100, the first conversion circuit 130 remains connected to the output terminal 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. The controller 150 adjusts the power supply mode by switching the conduction states of the first and second input terminals of at least two of the 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, or it can supply power to the load 200 through the first voltage signal output by the power supply device 110.

[0033] For example, the first conversion circuit 130 is Buck1, and at least two second conversion circuits 140 are Buck2 to BuckN. Figure 2 A schematic diagram of the pulse frequency modulation mode of a load 200 operating in a light load state under steady-state conditions according to some embodiments of this application is shown. When the load 200 is operating in steady-state conditions, Buck1 to BuckN are connected to the output voltage of the charge pump 120. When the load 200 is operating in the light load stage, only Buck1 is working. When the DC load 200 slowly increases or rapidly increases to the automatic phase increase current point, Buck2 to BuckN will turn on successively. The phase switching function can improve the overall efficiency of the power supply circuit 100. The curve of phase 1 is the curve of Buck1 in the on state, and the curve of phase 2 is the curve of Buck2 in the on state. Figure 3A schematic diagram of the pulse frequency modulation mode of a load 200 operating in a dynamic state according to some embodiments of this application is shown. When the load 200 is operating in a dynamic state, Buck2-BuckN are connected to the power supply device 110 through the 4:1 charge pump 120 bypass function. The power supply device 110 can be a network with twice the battery voltage. According to the following formula (1), when the difference between the input voltage and the output voltage increases to 4 times, the equivalent inductance of the Buck circuit decreases to 1 / 4. When the equivalent inductance decreases, the dynamic load performance of the load 200 will be greatly improved. That is, when a fast large current demand arrives, Buck2 to BuckN connected to the power supply device 110 will be turned on synchronously to ensure that the output voltage drop is minimized and the optimal dynamic load 200 characteristics are achieved. Among them, the curve of phase 1 is the curve of Buck1 in the turned-on state, and the curve of phase 2 is the curve of Buck2 in the turned-on state. It should be noted that in the steady state, when the current of load 200 changes, the voltage of load 200 will not change significantly. In the dynamic state, when the current of load 200 changes, the voltage of load 200 will change accordingly.

[0034] For example, the battery voltage ranges from 3.5V to 4.45V, and the inductance of the Buck circuit selected by the first conversion circuit 130 and the second conversion circuit 140 ranges from 0.1uH to 1uH.

[0035] Formula (1) is as follows:

[0036] (Vin-Vout)=L×di / dt;

[0037] Where Vin is the input voltage, Vout is the output voltage, di / dt is the rate of change of current, and L is the inductance value.

[0038] Figure 4 A schematic diagram of a charge pump 120 bypass according to some embodiments of this application is shown, such as... Figure 4 As shown, when MOS1 and MOS2 are turned on, the charge pump 120 connects at least two second conversion circuits 140 to the twice battery voltage network output by the power supply device 110 via a bypass.

[0039] Figure 5 The following diagram illustrates the efficiency improvement curves resulting from phase switching with load 200 according to some embodiments of this application, such as... Figure 5As shown, when the load 200 of the power supply circuit 100 is in a steady state, it is under light load. At this time, the first conversion circuit 130 operates. As the DC load 200 increases, at least two second conversion circuits 140 are activated successively, realizing phase switching and thus improving the overall efficiency of the power supply circuit 100. The power supply circuit 100 can automatically switch the actual number of operating phases according to the output current: operating in phase 1 under light load, in phase 2 or phase 3 under intermediate load, and in phase N under heavy load. The purpose of automatically switching the number of phases is to achieve a better efficiency curve.

[0040] In this embodiment of the application, a charge pump 120 is provided between the power supply device 110 and the first conversion circuit 130 and the second conversion circuit 140 in the power supply circuit 100. According to the operating state of the load 200 of the power supply circuit 100, the charge pump 120 can select the second conversion circuit 140 to supply power to the load 200 through the first voltage signal or the second voltage signal, so as to ensure the high efficiency of the power supply circuit 100 under light load and the performance of the power supply circuit 100 under dynamic heavy load 200.

