A soft start circuit, method, device, and medium

Abstract

The application belongs to the field of computers and particularly relates to a slow start circuit, method, device and medium. The slow start circuit comprises a comparison module and a functional capacitor module. The comparison module is configured to determine the equivalent capacitance of a target circuit through the functional capacitor module, and determine a target capacitance value based on the equivalent capacitance of the target circuit, a target voltage and a target slow start time, and send the target capacitance value to the functional capacitor module. The functional capacitor module is configured to provide a capacitance equal to the target capacitance value to the target circuit based on the target capacitance value sent by the comparison module. Through the slow start circuit provided by the application, the equivalent capacitance of a target circuit connected to the slow start circuit is automatically detected, and a target capacitance value meeting the needs of target slow start is automatically calculated according to the equivalent capacitance. The embedded adjustable capacitor module in the slow start circuit is set with the target capacitance value, and a capacitance meeting the target capacitance value is automatically generated.

Description

Technical Field

[0001] This invention belongs to the field of computer science, and specifically relates to a soft-start circuit, method, device, and medium. Background Technology

[0002] Traditionally, a typical power processing system mainly consists of three parts: a power converter, a switching driver, and a controller. Other components include filtering circuits, feedback circuits, and protection circuits. The power supply architecture on traditional server motherboards is primarily a Buck Converter, which comprises a controller, power converter, switching driver circuit, and feedback and filtering circuits, forming a complete power supply circuit. In addition to the modules mentioned above, for a power converter to operate normally, it must also have no abnormal short circuits in its output impedance, normal startup power signal timing, and no overcurrent during startup.

[0003] Therefore, situations such as output short circuits or excessive soft-start current may prevent normal power-on. Commercially available power converters primarily rely on designers to determine the output capacitor size and the soft-start capacitor's placement to control the output voltage rise time. This reduces the risk of accidental triggering of the protection function during power-on, ensuring that the starting current, under a given configuration, does not exceed the protection point and thus prevent the power converter from shutting down.

[0004] However, once the circuit is set up, it is difficult to apply to scenarios with flexible requirements for soft-start voltage and soft-start time. That is, once the soft-start voltage and time change, the corresponding soft-start circuit needs to be remade, and it cannot automatically and flexibly match different soft-start requirements.

[0005] Therefore, an effective solution is urgently needed to address the above problems. Summary of the Invention

[0006] To address the above problems, this invention proposes a soft-start circuit, comprising a comparator module and a functional capacitor module, wherein:

[0007] The comparison module is configured to determine the equivalent capacitance of the target circuit through the functional capacitor module, and to determine the target capacitance value based on the equivalent capacitance of the target circuit, the target voltage, the target soft-start time, and the constant current value, and to send the target capacitance value to the functional capacitor module.

[0008] The functional capacitor module is configured to provide the target circuit with a capacitor of equal value to the target capacitance based on the target capacitance value sent by the comparison module.

[0009] In some embodiments of the present invention, the functional capacitor module further includes:

[0010] A reference capacitor module is electrically connected to the target circuit and configured to provide a capacitor with a fixed capacitance value to the target circuit. In some embodiments of the invention, the comparison module is further configured to:

[0011] The equivalent capacitance of the target circuit is calculated based on the voltage difference between the reference capacitor module and the voltage difference output by the target circuit within a unit time.

[0012] In some embodiments of the present invention, the functional capacitor module further includes:

[0013] An embedded adjustable capacitor module is electrically connected to the target circuit and configured to provide the target circuit with a capacitance equal to the target capacitance value based on the target capacitance value output by the comparison module.

[0014] In some embodiments of the present invention, the comparison module is further configured to:

[0015] The system receives the target voltage and soft-start time for the target circuit to start softly, calculates the target capacitance that satisfies the target voltage and soft-start time based on the target voltage, soft-start time, constant current value, and equivalent capacitance of the target circuit, and sends the target capacitance to the embedded adjustable capacitor module.

[0016] Another aspect of the present invention provides a circuit soft-start method, comprising:

[0017] Determine the equivalent capacitance of the target circuit;

[0018] Calculate the target capacitance value that satisfies the target voltage and target soft start time based on the equivalent capacitance of the target circuit, the target voltage, the target soft start time, and the constant current value.

[0019] The capacitance value of the corresponding functional capacitor module is set based on the target capacitance value.

[0020] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit includes:

[0021] Determine whether a reference capacitor exists in the target circuit, and in response to the existence of the reference capacitor, obtain the voltage difference of the reference capacitor within a unit time, and obtain the voltage difference of the target circuit within the unit time.

