Power supply control method and device, electronic equipment and storage medium

Abstract

This disclosure provides a power control method, apparatus, electronic device, and storage medium. The charging circuit includes: acquiring the input voltage of a BOOST circuit within the power system during the current control cycle, and acquiring the change in the DC bus voltage during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit; determining a target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change; and controlling the BOOST circuit to switch to the target operating state in the next control cycle. In this embodiment, the output voltage of the BOOST circuit is adjusted to a dynamic voltage, adjusting the bus voltage according to the bus voltage change and the input voltage, thereby ensuring the system efficiency of the power system.

Description

Technical Field

[0001] This disclosure relates to the field of control technology, and in particular to a power control method, apparatus, electronic device, and storage medium. Background Technology

[0002] Wide-input switching power supply systems are typically implemented using a topology that combines a BOOST circuit and a DC-DC converter. (See [link to relevant documentation]). Figure 1 The BOOST circuit can adjust the input voltage V. IN A boost process is performed to give the DC-DC circuit a wider input voltage range.

[0003] In existing power supply systems, the BOOST circuit typically outputs a constant voltage. However, when the input voltage V of the BOOST circuit... IN When the value is small, the efficiency of the BOOST circuit is low, thus reducing the system efficiency. Summary of the Invention

[0004] This disclosure provides a power control method, apparatus, electronic device, and storage medium to solve the above-mentioned technical problems.

[0005] According to a first aspect of this disclosure, a power supply control method is provided, the method comprising:

[0006] The system acquires the input voltage of the BOOST circuit within the power system during the current control cycle, and also acquires the change in the DC bus voltage during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit.

[0007] The target operating state of the BOOST circuit in the next control cycle is determined based on the input voltage and the bus voltage change.

[0008] The BOOST circuit is controlled to switch to the target operating state in the next control cycle.

[0009] Optionally, determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes:

[0010] When the change in bus voltage is greater than or equal to a preset change threshold, and the input voltage is less than or equal to a first preset voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the first operating state; the first operating state refers to the state in which the BOOST circuit controls the bus voltage to increase; and the output voltage of the BOOST circuit in the first operating state is equal to the sum of the preset voltage and the change in bus voltage.

[0011] Optionally, determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes:

[0012] When the change in bus voltage is less than a preset change threshold, and the input voltage is less than or equal to a first preset voltage and greater than the undervoltage protection voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the second operating state; the second operating state refers to the state in which the BOOST circuit controls the bus voltage to decrease; the output voltage of the BOOST circuit in the second operating state follows the input voltage to decrease linearly, and the starting voltage for the linear decrease of the output voltage is the sum of the preset voltage and the change in bus voltage.

[0013] Optionally, determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes:

[0014] When the input voltage is greater than the first preset voltage and less than or equal to the second preset voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the third operating state; the third operating state refers to the state in which the BOOST circuit controls the bus voltage to increase, and the output voltage of the BOOST circuit in the third operating state is the sum of the preset voltage and the change in the bus voltage.

[0015] Optionally, determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes:

[0016] When the input voltage is greater than or equal to the third preset voltage and less than or equal to the fourth preset voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the fourth operating state; the fourth operating state refers to the state in which the BOOST circuit controls the bus voltage to be equal to the system rated voltage; the third preset voltage is greater than the second preset voltage, and the fourth preset voltage is greater than the third preset voltage and less than the system rated voltage; the output voltage of the BOOST circuit in the fourth operating state is the preset voltage.

[0017] Optionally, the difference between the fourth preset voltage and the third preset voltage is greater than or equal to a preset difference threshold.

[0018] Optionally, determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes:

[0019] When the input voltage is greater than or equal to the system rated voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the fifth operating state, which means that the BOOST circuit is operating in the pass-through state.

[0020] According to a second aspect of this disclosure, a power control device is provided, the device comprising:

[0021] The input voltage acquisition module is used to acquire the input voltage of the BOOST circuit in the power system during the current control cycle.