[0041] In this embodiment, when load 200 operates under light load for extended periods and heavy load for short periods, it achieves optimized efficiency under light load while ensuring the performance of dynamic load 200. When load 200 operates under heavy load for extended periods and light load for short periods, it provides good heavy load efficiency and dynamic load 200 performance.

[0042] In some embodiments of this application, the first conversion circuit 130 and the second conversion circuit 140 operate at different frequencies.

[0043] In the embodiments of this application, setting the operating frequency of the first conversion circuit 130 and the operating frequency of the second conversion circuit 140 to different frequencies can reduce the steady-state ripple voltage of the power supply circuit 100 and improve the stability of the operation of the power supply circuit 100.

[0044] For example, the operating frequency of the second conversion circuit 140 is higher than the operating frequency of the first conversion circuit 130.

[0045] Specifically, the first conversion circuit 130 is a Buck circuit that remains connected to the output terminal of the charge pump 120, and the second conversion circuit 140 is a Buck circuit that selects whether to connect to the output terminal of the charge pump 120 or to the power supply device 110 via the bypass function of the charge pump 120. That is, the first conversion circuit 130 is only used to power the load 200 through the second voltage signal output by the charge pump 120, while the second conversion circuit 140 can power the load 200 through either the second voltage signal output by the charge pump 120 or the first voltage signal output by the power supply device 110. By setting the operating frequency of the second conversion circuit 140 to be higher than that of the first conversion circuit 130, the steady-state ripple voltage of the power supply circuit 100 is reduced. It should be noted that the input voltage network settings differ; that is, the drain network of the MOSFET in the upper bridge of the Buck circuit. In the entire architecture, the gates of all power MOSFETs need to be uniformly connected to a relatively high voltage network to obtain better on-resistance.

[0046] In some embodiments of this application, the ratio of the input value to the output value of the charge pump 120 is 4:1.

[0047] In this embodiment, by selecting a 4:1 charge pump 120, it is possible to ensure that when the voltage increases by 4 times, the equivalent inductance can be reduced to 1 / 4, thereby enabling the power supply circuit 100 to ensure high efficiency under light load and performance under dynamic heavy load.

[0048] Optionally, the ratio of the input value to the output value of the charge pump can be adjusted according to actual needs, without specific limitations here.

[0049] In some embodiments of this application, when the first input terminal of the second conversion circuit 140 is connected to the charge pump 120, the load 200 is powered by the second voltage signal; when the second input terminal of the second conversion circuit 140 is connected to the power supply device 110, the load 200 is powered by the first voltage signal.

[0050] In this embodiment, the second conversion circuit 140 includes a first input terminal and a second input terminal. The first input terminal of the second conversion circuit 140 is connected to the output terminal of the charge pump 120, and the second input terminal of the second conversion circuit 140 is connected to the output terminal 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 switch between supplying power to the load 200 through a first voltage signal and supplying power to the load 200 through a second voltage signal.

[0051] Specifically, the first input terminal of the second conversion circuit 140 is connected 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 connected to 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.

[0052] In this embodiment of the application, by adjusting the conduction state 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 power to the load 200 by the first voltage signal and supplying power to the load 200 by the second voltage signal.

[0053] In some embodiments of this application, a power supply method is provided, applied to the power supply circuit in any of the above embodiments. Figure 6 A schematic flowchart of a power supply method according to some embodiments of this application is shown, such as... Figure 6 As shown, the power supply methods include:

[0054] Step 602: Determine the operating status of the load based on the load voltage value;

[0055] In this embodiment, the load voltage is continuously monitored during operation. By analyzing the voltage value, it can be determined whether the load is operating in a steady-state or dynamic state. In a steady-state state, the load voltage does not change significantly when the load current changes, while in a dynamic state, the load voltage changes accordingly when the load current changes.

