Power supply device and electronic apparatus

Abstract

The invention relates to the field of power supply, in particular to a power supply device and electronic equipment. The power supply device comprises a time delay switch module which is used for slowly increasing power supply current when the power supply device is powered on and controlling the time delay switch module device to be switched on or switched off under the control of a control module; and the control module is electrically connected with the time-delay switch module and is used for acquiring the input voltage and the output voltage of the power supply device and controlling the time-delay switch module to be switched on or switched off based on the input voltage and the output voltage.

Description

Technical Field

[0001] The present disclosure relates to the field of power supply, and more specifically, to a power supply device and an electronic device. Background Art

[0002] In the highly sophisticated and technology-intensive field of the semiconductor industry, the production and testing of products are crucial, as they directly determine the performance and quality of the final product. In these complex processes, stable and accurate power supply to the product is an indispensable part. As the "lifeline" of semiconductor production equipment and testing environment, the stability and reliability of the power supply system play a decisive role in ensuring the smooth progress of the production process. If the power supply system fails or has errors, it will not only fail to accurately reflect the true performance of the product, but may also damage the product to be tested due to abnormal current or voltage during the test process, thereby causing single or batch production accidents. Summary of the invention

[0003] An object of the present disclosure is to provide a power supply device to solve the power supply safety problem in the prior art.

[0004] According to one aspect of the present disclosure, there is provided a power supply device, comprising:

[0005] A time-delay switch module, used to slowly increase the power supply current when the power supply device is powered on, and to control the time-delay switch module device to be turned on or off under the control of the control module;

[0006] The control module is electrically connected to the delay switch module, and is used to collect the input voltage and output voltage of the power supply device, and control the delay switch module to be turned on or off based on the input voltage and output voltage.

[0007] Optionally, the delay switch module includes a delay circuit and a switch circuit; wherein,

[0008] The delay circuit includes a first capacitor and a first resistor connected in series, the first capacitor is electrically connected to the positive electrode of the input end of the power supply device, and the first resistor is connected to the negative electrode of the output end of the power supply device and is grounded.

[0009] Optionally, the switch circuit comprises: a first NMOS and a second NMOS; wherein,

[0010] The drain of the first NMOS is connected to the positive electrode of the output terminal of the power supply device, the gate of the first NMOS is connected to the position between the first capacitor and the first resistor, and the source of the first NMOS is electrically connected to the positive electrode of the input terminal;

[0011] The drain of the second NMOS is connected to the position between the first capacitor and the first resistor, the gate of the second NMOS is electrically connected to the control module and the positive electrode of the input end respectively, the gate of the second NMOS is connected to or disconnected from the ground under the control of the control module, and the source of the second NMOS is electrically connected to the positive electrode of the input end.

[0012] Optionally, the switching circuit also includes: a first switching tube, the first switching tube is electrically connected to the control module, the first switching tube is used to receive a control signal sent by the control module, and control the gate of the second NMOS to be grounded based on the control signal to turn on the second NMOS.

[0013] Optionally, the device further comprises:

[0014] The boost module is arranged between the delay switch module and the input end of the power supply device, and is used to increase the voltage inputted by the input end.

[0015] Optionally, the boost module includes:

[0016] A boost chip, wherein the input end of the boost chip is connected to the positive electrode of the input end of the power supply device, the ground end of the boost chip is connected to the negative electrode of the input end of the power supply device and is grounded, the power compensation end of the boost chip is connected to the positive electrodes of the first inductor and the first diode in sequence, the output end of the boost chip is connected to the positive electrode of the first diode, and the feedback end of the boost chip is connected to a position between the second resistor and the third resistor;

[0017] A first diode, wherein a cathode of the first diode is connected to the delay switch module;

[0018] a second resistor and a third resistor, wherein the second resistor and the third resistor are connected in series, the second resistor is connected to the cathode of the first diode, and the third resistor is connected to the cathode of the input end of the power supply device;

[0019] A second capacitor, wherein two ends of the second capacitor are respectively connected to the cathode of the first diode and the cathode of the input end of the power supply device.