[0022] The voltage change acquisition module is used to acquire the bus voltage change of the DC bus during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit.

[0023] The operating status acquisition module is used to determine the target operating status of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change.

[0024] The working state switching module is used to control the BOOST circuit to switch to the target working state in the next control cycle.

[0025] Optionally, the working status acquisition module includes:

[0026] The first operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the first operating state when the bus voltage change is greater than or equal to a preset change threshold and the input voltage is less than or equal to a first preset voltage; the first operating state refers to the state in which the BOOST circuit controls the bus voltage to increase; and the output voltage of the BOOST circuit in the first operating state is equal to the sum of the preset voltage and the bus voltage change.

[0027] Optionally, the working status acquisition module includes:

[0028] The second operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the second operating state when the bus voltage change is less than a preset change threshold and the input voltage is less than or equal to a first preset voltage and greater than the undervoltage protection voltage; the second operating state refers to the state in which the BOOST circuit controls the bus voltage to decrease; the output voltage of the BOOST circuit in the second operating state decreases linearly with the input voltage, and the starting voltage for the linear decrease of the output voltage is the sum of the preset voltage and the bus voltage change.

[0029] Optionally, the working status acquisition module includes:

[0030] The third operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the third operating state when the input voltage is greater than the first preset voltage and less than or equal to the second preset voltage; the third operating state refers to the state in which the BOOST circuit controls the bus voltage to increase, and the output voltage of the BOOST circuit in the third operating state is the sum of the preset voltage and the change in the bus voltage.

[0031] Optionally, the working status acquisition module includes:

[0032] The fourth operating state determination unit is used to determine that when the input voltage is greater than or equal to the third preset voltage and less than or equal to the fourth preset voltage, the target operating state of the BOOST circuit in the next control cycle is the fourth operating state; the fourth operating state refers to the state in which the BOOST circuit controls the bus voltage to be equal to the system rated voltage; the third preset voltage is greater than the second preset voltage, and the fourth preset voltage is greater than the third preset voltage and less than the system rated voltage; the output voltage of the BOOST circuit in the fourth operating state is the preset voltage.

[0033] Optionally, the difference between the fourth preset voltage and the third preset voltage is greater than or equal to a preset difference threshold.

[0034] Optionally, the working status acquisition module includes:

[0035] The fifth operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the fifth operating state when the input voltage is greater than or equal to the system rated voltage. The fifth operating state refers to the BOOST circuit operating in the pass-through state.

[0036] According to a third aspect of this disclosure, an electronic device is provided, comprising: a power supply system, a processor, and a memory;

[0037] The power system is used to provide electrical energy to the load;

[0038] The memory is used to store computer programs that can be executed by the processor;

[0039] The processor is configured to execute a computer program in the memory to implement the method as described in any of the first aspects.

[0040] According to a fourth aspect of this disclosure, a chip system is provided, including a processing unit and an interface circuit, wherein the processing unit obtains program instructions through the interface circuit, the program instructions are executed by the processing unit, and the processing unit is configured to perform the method as described in any of the first aspects.

[0041] According to a fifth aspect of this disclosure, a non-transitory computer-readable storage medium is provided, which, when an executable computer program in the storage medium is executed by a processor, enables the implementation of the method as described in any of the first aspects.

[0042] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0043] The power control method provided in this embodiment can obtain the input voltage of the BOOST circuit in the power system during the current control cycle, and obtain the change in the DC bus voltage during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit; the target operating state of the BOOST circuit in the next control cycle is determined based on the input voltage and the change in the bus voltage; and the BOOST circuit is controlled to switch to the target operating state in the next control cycle. Thus, in this embodiment, the output voltage of the BOOST circuit is adjusted to a dynamic voltage, adjusting the bus voltage according to the change in the bus voltage and the input voltage, thereby ensuring the system efficiency of the power system.

[0044] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0045] Figure 1 This is a block diagram of a power supply system according to an embodiment of the present disclosure.