[0056] For example, the current and voltage values ​​at the load are continuously collected, and the load is determined to be operating in a steady state or a dynamic state based on the changes in the current and voltage values.

[0057] Step 604: Based on the operating state, 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.

[0058] The target voltage signal is either the first voltage signal or the second voltage signal.

[0059] In this embodiment, 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 after converting the first voltage signal. The first conversion circuit remains connected to the output terminal of the charge pump and continuously supplies power to the load through the second voltage signal. Through the bypass function of the charge pump, the first or second voltage signal is selected as the target voltage signal to supply power to the load based on the operating state of the load.

[0060] Specifically, when the load is operating in a steady state, both the first and second conversion circuits are connected to the output voltage of the charge pump, meaning that both the first and second conversion circuits supply power to the load via a second voltage signal. When the load is operating in a dynamic state, the first conversion circuit is connected to the output voltage of the charge pump, and multiple second conversion circuits are connected to the power supply device. That is, the first conversion circuit supplies power to the load via a second voltage signal, and the second conversion circuits supply power to the load via a first voltage signal.

[0061] In this embodiment of the application, a charge pump is provided between the power supply device and the first and second conversion circuits in the power supply circuit. According to the operating state of the load of the power supply circuit, the charge pump can select the second conversion circuit to supply power to the load through the first voltage signal or the second voltage signal, so as to ensure the high efficiency of the power supply circuit under light load and the performance of the power supply circuit under dynamic heavy load.

[0062] In this embodiment, under conditions where the load operates at a light load for a long time and at a heavy load for a short time, the efficiency under light load is optimized while ensuring the performance under dynamic load. Under conditions where the load operates at a heavy load for a long time and at a light load for a short time, good efficiency under heavy load and performance under dynamic load can be provided.

[0063] In some embodiments of this application, based on the operating state, controlling the first conversion circuit to supply power to the load via a second voltage signal, and controlling the second conversion circuit to supply power to the load via a target voltage signal, includes:

[0064] When the load is operating in a steady state, the target conversion circuit controls the load to supply power through a second voltage signal, wherein the target conversion circuit is at least one of the first conversion circuit and the second conversion circuit.

[0065] In the technical solution of this application, if the voltage value at the load does not change significantly when the current at the load changes, the load is determined to be in a steady state. In the steady state, as the current changes, either the first conversion circuit or the first and second conversion circuits supply power to the load through a second voltage signal.

[0066] Specifically, when the load is operating in a steady state, both the first and second conversion circuits are connected to the output of the charge pump, supplying power to the load through the second voltage signal output by the charge pump. Depending on the current magnitude, either the first conversion circuit is activated, or both the first and second conversion circuits are activated to supply power to the load through the second voltage signal.

[0067] In this embodiment of the application, when the power supply circuit supplies power to a steady-state load, the power supply efficiency of the power supply circuit is improved when the load is a steady-state load by connecting both the first conversion circuit and the second conversion circuit to the output terminal of the charge pump.

[0068] In some embodiments of this application, when the load is operating in a steady state, the control target conversion circuit supplies power to the load via a first voltage signal, including:

[0069] When the load current is less than the preset current, the first conversion circuit supplies power to the load through the second voltage signal; when the load current is greater than or equal to the preset current, the first conversion circuit and at least one second conversion circuit supply power to the load through the second voltage signal.

[0070] In this embodiment, the preset current value is the automatic phase-increase current point. The power supply circuit continuously monitors the current value at the load. When the current value is less than the preset current value, only the first conversion circuit supplies power to the load through the second voltage signal. When the current value is greater than or equal to the preset current value, the second conversion circuit is activated, and both the first and second conversion circuits supply power to the load through the second voltage signal.

[0071] It should be noted that when the load current is greater than the preset current value, the number of second conversion circuits activated varies depending on the load current value. When the load is lightly loaded, only the first conversion circuit is activated to supply power to the load, and as the current increases, multiple second circuits are gradually activated to ensure high efficiency under light load conditions.