[0020] Optionally, the control module is further used to collect the voltage between the boost module and the delay switch module;

[0021] The method of controlling the delay switch module to be turned on or off based on the input voltage and the output voltage includes:

[0022] The delay switch module is controlled to be turned on or off according to the input voltage, the output voltage and the voltage between the boost module and the delay switch module.

[0023] Optionally, the power supply device includes: an indication module connected to the control module;

[0024] The step of controlling the delay switch module to be turned on or off according to the input voltage, the output voltage, and the voltage between the boost module and the delay switch module comprises:

[0025] When the input voltage, the output voltage and the voltage between the boost module and the delay switch module all meet preset conditions, controlling the delay switch module to be turned on;

[0026] When any one of the input voltage, the output voltage and the voltage between the boost module and the delay switch module does not meet a preset condition, the indication module is controlled to provide an abnormal indication to a user.

[0027] Optionally, the device further includes at least one of an overcurrent protection module, an overvoltage protection module and an anti-reverse protection module.

[0028] According to a second aspect of the present disclosure, a power supply device is provided, comprising the power supply device described in any one of the first aspects.

[0029] One technical effect of the present disclosure is that a power supply device is provided, including: a delay switch module, which is used to slowly increase the power supply current when the power supply device is powered on, so that the current during power supply rises slowly to prevent transient voltage glitches from breaking down the product under test; a control module, which can collect the input voltage and output voltage of the power supply device, and control the delay switch module to be turned on or off based on the input voltage and output voltage, and can automatically disconnect the circuit when the input voltage or output voltage is abnormal to protect the safety of subsequent products under test.

[0030] Other features and advantages of the embodiments of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the embodiments of the present disclosure.

[0032] Figure 1 is a schematic structural diagram of a power supply device according to an embodiment;

[0033] Figure 2 is a schematic diagram of an example of a power supply device according to an embodiment;

[0034] Figure 3 is a circuit diagram of a control module collecting voltage according to an embodiment; DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0037] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] The present application embodiment discloses a power supply device 100, such as Figure 1 As shown, it includes: a delay switch module 101, which is used to slowly increase the power supply current when the power supply device is powered on, and under the control of the control module, controls the delay switch module device to be turned on or off; a control module 102, which is electrically connected to the delay switch module, is used to collect the input voltage and output voltage of the power supply device, and control the delay switch module to be turned on or off based on the input voltage and the output voltage.

[0041] In an embodiment of the present application, the delay switch module can be arranged between the input and output ends of the power supply device, and can slowly increase the power supply current of the power supply device from 0 to power the subsequent output end device to prevent transient voltage glitches from breaking down the product.

[0042] In this embodiment, the input end of the power supply device is connected to a power supply, and the output end is connected to a product to be powered.

[0043] In the embodiment of the present application, the delay switch module is electrically connected to the control module, and under the control of the control module, the delay switch module can be controlled to be turned on or off to realize the turning on and off of the power supply device.

[0044] In the embodiment of the present application, the control module may include a control chip or a single chip microcomputer.

[0045] In an embodiment of the present application, the control module can collect the input voltage and output voltage of the power supply device, and control the on or off of the delay switch module based on the input voltage and output voltage. In one example, the threshold intervals of the input voltage and the output voltage can be set respectively, and it is determined whether the input voltage and the output voltage are within the threshold interval. When the input and output voltages are within the threshold interval, the delay switch module can be controlled to be turned on, and when the input and output voltages are not within the threshold interval, the delay switch module can be controlled to be turned off.

[0046] In this example, a power supply device is provided, including: a delay switch module, which is used to slowly increase the power supply current when the power supply device is powered on, so that the current during power supply rises slowly to prevent transient voltage glitches from breaking down the product under test; a control module, which can collect the input voltage and output voltage of the power supply device, and control the delay switch module to turn on or off based on the input voltage and output voltage. When the input voltage or output voltage is abnormal, the circuit can be automatically disconnected to protect the safety of subsequent products under test.