[0046] Figure 2 This is a circuit diagram of a BOOST circuit according to an embodiment of the present disclosure.

[0047] Figure 3 This is a flowchart of a power control method according to an embodiment of the present disclosure.

[0048] Figure 4 This is a graph showing the input and output voltages of a BOOST circuit under different operating conditions according to an embodiment of the present disclosure.

[0049] Figure 5 This is a block diagram of a power control device according to an embodiment of the present disclosure.

[0050] Figure 6 This is a block diagram of a chip system according to an embodiment of the present disclosure.

[0051] Figure 7 This is a block diagram of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0052] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0053] To address the aforementioned technical problems, embodiments of this disclosure provide a power control method, apparatus, electronic device, and storage medium.

[0054] The power control method disclosed herein can be applied to the BOOST circuit of a power supply system. In one example, the BOOST circuit can employ... Figure 2 The circuit implementation shown in the example.

[0055] See Figure 2 The BOOST circuit may include a first inductor L1, a second inductor L2, a first capacitor C1, a second capacitor C2, a first diode D1, a second diode D2, a first switching device Q1, and a second switching device Q2. The connection relationship of each device is as follows: Figure 2 As shown. The working principle of this BOOST circuit is as follows:

[0056] (1) Straight-through operating mode. When the first switching device Q1 and the first switching device Q2 are in the (long-term) open state, the first inductor L1 and the second inductor L2 are equivalent to wires. At this time, the voltage across the first capacitor C1 and the second capacitor C2 is the input voltage V. IN At this time, the BOOST circuit operates in direct-through mode, meaning the output voltage of the BOOST circuit is equal to the input voltage.

[0057] (2) Boost Mode. In the first half-cycle, the first switching devices Q1 and Q2 are switched to the ON state, grounding one end of the first inductor L1 and the second inductor L2, thus charging the first inductor L1 and the second inductor L2. In the second half-cycle, the first switching devices Q1 and Q2 are switched to the OFF state, disconnecting one end of the first inductor L1 and the second inductor L2 from ground. At this time, the output voltage of the BOOST circuit is the sum of the input voltage and the inductor voltage. By controlling the switching frequency of the first switching devices Q1 and / or Q2, the BOOST circuit achieves the boost effect.

[0058] It should be noted that this example only describes the pass-through and boost modes of the BOOST circuit to facilitate understanding of the subsequent technical solutions, but does not constitute a limitation on the solution disclosed herein.

[0059] Based on the aforementioned BOOST circuit, this disclosure also provides a power control method. The method involves dynamically adjusting the bus voltage of the DC bus connected to the BOOST circuit to increase the temperature derating of the power devices within the BOOST circuit at the same power level, and to increase the output power of the BOOST circuit while maintaining the same power device derating. See also... Figure 3 The power control method includes steps 31 to 33.

[0060] In step 31, the input voltage of the BOOST circuit in the power system during the current control cycle is obtained, as well as the change in the DC bus voltage during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit.

[0061] In this step, the electronic device can obtain the input voltage of the BOOST circuit in the power system during the current control cycle, or in other words, the input voltage V of the power system. IN It is understood that the input voltage can be obtained by communication between the processor of the electronic device and the power supply system. For example, the processor can have a communication bus with the power supply system, through which the input voltage for each control cycle can be obtained. Alternatively, the electronic device can have a voltage detection circuit that can detect the input voltage of the BOOST circuit. Furthermore, if the input voltage of the power supply system is the battery voltage, the electronic device can have a fuel gauge that can detect the battery voltage, and the processor can obtain the input voltage by communicating with the fuel gauge. Those skilled in the art can choose appropriate solutions based on specific scenarios; where the input voltage can be obtained, the corresponding solution falls within the protection scope of this disclosure.