[0072] For example, the first conversion circuit is Buck1, and at least two second conversion circuits are Buck2 to BuckN. When the load is operating in a steady state, Buck1 to BuckN are connected to the output voltage of the charge pump. When the load is operating in a light load phase, only Buck1 is working. When the DC load increases slowly or rapidly to the automatic phase-increasing current point, Buck2 to BuckN will turn on successively. The phase switching function can improve the overall efficiency of the power supply circuit.

[0073] In this embodiment, when the load is operating in a steady state, the controller can continuously detect the current value at the load. When the current value is lower than the preset current value, the controller supplies power to the load only through the first conversion circuit. When the current value is higher than the preset current value, the second conversion circuit is turned on and supplies power to the load through the second voltage signal together with the first conversion circuit, thereby improving the overall efficiency of the power supply circuit.

[0074] In some embodiments of this application, the number of second conversion circuits supplying power to the load is positively correlated with the load current value.

[0075] In this embodiment, when the current value at the load exceeds a preset current value, multiple second conversion circuits are activated, working together with the first conversion circuit to supply power to the load via a second voltage signal. As the current value at the load gradually increases, the number of activated second conversion circuits is gradually increased, further ensuring the power supply efficiency of the power supply circuit to the load.

[0076] In some embodiments of this application, based on the operating state, controlling the first conversion circuit to supply power to the load via a second voltage signal, and controlling the second conversion circuit to supply power to the load via a target voltage signal, includes:

[0077] When the load is operating in a dynamic state, the first conversion circuit is controlled to supply power to the load through the second voltage signal; when the current value of the load meets the preset conditions, at least two second conversion circuits are controlled to synchronously supply power to the load through the first voltage signal.

[0078] In this embodiment, the dynamic state is such that when the load current changes, the load voltage changes accordingly. When the load current value meets a preset condition, multiple second conversion circuits are connected to the output voltage of the power supply device through the bypass function of the charge pump. While the first conversion circuit supplies power to the load through the second voltage signal, the first voltage signal output by the power supply device replenishes energy to the load.

[0079] For example, the first conversion circuit is Buck1, and at least two second conversion circuits are Buck2 to BuckN. When the load is operating in a dynamic state, Buck2-BuckN are connected to a power supply, which can be a network with twice the battery voltage, via a charge pump bypass function. When the difference between the input and output voltages increases to four times, the equivalent inductance of the Buck circuit decreases to 1 / 4. When the equivalent inductance decreases, the dynamic load performance of the load is significantly improved.

[0080] In this embodiment of the application, when the power supply circuit supplies power to the dynamic load, since the voltage value at the load will change with the current value at the load, the second conversion circuit is directly connected to the output voltage of the power supply device through the charge pump, which ensures that the output voltage changes minimally when the current increases significantly, thereby improving the power supply effect of the power supply circuit to the dynamic load.

[0081] In some embodiments of this application, the preset condition includes: the increase in the load current value is greater than a preset increase value.

[0082] In this embodiment, when the load is detected to be a dynamic load, the first conversion circuit supplies power to the load through the second voltage signal at the beginning of the power supply phase. At this time, multiple second conversion circuits remain in the off state. When the current increases significantly, that is, when the increase in the load current value is detected to be greater than the preset increase value, multiple second conversion circuits are turned on simultaneously to reduce the equivalent inductance. When the equivalent inductance is reduced, the dynamic load performance of the load will be greatly improved. That is, when a fast large current demand arrives, multiple second conversion circuits connected to the power supply device will be turned on simultaneously to ensure that the output voltage drop is minimized and to achieve the optimal dynamic load characteristics.

[0083] The power supply method provided in this application can be executed by a power supply device. This application uses an example of a power supply device executing the power supply method to illustrate the power supply device provided in this application.