[0047] In an example of this embodiment, the delay switch module includes a delay circuit and a switch circuit; wherein the delay circuit includes a first capacitor and a first resistor connected in series, the first capacitor is electrically connected to the positive pole of the input end of the power supply device, and the first resistor is connected to the negative pole of the output end of the power supply device and grounded.

[0048] In this embodiment, the delay switch module may include a delay circuit and a switch circuit. The delay circuit is mainly responsible for delaying the increase of the power supply current to the target current value. The switch circuit is mainly responsible for controlling the opening and closing of the power supply device.

[0049] In one example, if Figure 2 As shown, the delay circuit includes a first capacitor and a first resistor, one end of the first capacitor is electrically connected to the positive electrode of the input end of the power supply device, and the other end is connected to the first resistor, and the other end of the first resistor is connected to the negative electrode of the output end. When the input end inputs a voltage, the first capacitor starts to charge through the resistor, so that the current rises slowly.

[0050] In another example of the present embodiment, the switching circuit includes: a first NMOS and a second NMOS; wherein the drain of the first NMOS is connected to the positive electrode of the output end of the power supply device, the gate of the first NMOS is connected to the position between the first capacitor and the first resistor, and the source of the first NMOS is electrically connected to the positive electrode of the input end; the drain of the second NMOS is connected to the position between the first capacitor and the first resistor, the gate of the second NMOS is electrically connected to the control module and the positive electrode of the input end respectively, the gate of the second NMOS is connected to or disconnected from the ground under the control of the control module, and the source of the second NMOS is electrically connected to the positive electrode of the input end.

[0051] In one example, the first NMOS and the second NMOS are electrically connected to the positive electrode of the input terminal by directly connecting to the positive electrode, or in other embodiments with a boost module, they are electrically connected to the positive electrode of the input terminal through the boost module. The connection method of the first NMOS and the second NMOS, i.e., Q1 and Q2, can be as follows: Figure 2 As shown. The gate of Q2 can be grounded or disconnected from the ground under the control of the control module. When Q2 is grounded, Q2 is turned on to charge the capacitor, and at the same time, a voltage is output to the gate of Q1 to turn on Q1, so that the delay switch module and the power supply device are turned on. When Q2 is disconnected from the ground, Q1 cannot be turned on either, so that the delay switch module and the power supply device are disconnected as a whole.

[0052] In this example, a current-limiting inductor R5 may be further provided between the gate of Q2 and the positive electrode of the input terminal to prevent the second NMOS from being damaged by a large current.

[0053] In an example of this embodiment, the switching circuit also includes: a first switching tube, the first switching tube is electrically connected to the control module, the first switching tube is used to receive a control signal sent by the control module, and control the gate of the second NMOS to be grounded based on the control signal to make the second NMOS turned on.

[0054] In such Figure 2 In the example shown, the switch circuit also includes a first switch tube, that is, Figure 2 The transistor Q3 in Figure 2 In the example, when the control module outputs a low level, the transistor is turned on, the second NMOS is grounded, the power supply device is turned on, and the power supply is normally supplied. On the contrary, when the control module outputs a high level, the power supply device disconnects the power supply. In this embodiment, the first switch tube can be configured with a corresponding load and a current limiting resistor according to the circuit requirements, that is, Figure 2 R4, R6, and R7 in it.

[0055] In an example of this embodiment, the device further includes: a boost module, which is arranged between the delay switch module and the input end of the power supply device and is used to increase the voltage input to the input end.

[0056] In some cases, a boost module may be loaded in the power supply device to adapt to higher voltage back-end products. In this embodiment, the boost module is arranged between the input end and the delay switch module.