[0062] In this step, the electronic device can acquire the change in DC bus voltage during the current control cycle. Here, the DC bus refers to the bus connected to the output terminal of the BOOST circuit. Figure 1 The connection wires at both ends of the intermediate bus capacitor Cbus or Figure 2 The connection lines at both ends of the load RL are shown. It is understood that the bus voltage change can be calculated based on the difference between the bus voltage of the current control cycle and the previous control cycle. Since the output voltage of the BOOST circuit can be calculated in each control cycle, the processor can directly read the output voltage record table. Alternatively, a DC bus detection circuit can be set up to detect the voltage on the bus capacitor Cbus as the bus voltage. Those skilled in the art can choose the appropriate scheme for obtaining the bus voltage based on the specific scenario, and the corresponding scheme falls within the protection scope of this disclosure.

[0063] In step 32, the target operating state of the BOOST circuit in the next control cycle is determined based on the input voltage and the bus voltage change.

[0064] In this step, the processor can determine the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change. (See [link]) Figure 4 ,include:

[0065] In one example, when the bus voltage change ΔV of the DC bus is greater than or equal to a preset change threshold ΔVth, and the input voltage V of the BOOST circuit... IN When the voltage is less than or equal to the first preset voltage V1, the processor can determine that the target operating state of the BOOST circuit in the next control cycle is the first operating state; the first operating state refers to the state in which the BOOST circuit controls the bus voltage to increase. Furthermore, the output voltage of the BOOST circuit in the first operating state is equal to the sum of the preset voltage and the change in the bus voltage. For example... Figure 4 As shown in section bc, in the first operating state, the output voltage Vout of the BOOST circuit is equal to the sum of the preset voltage (assuming it is V5) and the bus voltage change ΔV, i.e., Vout = V5 + ΔV. The preset voltage V5 is a voltage value that is less than or close to the system's rated voltage, approximately equal to the minimum value of the system's rated voltage. Thus, in this example, by increasing the energy storage capacity of the DC bus, the risk of transient power outages is reduced, thereby improving the stability of the power supply system.

[0066] In one example, when the bus voltage change ΔV of the DC bus is less than a preset change threshold ΔVth, and the input voltage V of the BOOST circuit... IN Less than or equal to the first preset voltage V1 and greater than the undervoltage protection voltage V INmin At this time, the processor can determine that the target operating state of the BOOST circuit in the next control cycle is the second operating state. The second operating state refers to the state in which the BOOST circuit controls the bus voltage to decrease; in the second operating state, the output voltage of the BOOST circuit decreases linearly following the input voltage, and the starting voltage for this linear decrease is the sum of the preset voltage V5 and the bus voltage change ΔV. For example... Figure 4 As shown in section ba, in the second operating state, the input voltage V of the BOOST circuit is... IN Less than or equal to the first preset voltage V1 and greater than the undervoltage protection voltage V INmin At that time, the input voltage V IN This can be considered as a steady-state state, at which point the DC bus voltage can be reduced. At this point, the input voltage V... IN The voltage can be reduced from the first preset voltage V1 to the undervoltage protection voltage V. INmin Previously, the output voltage Vout of the BOOST circuit started from the initial voltage and increased with the input voltage V. INThe voltage decreases linearly, and the starting voltage is equal to the sum of the preset voltage (let's say V5) and the bus voltage change ΔV. Thus, in this example, by reducing the DC bus voltage, the thermal efficiency of the BOOST voltage at low voltage operation can be improved while ensuring system stability.

[0067] In one example, when the input voltage V of the BOOST circuit IN When the voltage is greater than the first preset voltage V1 and less than or equal to the second preset voltage V2, the processor can determine that the target operating state of the BOOST circuit in the next control cycle is the third operating state. The third operating state refers to the state where the BOOST circuit controls the DC bus voltage to increase, and the output voltage Vout of the BOOST circuit in the third operating state is the sum of the preset voltage V5 and the bus voltage change ΔV. Figure 4 As shown in segment be, the input voltage V within segment be is... IN The range is [V1, V2]. In the third operating state, the input voltage V of the BOOST circuit... IN The system is in a steady state, but the voltage is below the preset voltage V5, or below the system's rated voltage. In this case, the DC bus capacitor stores more energy to ensure system stability under dynamic output load and input conditions. The output voltage Vout of the BOOST circuit is equal to the sum of the preset voltage V5 and the bus voltage change ΔV, i.e., Vout = V5 + ΔV. Thus, in this example, by increasing the DC bus voltage and optimizing the energy storage of the DC bus capacitor, system stability is ensured under dynamic output load and input conditions.