[0084] In some embodiments of this application, a power supply device is provided, applied to the power supply circuit in any of the above embodiments. Figure 7 A structural block diagram of a power supply device 700 according to some embodiments of this application is shown, such as... Figure 7 As shown, the power supply device 700 includes:

[0085] The determination module 702 is used to determine the operating status of the load based on the load voltage value;

[0086] The power supply module 704 is used to control the first conversion circuit to supply power to the load through the second voltage signal based on the operating state, and to control the second conversion circuit to supply power to the load through the target voltage signal.

[0087] The target voltage signal is either the first voltage signal or the second voltage signal.

[0088] In this embodiment of the application, a charge pump is provided between the power supply device and the first and second conversion circuits in the power supply circuit. According to the operating state of the load of the power supply circuit, the charge pump can select the second conversion circuit to supply power to the load through the first voltage signal or the second voltage signal, so as to ensure the high efficiency of the power supply circuit under light load and the performance of the power supply circuit under dynamic heavy load.

[0089] In this embodiment, under conditions where the load operates at a light load for a long time and at a heavy load for a short time, the efficiency under light load is optimized while ensuring the performance under dynamic load. Under conditions where the load operates at a heavy load for a long time and at a light load for a short time, good efficiency under heavy load and performance under dynamic load can be provided.

[0090] In some embodiments of this application, the power supply module 704 is used to control the target conversion circuit to supply power to the load through a second voltage signal when the load is operating in a steady state, wherein the target conversion circuit is at least one of a first conversion circuit and a second conversion circuit.

[0091] In this embodiment of the application, when the power supply circuit supplies power to a steady-state load, the power supply efficiency of the power supply circuit is improved when the load is a steady-state load by connecting both the first conversion circuit and the second conversion circuit to the output terminal of the charge pump.

[0092] In some embodiments of this application, the power supply module 704 is used to supply power to the load through a second voltage signal when the current value of the load is less than a preset current value.

[0093] The power supply module 704 is used to supply power to the load via a second voltage signal when the load current value is greater than or equal to a preset current value, by a first conversion circuit and at least one second conversion circuit.

[0094] In this embodiment, when the load is operating in a steady state, the controller can continuously detect the current value at the load. When the current value is lower than the preset current value, the controller supplies power to the load only through the first conversion circuit. When the current value is higher than the preset current value, the second conversion circuit is turned on and supplies power to the load through the second voltage signal together with the first conversion circuit, thereby improving the overall efficiency of the power supply circuit.

[0095] In some embodiments of this application, the number of second conversion circuits supplying power to the load is positively correlated with the load current value.

[0096] In this embodiment, when the current value at the load exceeds a preset current value, multiple second conversion circuits are activated, working together with the first conversion circuit to supply power to the load via a second voltage signal. As the current value at the load gradually increases, the number of activated second conversion circuits is gradually increased, further ensuring the power supply efficiency of the power supply circuit to the load.

[0097] In some embodiments of this application, the power supply module 704 is used to control the first conversion circuit to supply power to the load through a second voltage signal when the load is operating in a dynamic state.

[0098] The power supply module 704 is used to control at least two second conversion circuits to synchronously supply power to the load through a first voltage signal when the load current value meets the preset conditions.

[0099] In this embodiment of the application, when the power supply circuit supplies power to the dynamic load, since the voltage value at the load will change with the current value at the load, the second conversion circuit is directly connected to the output voltage of the power supply device through the charge pump, which ensures that the output voltage changes minimally when the current increases significantly, thereby improving the power supply effect of the power supply circuit to the dynamic load.

[0100] In some embodiments of this application, the preset condition includes: the increase in the load current value is greater than a preset increase value.