[0022] The ratio of the reference capacitor to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the reference capacitor by the voltage difference of the target circuit. The equivalent capacitance value of the target circuit is obtained based on the ratio and the capacitance value of the reference capacitor.

[0023] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit further includes:

[0024] In response to the absence of the reference capacitor, a temporary target capacitance value is randomly generated and sent to the embedded adjustable capacitor module to obtain the voltage difference of the embedded adjustable capacitor module per unit time.

[0025] The ratio of the temporary target capacitance value to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the embedded adjustable capacitor module by the voltage difference of the target circuit, and the equivalent capacitance value of the target circuit is obtained based on the ratio and the temporary target capacitance value.

[0026] In some embodiments of the present invention, the method further includes:

[0027] The real-time current value of the target circuit is acquired in real time, and the real-time target capacitance value of the target circuit is calculated based on the real-time current value, the equivalent capacitance of the target circuit, the target voltage, and the target soft start time.

[0028] The capacitance value of the corresponding embedded adjustable capacitor module is dynamically set based on the real-time target capacitance value.

[0029] Another aspect of the present invention provides an electronic device comprising:

[0030] At least one processor; and

[0031] A memory storing computer instructions executable on the processor, which, when executed by the processor, implement the steps of any of the methods described in the above embodiments.

[0032] Another aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of any of the methods described in the above embodiments.

[0033] The present invention proposes a soft-start circuit that automatically detects the equivalent capacitance of the target circuit connected to the soft-start circuit, automatically calculates the target capacitance value that meets the target soft-start requirements based on the equivalent capacitance, and sets the target capacitance value to the embedded adjustable capacitor module in the soft-start circuit to automatically generate a capacitor that meets the target capacitance value. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of a soft-start circuit provided in an embodiment of the present invention;

[0036] Figure 2 This is a partial structural diagram of a soft-start circuit provided in an embodiment of the present invention;

[0037] Figure 3 This is a flowchart illustrating a soft-start method provided in an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of a computer-readable storage medium provided in an embodiment of the present invention. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to specific examples and the accompanying drawings.

[0041] This invention aims to solve the problem that traditional soft-start solutions cannot flexibly handle different soft-start requirements. In traditional buck converters, to simply implement the soft-start function, a constant current source and an external output capacitor are required. When the current source is connected to the capacitor, the constant current source charges the capacitor, causing its voltage to rise. When the voltage rises to the internal reference voltage of the chip, the output voltage also reaches the reference voltage level. A constant current source circuit charges the soft-start circuit, achieving the purpose of soft-start by changing the start-up time of the reference voltage. Other feedback circuits following the reference voltage also change accordingly. The output voltage is determined by the reference voltage level, which in turn determines the soft-start time through the soft-start circuit. However, in the traditional implementation, once the soft-start circuit is manufactured, the overall soft-start time of the circuit cannot be changed without replacing the corresponding soft-start capacitor. Therefore, when the required soft-start time or the target voltage for soft-start changes, the traditional implementation cannot flexibly respond.

[0042] To address the above problems, this invention proposes a soft-start circuit, such as... Figure 1As shown, it includes a comparison module 1 and a functional capacitor module 2, wherein:

[0043] The comparison module 1 is configured to determine the equivalent capacitance of the target circuit through the functional capacitor module 2, and to determine the target capacitance value based on the equivalent capacitance of the target circuit, the target voltage, the target soft-start time, and the constant current value, and to send the target capacitance value to the functional capacitor module.

[0044] The functional capacitor module 2 is configured to provide the target circuit with a capacitor of the same value as the target capacitance based on the target capacitance value sent by the comparison module 1.

[0045] In some embodiments of the present invention, the target circuit refers to a traditional circuit that requires a soft start. The soft start circuit proposed in the present invention can directly replace the soft start module in the traditional design. The difference is that the comparison module of the present invention needs to obtain the output voltage of the output terminal of the target circuit, and at the same time provides an interface that can receive external input or set the target voltage and the target soft start time, so as to receive different soft start requirements for the target circuit.

[0046] Furthermore, in some embodiments of the present invention, after the soft-start circuit provided by the present invention is connected to the target circuit, the comparison module 1 determines the equivalent capacitance of the target circuit based on the functional capacitor module 2. After obtaining the target voltage and target soft-start time input by the user or other devices through the corresponding interface, the total soft-start capacitance that satisfies the target voltage and target soft-start time is calculated according to the formula CV=IT, where C refers to the total capacitance that satisfies the target voltage and target soft-start time, V is the target voltage, I refers to the constant current of the current target circuit, and T represents the target soft-start time. Then, the target capacitance value to be set is obtained by subtracting the equivalent capacitance of the target circuit and the fixed capacitance of the functional capacitor module from the total capacitance.