[0068] In one example, when the input voltage V of the BOOST circuit IN When the voltage is greater than or equal to the third preset voltage V3 and less than or equal to the fourth preset voltage V4, the processor can determine that the target operating state of the BOOST circuit in the next control cycle is the fourth operating state. The fourth operating state refers to the state where the BOOST circuit needs to control the DC bus voltage to be equal to the system's rated voltage. The third preset voltage V3 is greater than the second preset voltage V2, and the fourth preset voltage V4 is greater than the third preset voltage V3 but less than the system's rated voltage; the output voltage of the BOOST circuit in the fourth operating state is the preset voltage V5. For example... Figure 4 As shown in segment fg, the input voltage V within segment fg is... IN The range is [V2, V3]. In the fourth operating state, the input voltage V of the BOOST circuit... INIn steady state, the DC bus voltage can be controlled to be as low as possible to ensure the power system efficiency within the rated voltage range. At this time, the output voltage Vout of the BOOST circuit is equal to the preset voltage V5, i.e., Vout = V5. Thus, in this example, by controlling the DC bus voltage within the system's rated voltage range, the system efficiency of the power system is guaranteed.

[0069] In one example, when the input voltage V of the BOOST circuit IN When the system rated voltage is greater than or equal to the system rated voltage (or greater than the preset voltage V5), the processor can determine that the target operating state of the BOOST circuit in the next control cycle is the fifth operating state. The fifth operating state refers to the BOOST circuit operating in a pass-through state. This pass-through state can be found in [reference needed]. Figure 2 The example demonstrates the operating modes of the BOOST circuit. Figure 4 As shown in segment hi, the input voltage V within segment hi is... IN The range is (V5, V INmax In the fifth operating state, the input voltage V of the BOOST circuit... IN In a steady state, the output voltage Vout of the BOOST circuit is approximately equal to the input voltage V. IN That is, Vout≈V IN In this example, switching the BOOST circuit to shoot-through mode ensures the highest efficiency of the power system.

[0070] In one example, the difference between the fourth preset voltage V4 and the third preset voltage is greater than or equal to a preset difference threshold, which can be 3V. This ensures that the fg segment has a certain width, achieving the purpose of isolating the be segment and the hi segment. This helps to avoid the phenomenon of current backflow when the be segment and the hi segment are switched, and improves the reliability of the BOOST circuit.

[0071] In step 33, the BOOST circuit is controlled to switch to the target operating state in the next control cycle.

[0072] In this step, the processor can control the BOOST circuit to switch to the target operating state in the next control cycle. The target operating state can be a first operating state, a second operating state, a third operating state, a fourth operating state, or a fifth operating state.

[0073] Therefore, in this embodiment, the output voltage of the BOOST circuit is adjusted to a dynamic voltage, adjusting the bus voltage according to the bus voltage change and the input voltage to ensure the efficiency of the power supply system. For example, in the first operating state, controlling the output voltage Vout of the BOOST circuit to be V5 + ΔV ensures reliable system operation and avoids the risk of transient power loss, achieving a balance between low-voltage efficiency and system stability. In the second operating state, controlling the output voltage Vout of the BOOST circuit (when the input voltage V5 is within a certain range)... IN During the descent, the voltage decreases linearly from V5 + ΔV, improving the thermal efficiency of the BOOST voltage at low voltage operation while ensuring system stability. In the third operating state, the output voltage of the BOOST circuit is controlled to be Vout = V5 + ΔV, controlling the DC bus capacitor to store more energy and ensuring system stability under dynamic output and input load conditions. In the fourth operating state, the output voltage of the BOOST circuit is controlled to be Vout = V5, keeping the DC bus voltage as low as possible to ensure power efficiency within the rated voltage range. In the fifth operating state, the output voltage of the BOOST circuit is controlled to be Vout ≈ V. IN This reduces losses in the BOOST circuit and helps improve the efficiency of the power supply system.