[0101] In this embodiment, when the load is detected to be a dynamic load, the first conversion circuit supplies power to the load through the second voltage signal at the beginning of the power supply phase. At this time, multiple second conversion circuits remain in the off state. When the current increases significantly, that is, when the increase in the load current value is detected to be greater than the preset increase value, multiple second conversion circuits are turned on simultaneously to reduce the equivalent inductance. When the equivalent inductance is reduced, the dynamic load performance of the load will be greatly improved. That is, when a fast large current demand arrives, multiple second conversion circuits connected to the power supply device will be turned on simultaneously to ensure that the output voltage drop is minimized and to achieve the optimal dynamic load characteristics.

[0102] The power supply device in this application embodiment can be an electronic device or a component within an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, PDA, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television set (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the device.

[0103] The power supply device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit the specific operating system used.

[0104] The power supply device provided in this application embodiment can realize the various processes implemented in the above method embodiments, and will not be described again here to avoid repetition.

[0105] Optionally, embodiments of this application also provide an electronic device. Figure 8 Structural block diagrams of electronic devices according to some embodiments of this application are shown, such as Figure 8 As shown, the electronic device 800 includes a processor 802, a memory 804, and a program or instructions stored in the memory 804 and executable on the processor 802. When the program or instructions are executed by the processor 802, they implement the various processes of the above method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0106] It should be noted that the electronic devices in the embodiments of this application include the aforementioned mobile electronic devices and non-mobile electronic devices.

[0107] Figure 9 A schematic diagram of the hardware structure of an electronic device for implementing some embodiments of this application.

[0108] The electronic device 900 includes, but is not limited to, components such as: 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.

[0109] Those skilled in the art will understand that the electronic device 900 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 9 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0110] The processor 910 is used to determine the operating status of the load based on the voltage value of the load.

[0111] The processor 910 is used to control the first conversion circuit to supply power to the load through the second voltage signal based on the operating state, and to control the second conversion circuit to supply power to the load through the target voltage signal.

[0112] The target voltage signal is either the first voltage signal or the second voltage signal.

[0113] In this embodiment of the application, a charge pump is provided between the power supply device and the first and second conversion circuits in the power supply circuit. According to the operating state of the load of the power supply circuit, the charge pump can select the second conversion circuit to supply power to the load through the first voltage signal or the second voltage signal, so as to ensure the high efficiency of the power supply circuit under light load and the performance of the power supply circuit under dynamic heavy load.

[0114] In this embodiment, under conditions where the load operates at a light load for a long time and at a heavy load for a short time, the efficiency under light load is optimized while ensuring the performance under dynamic load. Under conditions where the load operates at a heavy load for a long time and at a light load for a short time, good efficiency under heavy load and performance under dynamic load can be provided.

[0115] Furthermore, the processor 910 is configured to control the target conversion circuit to supply power to the load via a second voltage signal when the load is operating in a steady state, wherein the target conversion circuit is at least one of a first conversion circuit and a second conversion circuit.

[0116] In this embodiment of the application, when the power supply circuit supplies power to a steady-state load, the power supply efficiency of the power supply circuit is improved when the load is a steady-state load by connecting both the first conversion circuit and the second conversion circuit to the output terminal of the charge pump.

[0117] Furthermore, the processor 910 is configured to supply power to the load via a second voltage signal when the load current value is less than a preset current value.

[0118] The processor 910 is used to supply power to the load via a second voltage signal when the load current value is greater than or equal to a preset current value.

[0119] In this embodiment, when the load is operating in a steady state, the controller can continuously detect the current value at the load. When the current value is lower than the preset current value, the controller supplies power to the load only through the first conversion circuit. When the current value is higher than the preset current value, the second conversion circuit is turned on and supplies power to the load through the second voltage signal together with the first conversion circuit, thereby improving the overall efficiency of the power supply circuit.

[0120] Furthermore, the number of second conversion circuits supplying power to the load is positively correlated with the load's current value.

[0121] In this embodiment, when the current value at the load exceeds a preset current value, multiple second conversion circuits are activated, working together with the first conversion circuit to supply power to the load via a second voltage signal. As the current value at the load gradually increases, the number of activated second conversion circuits is gradually increased, further ensuring the power supply efficiency of the power supply circuit to the load.