[0047] Furthermore, the target capacitance value is sent to the functional capacitor module 2, which generates the target capacitance value, ultimately making the total capacitance value of the entire target circuit equal to the total capacitance C calculated above.

[0048] In some embodiments of the present invention, the functional capacitor module 2 further includes:

[0049] A reference capacitor module 21 is electrically connected to the target circuit and is configured to provide the target circuit with a capacitor of a fixed capacitance value.

[0050] In some embodiments of the present invention, the comparison module 1 is further configured to:

[0051] The equivalent capacitance of the target circuit is calculated based on the voltage difference between the reference capacitor module and the voltage difference output by the target circuit within a unit time.

[0052] like Figure 2 As shown, in some embodiments of the present invention, the functional capacitor module 2 is provided with a reference capacitor module 21, which is a fixed capacitor, that is, the capacitance value is fixed and the capacitance value is known by the comparison module 1.

[0053] Furthermore, the comparison module 1 calculates the equivalent capacitance of the entire target circuit, excluding the soft-start circuit proposed in this invention, using the reference capacitor module 21 as a reference.

[0054] Specifically, the voltage change of the reference capacitor module 21 and the voltage change of the target circuit output are obtained per unit time, and the corresponding voltage difference is calculated respectively. Then, the ratio of the voltage difference of the reference capacitor module to the voltage difference of the target circuit output is used as the ratio of the capacitance value of the reference capacitor module to the equivalent capacitance of the target circuit, and the equivalent capacitance value of the target circuit is further calculated based on this ratio.

[0055] In some embodiments of the present invention, the functional capacitor module 21 further includes:

[0056] An embedded adjustable capacitor module 22 is electrically connected to the target circuit and is configured to provide the target circuit with a capacitance equal to the target capacitance value based on the target capacitance value issued by the comparison module 1.

[0057] In some embodiments of the present invention, the comparison module 1 is further configured to:

[0058] The system receives the target voltage and soft-start time for the target circuit to start softly, calculates the target capacitance that satisfies the target voltage and soft-start time based on the target voltage, soft-start time, constant current value and the equivalent capacitance of the target circuit, and sends the target capacitance to the embedded adjustable capacitor module 22.

[0059] In some embodiments of the present invention, as described above, after obtaining the equivalent capacitance of the target circuit, the comparison module 1 can calculate the total capacitance value of the target circuit that satisfies the target voltage and soft start time according to the calculation formula CV=IT, and further obtain the target capacitance value, and then send the target capacitance value to the embedded adjustable capacitor module 22.

[0060] The embedded adjustable module 22 has multiple capacitors of different sizes connected in parallel, and the embedded adjustable module 22 selects to turn on or off the capacitors of different sizes connected in parallel according to different target capacitance values.

[0061] like Figure 3 As shown, another aspect of the present invention provides a circuit soft-start method, comprising:

[0062] Step S1: Determine the equivalent capacitance of the target circuit;

[0063] Step S2: Calculate the target capacitance value that satisfies the target voltage and target soft start time based on the equivalent capacitance, target voltage, target soft start time and constant current value of the target circuit;

[0064] Step S3: Set the capacitance value of the corresponding functional capacitor module based on the target capacitance value.

[0065] As mentioned earlier, the equivalent capacitance of the target circuit is first determined based on the electrical properties of the specific target circuit.

[0066] After determining the equivalent capacitance of the target circuit, the constant current, target voltage, and target soft-start time of the target circuit are obtained according to the calculation formula CV=IT. The target capacitance value is then sent to the embedded adjustable capacitor module 22 to make adaptive adjustments to the current target circuit.

[0067] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit includes:

[0068] Determine whether a reference capacitor exists in the target circuit; in response to the presence of the reference capacitor, obtain the voltage difference of the reference capacitor within a unit time, and obtain the voltage difference of the target circuit within the unit time.

[0069] The ratio of the reference capacitor to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the reference capacitor by the voltage difference of the target circuit. The equivalent capacitance value of the target circuit is obtained based on the ratio and the capacitance value of the reference capacitor.