[0074] Understandably, this disclosure improves the energy decoupling effect of the intermediate bus capacitor by dynamically adjusting the bus voltage of the power supply system, i.e., within the range of the input rated voltage to the undervoltage protection voltage, by increasing the bus voltage of the DC bus; at the same time, it ensures that the BOOST circuit is in a shoot-through state under the rated input voltage, ensuring that the power supply system has high conversion efficiency, thereby ensuring the decoupling of power efficiency and reliability in different operating time dimensions of the system.

[0075] Based on the power control method provided in the embodiments of this disclosure, the embodiments of this disclosure also provide a power control device, see [link to relevant documentation]. Figure 5 ,include:

[0076] The input voltage acquisition module 51 is used to acquire the input voltage of the BOOST circuit in the power supply system during the current control cycle.

[0077] The voltage change acquisition module 52 is used to acquire the bus voltage change of the DC bus during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit.

[0078] The operating status acquisition module 53 is used to determine the target operating status of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change.

[0079] The working state switching module 54 is used to control the BOOST circuit to switch to the target working state in the next control cycle.

[0080] In one embodiment, the working status acquisition module includes:

[0081] The first operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the first operating state when the bus voltage change is greater than or equal to a preset change threshold and the input voltage is less than or equal to a first preset voltage; the first operating state refers to the state in which the BOOST circuit controls the bus voltage to increase; and the output voltage of the BOOST circuit in the first operating state is equal to the sum of the preset voltage and the bus voltage change.

[0082] In one embodiment, the working status acquisition module includes:

[0083] The second operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the second operating state when the bus voltage change is less than a preset change threshold and the input voltage is less than or equal to a first preset voltage and greater than the undervoltage protection voltage; the second operating state refers to the state in which the BOOST circuit controls the bus voltage to decrease; the output voltage of the BOOST circuit in the second operating state decreases linearly with the input voltage, and the starting voltage for the linear decrease of the output voltage is the sum of the preset voltage and the bus voltage change.

[0084] In one embodiment, the working status acquisition module includes:

[0085] The third operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the third operating state when the input voltage is greater than the first preset voltage and less than or equal to the second preset voltage; the third operating state refers to the state in which the BOOST circuit controls the bus voltage to increase, and the output voltage of the BOOST circuit in the third operating state is the sum of the preset voltage and the change in the bus voltage.

[0086] In one embodiment, the working status acquisition module includes:

[0087] The fourth operating state determination unit is used to determine that when the input voltage is greater than or equal to the third preset voltage and less than or equal to the fourth preset voltage, the target operating state of the BOOST circuit in the next control cycle is the fourth operating state; the fourth operating state refers to the state in which the BOOST circuit controls the bus voltage to be equal to the system rated voltage; the third preset voltage is greater than the second preset voltage, and the fourth preset voltage is greater than the third preset voltage and less than the system rated voltage; the output voltage of the BOOST circuit in the fourth operating state is the preset voltage.

[0088] In one embodiment, the difference between the fourth preset voltage and the third preset voltage is greater than or equal to a preset difference threshold.

[0089] In one embodiment, the working status acquisition module includes:

[0090] The fifth operating state determination unit is used to determine the target operating state of the BOOST circuit in the next control cycle as the fifth operating state when the input voltage is greater than or equal to the system rated voltage. The fifth operating state refers to the BOOST circuit operating in the pass-through state.

[0091] It should be noted that the device embodiment provided in this embodiment corresponds to the method embodiment described above. For details, please refer to the content of each method embodiment described above, which will not be repeated here.