[0122] Furthermore, the processor 910 is used to control the first conversion circuit to supply power to the load via a second voltage signal when the load is operating in a dynamic state;

[0123] The processor 910 is used to control at least two second conversion circuits to synchronously supply power to the load via a first voltage signal when the load current value meets a preset condition.

[0124] In this embodiment of the application, when the power supply circuit supplies power to the dynamic load, since the voltage value at the load will change with the current value at the load, the second conversion circuit is directly connected to the output voltage of the power supply device through the charge pump, which ensures that the output voltage changes minimally when the current increases significantly, thereby improving the power supply effect of the power supply circuit to the dynamic load.

[0125] Furthermore, the preset conditions include: the increase in the load current value is greater than the preset increase value.

[0126] In this embodiment, when the load is detected to be a dynamic load, the first conversion circuit supplies power to the load through the second voltage signal at the beginning of the power supply phase. At this time, multiple second conversion circuits remain in the off state. When the current increases significantly, that is, when the increase in the load current value is detected to be greater than the preset increase value, multiple second conversion circuits are turned on simultaneously to reduce the equivalent inductance. When the equivalent inductance is reduced, the dynamic load performance of the load will be greatly improved. That is, when a fast large current demand arrives, multiple second conversion circuits connected to the power supply device will be turned on simultaneously to ensure that the output voltage drop is minimized and to achieve the optimal dynamic load characteristics.

[0127] It should be understood that, in this embodiment, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The GPU 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which 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. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0128] The memory 909 can be used to store software programs and various data. The memory 909 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include volatile memory or non-volatile memory, or both. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 909 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0129] Processor 910 may include one or more processing units; optionally, processor 910 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0130] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0131] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0132] This application also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0133] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0134] This application provides a computer program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above method embodiments and achieve the same technical effects. To avoid repetition, it will not be described again here.

[0135] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0136] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.

[0137] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A power supply circuit, characterized in that, The power supply circuit is used to supply power to the load, and the power supply circuit includes: Power supply device, used to output the first voltage signal; A charge pump, the input terminal of which is connected to the power supply device, is used to convert the first voltage signal into a second voltage signal; A first conversion circuit is connected to the output terminal of the charge pump; At least two second conversion circuits are connected in parallel, and the first input terminal of the at least two second conversion circuits is connected to the output terminal of the charge pump, and the second input terminal of the at least two second conversion circuits is connected to the power supply device; A controller, connected to the charge pump, is configured to: determine the operating state of the load based on the voltage value of the load; based on the operating state, use the second voltage signal as the input of the first conversion circuit and control the first conversion circuit to supply power to the load; and use a target voltage signal as the input of the second conversion circuit and control the second conversion circuit to supply power to the load; wherein the target voltage signal is either the first voltage signal or the second voltage signal. Specifically, based on the operating state, the second voltage signal is used as the input to the first conversion circuit to control the first conversion circuit to supply power to the load, and the target voltage signal is used as the input to the second conversion circuit to control the second conversion circuit to supply power to the load, including: When the load is operating in a steady state, the second voltage signal is used as the input of the target conversion circuit, and the target conversion circuit is controlled to supply power to the load, wherein the target conversion circuit is the first conversion circuit or the first conversion circuit and at least one of the second conversion circuits; When the load is operating in a dynamic state, the second voltage signal is used as the input of the first conversion circuit, and the first conversion circuit is controlled to supply power to the load. When the current value of the load meets the preset conditions, the first voltage signal is used as the input of the at least two second conversion circuits, and the at least two second conversion circuits are controlled to synchronously supply power to the load. The preset condition includes: the increase in the current value of the load is greater than a preset increase value.

2. The power supply circuit according to claim 1, characterized in that, The first conversion circuit and the second conversion circuit operate at different frequencies.

3. The power supply circuit according to claim 1, characterized in that, The ratio of the input value to the output value of the charge pump is 4:

1.