[0070] In some embodiments of the present invention, when determining the equivalent capacitance of the target circuit, it is first determined whether there is a reference capacitor. If there is a reference capacitor, the ratio of the reference capacitor to the equivalent capacitance of the corresponding target circuit is obtained by the voltage change of the reference capacitor per unit time and the output voltage change of the target circuit per unit time, and then the equivalent capacitance of the target circuit is obtained.

[0071] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit further includes:

[0072] In response to the absence of the reference capacitor, a temporary target capacitance value is randomly generated and sent to the embedded adjustable capacitor module 22 to obtain the voltage difference of the embedded adjustable capacitor module 22 within a unit time.

[0073] Divide the voltage difference of the embedded adjustable capacitor module 22 and the voltage difference of the target circuit to obtain the ratio of the temporary target capacitance value to the equivalent capacitance of the target circuit, and obtain the equivalent capacitance value of the target circuit based on the ratio and the temporary target capacitance value.

[0074] Furthermore, when no reference capacitor is available, a temporary target capacitor value can be randomly set for the embedded adjustable capacitor module to set a temporary capacitor to replace the reference capacitor as a reference. The equivalent capacitance of the target circuit can be obtained in the same way as the reference capacitor.

[0075] In some embodiments of the present invention, the method further includes:

[0076] The real-time current value of the target circuit is acquired in real time, and the real-time target capacitance value of the target circuit is calculated based on the real-time current value, the equivalent capacitance of the target circuit, the target voltage, and the target soft start time.

[0077] The capacitance value of the corresponding embedded adjustable capacitor module is dynamically set based on the real-time target capacitance value.

[0078] In some embodiments of the present invention, the corresponding target capacitance value can also be dynamically calculated in real time or at time intervals by acquiring the real-time current value of the target circuit, and the target capacitance value can be sent to the embedded adjustable capacitor module to set and realize the corresponding target capacitance.

[0079] The soft-start circuit proposed in this invention automatically calculates the equivalent capacitance of the target circuit when it is connected to the target circuit. Then, based on the target voltage and target soft-start time set according to the soft-start requirements, it calculates the corresponding target capacitance value and sends the target capacitance value to the embedded adjustable capacitor module to set and generate a capacitor with the same target capacitance value, which is then connected to the target circuit to meet the target soft-start requirements of the target circuit.

[0080] like Figure 4 As shown, another aspect of the present invention also provides an electronic device comprising:

[0081] At least one processor 2001; and

[0082] Memory 2002 stores computer instructions 2003 executable on processor 2001, wherein the instructions 2003, when executed by processor 2001, constitute a circuit soft-start method, comprising:

[0083] Determine the equivalent capacitance of the target circuit;

[0084] Calculate the target capacitance value that satisfies the target voltage and target soft start time based on the equivalent capacitance of the target circuit, the target voltage, the target soft start time, and the constant current value.

[0085] The capacitance value of the corresponding functional capacitor module is set based on the target capacitance value.

[0086] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit includes:

[0087] Determine whether a reference capacitor exists in the target circuit, and in response to the existence of the reference capacitor, obtain the voltage difference of the reference capacitor within a unit time, and obtain the voltage difference of the target circuit within the unit time.

[0088] The ratio of the reference capacitor to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the reference capacitor by the voltage difference of the target circuit. The equivalent capacitance value of the target circuit is obtained based on the ratio and the capacitance value of the reference capacitor.

[0089] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit further includes:

[0090] In response to the absence of the reference capacitor, a temporary target capacitance value is randomly generated and sent to the embedded adjustable capacitor module to obtain the voltage difference of the embedded adjustable capacitor module per unit time.

[0091] The ratio of the temporary target capacitance value to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the embedded adjustable capacitor module by the voltage difference of the target circuit, and the equivalent capacitance value of the target circuit is obtained based on the ratio and the temporary target capacitance value.

[0092] In some embodiments of the present invention, the method further includes:

[0093] The real-time current value of the target circuit is acquired in real time, and the real-time target capacitance value of the target circuit is calculated based on the real-time current value, the equivalent capacitance of the target circuit, the target voltage, and the target soft start time.

[0094] The capacitance value of the corresponding embedded adjustable capacitor module is dynamically set based on the real-time target capacitance value.

[0095] like Figure 5 As shown, another aspect of the present invention provides a computer-readable storage medium 401 storing a computer program 402, which, when executed by a processor, provides a circuit soft-start method, comprising:

[0096] Determine the equivalent capacitance of the target circuit;

[0097] Calculate the target capacitance value that satisfies the target voltage and target soft start time based on the equivalent capacitance of the target circuit, the target voltage, the target soft start time, and the constant current value.