[0092] In some possible embodiments, a chip system is also provided, see [link to relevant documentation]. Figure 6 The chip system includes at least one processor 61 and at least one interface circuit 62. The processor 61 and the interface circuit 62 are interconnected via lines. For example, the interface circuit 62 can be used to receive signals from other devices (e.g., the memory of an electronic device). As another example, the interface circuit 62 can be used to send signals to other devices (e.g., the processor 61). Exemplarily, the interface circuit 62 can read instructions stored in memory and send those instructions to the processor 61. When the instructions are executed by the processor 61, the power control device can perform the steps in the above embodiments. Of course, the chip system may also include other discrete devices, and some embodiments of this disclosure do not specifically limit this.

[0093] In one example, interface circuit 62 can obtain data, program instructions, and / or information from the internal storage area of ​​the chip system; it can also obtain data, program instructions, and / or information from outside the chip system. In one example, the chip system also includes memory 63 for storing necessary computer programs and data. It is understood that those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of this disclosure can be implemented by electronic hardware, computer software, or a combination of both. Whether these functions are implemented in hardware or software depends on the specific application and the overall system design requirements. Those skilled in the art can implement the described functions using various methods for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of this disclosure.

[0094] It should be noted that the aforementioned electronic device 700 can be a smartphone, computer, digital broadcasting terminal, tablet device, medical device, fitness equipment, personal digital assistant, etc. (See reference...) Figure 7 The electronic device 700 may include one or more of the following components: processing component 702, memory 704, power supply component 706, multimedia component 708, audio component 710, input / output (I / O) interface 712, sensor component 714, communication component 716, and image acquisition component 718.

[0095] Processing component 702 typically controls the overall operation of electronic device 700, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 702 may include one or more processors 720 to execute computer programs. Furthermore, processing component 702 may include one or more modules to facilitate interaction between processing component 702 and other components. For example, processing component 702 may include a multimedia module to facilitate interaction between multimedia component 708 and processing component 702. In one example, processor 720 may control the switching devices of the charging circuit to switch to an on or off state to achieve the effect of charging battery 13.

[0096] Memory 704 is configured to store various types of data to support the operation of electronic device 700. Examples of such data include computer programs for any application or method operating on electronic device 700, contact data, phone book data, messages, pictures, videos, etc. Memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0097] Power supply component 706 provides power to various components of electronic device 700. Power supply component 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 700. Power supply component 706 may include, for example... Figure 1 The power system shown in the example.

[0098] The multimedia component 708 includes a screen that provides an output interface between the electronic device 700 and the target object.

[0099] In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touchscreen to receive input information from a target object. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation.

[0100] Audio component 710 is configured to output and / or input audio file information. For example, audio component 710 includes a microphone (MIC) configured to receive external audio file information when electronic device 700 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio file information may be further stored in memory 704 or transmitted via communication component 716. In some embodiments, audio component 710 also includes a speaker for outputting audio file information.

[0101] I / O interface 712 provides an interface between processing component 702 and peripheral interface modules, such as keyboards, click wheels, buttons, etc.

[0102] Sensor assembly 714 includes one or more sensors for providing state assessments of various aspects of electronic device 700. For example, sensor assembly 714 can detect the on / off state of electronic device 700, the relative positioning of components (e.g., the display screen and keypad of electronic device 700), changes in position of electronic device 700 or a component, the presence or absence of contact between a target object and electronic device 700, the orientation or acceleration / deceleration of electronic device 700, and temperature changes of electronic device 700. In this example, sensor assembly 714 may include magnetic sensors, gyroscopes, and magnetic field sensors, and may also include inertial sensors, image sensors, etc., wherein the magnetic field sensor includes at least one of the following: a Hall sensor, a thin-film magnetoresistive sensor, and a magnetic fluid accelerometer.