4. The power supply circuit according to any one of claims 1 to 3, characterized in that, When the first input terminal of the second conversion circuit is connected to the charge pump, the second voltage signal is used as the input of the second conversion circuit and power is supplied to the load. When the second input terminal of the second conversion circuit is connected to the power supply device, the first voltage signal is used as the input of the second conversion circuit and power is supplied to the load.

5. A power supply method, characterized in that, The power supply circuit applied to any one of claims 1 to 4, wherein the power supply circuit is connected to a load, and the power supply method comprises: The operating status of the load is determined based on the voltage value of the load; Based on the operating state, the second voltage signal is used as the input of the first conversion circuit, and the first conversion circuit is controlled to supply power to the load; and the target voltage signal is used as the input of the second conversion circuit, and the second conversion circuit is controlled to supply power to the load; wherein, the target voltage signal is either the first voltage signal or the second voltage signal. Specifically, based on the operating state, the second voltage signal is used as the input to the first conversion circuit to control the first conversion circuit to supply power to the load, and the target voltage signal is used as the input to the second conversion circuit to control the second conversion circuit to supply power to the load, including: When the load is operating in a steady state, the second voltage signal is used as the input of the target conversion circuit, and the target conversion circuit is controlled to supply power to the load, wherein the target conversion circuit is the first conversion circuit or the first conversion circuit and at least one of the second conversion circuits; When the load is operating in a dynamic state, the second voltage signal is used as the input of the first conversion circuit, and the first conversion circuit is controlled to supply power to the load. When the current value of the load meets the preset conditions, the first voltage signal is used as the input of the at least two second conversion circuits, and the at least two second conversion circuits are controlled to synchronously supply power to the load. The preset condition includes: the increase in the current value of the load is greater than a preset increase value.

6. The power supply method according to claim 5, characterized in that, When the load is operating in a steady state, the second voltage signal is used as the input to the target conversion circuit, and the target conversion circuit is controlled to supply power to the load, including: If the current value of the load is less than the preset current value, the second voltage signal is used as the input of the first conversion circuit, and the first conversion circuit is controlled to supply power to the load. When the current value of the load is greater than or equal to a preset current value, the second voltage signal is used as the input of the first conversion circuit and at least one second conversion circuit, and the first conversion circuit and at least one second conversion circuit are controlled to supply power to the load.

7. The power supply method according to claim 6, characterized in that, The number of the second conversion circuits that supply power to the load is positively correlated with the current value of the load.

8. A power supply device, characterized in that, The power supply circuit applied to any one of claims 1 to 4, wherein the power supply circuit is connected to a load, and the power supply device comprises: The determination module is used to determine the operating status of the load based on the voltage value of the load; A power supply module is configured to, based on the operating state, use the second voltage signal as the input of the first conversion circuit and control the first conversion circuit to supply power to the load, and use a target voltage signal as the input of the second conversion circuit and control the second conversion circuit to supply power to the load; wherein the target voltage signal is either the first voltage signal or the second voltage signal. The power supply module is used to use the second voltage signal as the input of the target conversion circuit when the load is operating in a steady state, and to control the target conversion circuit to supply power to the load, wherein the target conversion circuit is the first conversion circuit or the first conversion circuit and at least one second conversion circuit. The power supply module is used to use the second voltage signal as the input of the first conversion circuit when the load is operating in a dynamic state, and to control the first conversion circuit to supply power to the load. The power supply module is used to use the first voltage signal as the input of the at least two second conversion circuits when the current value of the load meets the preset conditions, and to control the at least two second conversion circuits to supply power to the load synchronously. The preset condition includes: the increase in the current value of the load is greater than a preset increase value.

9. An electronic device, characterized in that, include: 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 the steps of the method as described in any one of claims 5 to 7.

10. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or instructions are executed by the processor, they implement the steps of the method as described in any one of claims 5 to 7.

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