[0098] The capacitance value of the corresponding functional capacitor module is set based on the target capacitance value.

[0099] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit includes:

[0100] Determine whether a reference capacitor exists in the target circuit, and in response to the existence of the reference capacitor, obtain the voltage difference of the reference capacitor within a unit time, and obtain the voltage difference of the target circuit within the unit time.

[0101] The ratio of the reference capacitor to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the reference capacitor by the voltage difference of the target circuit. The equivalent capacitance value of the target circuit is obtained based on the ratio and the capacitance value of the reference capacitor.

[0102] In some embodiments of the present invention, determining the equivalent capacitance of the target circuit further includes:

[0103] In response to the absence of the reference capacitor, a temporary target capacitance value is randomly generated and sent to the embedded adjustable capacitor module to obtain the voltage difference of the embedded adjustable capacitor module per unit time.

[0104] The ratio of the temporary target capacitance value to the equivalent capacitance of the target circuit is obtained by dividing the voltage difference of the embedded adjustable capacitor module by the voltage difference of the target circuit, and the equivalent capacitance value of the target circuit is obtained based on the ratio and the temporary target capacitance value.

[0105] In some embodiments of the present invention, the method further includes:

[0106] The real-time current value of the target circuit is acquired in real time, and the real-time target capacitance value of the target circuit is calculated based on the real-time current value, the equivalent capacitance of the target circuit, the target voltage, and the target soft start time.

[0107] The capacitance value of the corresponding embedded adjustable capacitor module is dynamically set based on the real-time target capacitance value.

[0108] Finally, it should be noted that those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc. The embodiments of the computer program can achieve the same or similar effects as any of the corresponding foregoing method embodiments.

[0109] Furthermore, typically, the devices and equipment disclosed in the embodiments of this invention can be various electronic terminal devices, such as mobile phones, personal digital assistants (PDAs), tablet computers (PADs), smart TVs, etc., or they can be large terminal devices, such as servers. Therefore, the scope of protection disclosed in the embodiments of this invention should not be limited to a specific type of device or equipment. The client disclosed in the embodiments of this invention can be applied to any of the above-mentioned electronic terminal devices in the form of electronic hardware, computer software, or a combination of both.

[0110] Furthermore, the method disclosed in the embodiments of the present invention can also be implemented as a computer program executed by a CPU, which may be stored in a computer-readable storage medium. When the computer program is executed by the CPU, it performs the functions defined in the method disclosed in the embodiments of the present invention.

[0111] Furthermore, the above-described method steps and system units can also be implemented using a controller and a computer-readable storage medium for storing a computer program that enables the controller to perform the functions of the above-described steps or units.

[0112] Furthermore, it should be understood that the computer-readable storage medium (e.g., memory) described herein can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. By way of example, and not limitation, non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM), which can act as external cache memory. By way of example, and not limitation, RAM may be available in various forms, such as synchronous RAM (DRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct Rambus RAM (DRRAM). The storage devices disclosed herein are intended to include, but are not limited to, these and other suitable types of memory.

[0113] Those skilled in the art will also understand that the various exemplary logic blocks, modules, circuits, and algorithm steps described in conjunction with the disclosure herein can be implemented as electronic hardware, computer software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, the functionality of the various illustrative components, blocks, modules, circuits, and steps has been generally described. Whether this functionality is implemented as software or as hardware depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in various ways for each specific application, but such implementation decisions should not be construed as departing from the scope of the embodiments disclosed herein.

[0114] The various exemplary logic blocks, modules, and circuits described herein can be implemented or performed using the following components designed to perform the functions described herein: general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of these components. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP, and / or any other such configuration.

[0115] The steps of the methods or algorithms described herein can be directly incorporated into hardware, into a software module executed by a processor, or a combination of both. The software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from or write information to the storage medium. In an alternative, the storage medium can be integrated with the processor. The processor and storage medium can reside in an ASIC. The ASIC can reside in a user terminal. In an alternative, the processor and storage medium can reside as discrete components in the user terminal.

[0116] In one or more exemplary designs, the functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored as one or more instructions or code on or transmitted via a computer-readable medium. A computer-readable medium includes computer storage media and communication media, including any medium that facilitates the transfer of a computer program from one location to another. A storage medium may be any available medium accessible to a general-purpose or special-purpose computer. By way of example, and not limitation, the computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, disk storage devices or other magnetic storage devices, or any other medium that may be used to carry or store the required program code in the form of instructions or data structures and is accessible to a general-purpose or special-purpose computer or a general-purpose or special-purpose processor. Furthermore, any connection may be appropriately referred to as a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the aforementioned coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are all included in the definition of a medium. As used herein, disks and optical discs include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks typically reproduce data magnetically, while optical discs reproduce data optically using lasers. Combinations of the above should also be included within the scope of computer-readable media.