[0103] Communication component 716 is configured to facilitate wired or wireless communication between electronic device 700 and other devices. Electronic device 700 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 716 receives broadcast information or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 716 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0104] In an exemplary embodiment, the electronic device 700 may be implemented by one or more application-specific integrated circuits (ASICs), digital information processors (DSPs), digital information processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0105] In an exemplary embodiment, a non-transitory computer-readable storage medium is also provided, which enables the implementation of the method described above when an executable computer program in the storage medium is executed by a processor.

[0106] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0107] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A power supply control method, characterized in that, The method includes: The system acquires the input voltage of the BOOST circuit within the power system during the current control cycle, and also acquires the change in the DC bus voltage during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit. The target operating state of the BOOST circuit in the next control cycle is determined based on the input voltage and the bus voltage change. The BOOST circuit is controlled to switch to the target operating state in the next control cycle.

2. The method according to claim 1, characterized in that, Determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes: When the change in bus voltage is greater than or equal to a preset change threshold, and the input voltage is less than or equal to a first preset voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the first operating state; the first operating state refers to the state in which the BOOST circuit controls the bus voltage to increase; and the output voltage of the BOOST circuit in the first operating state is equal to the sum of the preset voltage and the change in bus voltage.

3. The method according to claim 1, characterized in that, Determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes: When the change in bus voltage is less than a preset change threshold, and the input voltage is less than or equal to a first preset voltage and greater than the undervoltage protection voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the second operating state; the second operating state refers to the state in which the BOOST circuit controls the bus voltage to decrease; the output voltage of the BOOST circuit in the second operating state follows the input voltage to decrease linearly, and the starting voltage for the linear decrease of the output voltage is the sum of the preset voltage and the change in bus voltage.

4. The method according to claim 1, characterized in that, Determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes: When the input voltage is greater than the first preset voltage and less than or equal to the second preset voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the third operating state; the third operating state refers to the state in which the BOOST circuit controls the bus voltage to increase, and the output voltage of the BOOST circuit in the third operating state is the sum of the preset voltage and the change in the bus voltage.

5. The method according to claim 1, characterized in that, Determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes: When the input voltage is greater than or equal to the third preset voltage and less than or equal to the fourth preset voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the fourth operating state; the fourth operating state refers to the state in which the BOOST circuit controls the bus voltage to be equal to the system rated voltage; the third preset voltage is greater than the second preset voltage, and the fourth preset voltage is greater than the third preset voltage and less than the system rated voltage; the output voltage of the BOOST circuit in the fourth operating state is the preset voltage.

6. The method according to claim 5, characterized in that, The difference between the fourth preset voltage and the third preset voltage is greater than or equal to a preset difference threshold.

7. The method according to claim 1, characterized in that, Determining the target operating state of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change includes: When the input voltage is greater than or equal to the system rated voltage, the target operating state of the BOOST circuit in the next control cycle is determined to be the fifth operating state, which means that the BOOST circuit is operating in the pass-through state.

8. A power control device, characterized in that, The device includes: The input voltage acquisition module is used to acquire the input voltage of the BOOST circuit in the power system during the current control cycle. A voltage change acquisition module is used to acquire the bus voltage change of the DC bus during the current control cycle; the DC bus is connected to the output terminal of the BOOST circuit. The operating status acquisition module is used to determine the target operating status of the BOOST circuit in the next control cycle based on the input voltage and the bus voltage change. The working state switching module is used to control the BOOST circuit to switch to the target working state in the next control cycle.

9. An electronic device, characterized in that, include: Power system, processor, and memory; The power system is used to provide electrical energy to the load; The memory is used to store computer programs that can be executed by the processor; The processor is configured to execute a computer program in the memory to implement the method as described in any one of claims 1 to 7.

10. A chip system, characterized in that, It includes a processing unit and an interface circuit. The processing unit obtains program instructions through the interface circuit, and the program instructions are executed by the processing unit. The processing unit is used to perform the method as described in any one of claims 1 to 7.

11. A non-transitory computer-readable storage medium, characterized in that, When the executable computer program in the storage medium is executed by a processor, it can implement the method as described in any one of claims 1 to 7.

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