Claims

1. A soft-start circuit, characterized in that, It includes a comparator module and a functional capacitor module, wherein: The comparison module is configured to determine the equivalent capacitance of the target circuit through the functional capacitor module, and to determine the target capacitance value based on the equivalent capacitance of the target circuit, the target voltage, the target soft-start time, and the constant current value, and to send the target capacitance value to the functional capacitor module. The functional capacitor module is configured to provide the target circuit with a capacitor of equal value to the target capacitance based on the target capacitance value sent by the comparison module; The comparison module is configured to: Determine whether a reference capacitor exists in the target circuit; in response to the presence of the reference capacitor, obtain the voltage difference of the reference capacitor within a unit time, and obtain the voltage difference of the target circuit within the unit time. Divide the voltage difference of the reference capacitor by the voltage difference of the target circuit to obtain the ratio of the reference capacitor to the equivalent capacitance of the target circuit, and obtain the equivalent capacitance value of the target circuit based on the ratio and the capacitance value of the reference capacitor.

2. The soft-start circuit according to claim 1, characterized in that, The functional capacitor module also includes: A reference capacitor module is electrically connected to the target circuit and configured to provide the target circuit with a capacitor of a fixed capacitance value.

3. The soft-start circuit according to claim 2, characterized in that, The comparison module is further configured to: The equivalent capacitance of the target circuit is calculated based on the voltage difference between the reference capacitor module and the voltage difference output by the target circuit within a unit time.

4. The soft-start circuit according to claim 2, characterized in that, The functional capacitor module also includes: An embedded adjustable capacitor module is electrically connected to the target circuit and configured to provide the target circuit with a capacitance equal to the target capacitance value based on the target capacitance value output by the comparison module.

5. The soft-start circuit according to claim 4, characterized in that, The comparison module is further configured to: The system receives the target voltage and soft-start time for the target circuit to start softly, calculates the target capacitance value that satisfies the target voltage and soft-start time based on the target voltage, soft-start time, constant current value, and equivalent capacitance of the target circuit, and sends the target capacitance value to the embedded adjustable capacitor module.

6. A circuit soft-start method, characterized in that, include: Determine the equivalent capacitance of the target circuit; Calculate the target capacitance value that satisfies the target voltage and target soft start time based on the equivalent capacitance of the target circuit, the target voltage, the target soft start time, and the constant current value. Set the capacitance value of the corresponding functional capacitor module based on the target capacitance value; The step of determining the equivalent capacitance of the target circuit includes: Determine whether a reference capacitor exists in the target circuit; in response to the presence of the reference capacitor, obtain the voltage difference of the reference capacitor within a unit time, and obtain the voltage difference of the target circuit within the unit time. Divide the voltage difference of the reference capacitor by the voltage difference of the target circuit to obtain the ratio of the reference capacitor to the equivalent capacitance of the target circuit, and obtain the equivalent capacitance value of the target circuit based on the ratio and the capacitance value of the reference capacitor.

7. The method according to claim 6, characterized in that, The step of determining the equivalent capacitance of the target circuit further includes: In response to the absence of the reference capacitor, a temporary target capacitance value is generated and sent to the embedded adjustable capacitor module to obtain the voltage difference of the embedded adjustable capacitor module per unit time. Divide the voltage difference of the embedded adjustable capacitor module and the voltage difference of the target circuit to obtain the ratio of the temporary target capacitance value to the equivalent capacitance of the target circuit, and obtain the equivalent capacitance value of the target circuit based on the ratio and the temporary target capacitance value.

8. The method according to claim 6, characterized in that, Also includes: The real-time current value of the target circuit is acquired in real time, and the real-time target capacitance value of the target circuit is calculated based on the real-time current value, the equivalent capacitance of the target circuit, the target voltage, and the target soft start time. The capacitance value of the corresponding embedded adjustable capacitor module is dynamically set based on the real-time target capacitance value.

9. An electronic device, characterized in that, include: At least one processor; as well as A memory storing computer instructions executable on the processor, which, when executed by the processor, implement the steps of the method according to any one of claims 6-8.

10. A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method according to any one of claims 6-8.

Images