[0057] In an example of the present embodiment, the boost module includes: a boost chip, the input end of the boost chip is connected to the positive pole of the input end of the power supply device, the ground end of the boost chip is connected to the negative pole of the input end of the power supply device and is grounded, the complementary power end of the boost chip is connected to the positive poles of the first inductor and the first diode in sequence, the output end of the boost chip is connected to the positive pole of the first diode, and the feedback end of the boost chip is connected to the position between the second resistor and the third resistor; a first diode, the negative pole of the first diode is connected to the delay switch module; a second resistor and a third resistor, the second resistor and the third resistor are connected in series, the second resistor is connected to the negative pole of the first diode, and the third resistor is connected to the negative pole of the input end of the power supply device; a second capacitor, the two ends of the second capacitor are respectively connected to the negative pole of the first diode and the negative pole of the input end of the power supply device.

[0058] In this embodiment, the connection method of the boost module can be as follows: Figure 2 As shown, the boost chip U1 can be set according to actual needs, such as Figure 2 As shown in the example, the input terminal of the boost chip is IN, the ground terminal is GND, the power supply terminal is EN, the output terminal is SW, and the feedback segment is FB. The boost chip can boost the voltage at the input terminal of the power supply device and output it to the subsequent circuit from the output terminal. At the same time, the voltage collected at the feedback terminal can be used to determine whether the boosted voltage meets the requirements through the voltage division method. If the requirements are not met, the voltage can be further increased through the power supply terminal to meet the requirements.

[0059] In this example, the inductor and capacitor in the boost module can be used for filtering. Meanwhile, those skilled in the art can adjust the target voltage after boosting by adjusting the resistance values ​​of the second resistor and the third resistor.

[0060] In one example of this embodiment, the control module is also used to collect the voltage between the boost module and the delay switch module; and control the delay switch module to be turned on or off based on the input voltage and the output voltage, including: controlling the delay switch module to be turned on or off according to the input voltage, the output voltage and the voltage between the boost module and the delay switch module.

[0061] In this example, if Figure 3 As shown, the user can collect the voltage value of the corresponding resistor by setting a similar circuit structure at each end of the circuit, and then calculate the corresponding input voltage, output voltage and voltage between the boost module and the delay switch module (boosted voltage) at each end by the voltage division method.

[0062] In one example, the delay switch module is controlled to be turned on or off according to the input voltage, the output voltage and the voltage between the boost module and the delay switch module, including: when the input voltage, the output voltage and the voltage between the boost module and the delay switch module all meet preset conditions, the delay switch module is controlled to be turned on.

[0063] In this example, the delay switch module can be controlled to be turned on and power can be supplied to subsequent devices normally only when the input voltage, output voltage and the voltage between the boost module and the delay switch module meet their respective conditions, that is, when all parts of the circuit are normal.

[0064] In one example of this embodiment, the control module further includes an indication module, which may include indication devices such as light, sound or vibration. When any one of the input voltage, output voltage and the voltage between the boost module and the delay switch module does not meet the preset conditions, it proves that there may be a problem in the circuit, so the control module can control the indication module to provide an abnormal indication to the user. For example, in the form of light, sound, or vibration.

[0065] In an example of this embodiment, the device further includes at least one of an overcurrent protection module, an overvoltage protection module, and an anti-reverse protection module.

[0066] In this embodiment, as shown in the figure, the power supply device can set an overcurrent protection module in the circuit according to actual needs, such as Figure 2 The fuse U3, the overvoltage protection module, such as diodes D2 and D4, and the anti-reverse protection module, namely D3 and D4 in the figure.

[0067] In addition, a filter circuit and a filter capacitor, such as C3, etc., may also be provided in the circuit.

[0068] In an example of this embodiment, the control unit may also be provided with an access detection circuit, and the control unit may detect whether a device is connected to the output terminal through the access detection circuit. After a device is connected, the control unit starts to work.

[0069] The embodiment of the present application further provides an electronic device, comprising any power supply device in the power supply device embodiment. To avoid repetition, it will not be described here.

[0070] Each embodiment in the present disclosure is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device and equipment embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0071] The above describes specific embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0072] The embodiments of the present disclosure may be systems, methods and / or computer program products. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the embodiments of the present disclosure.

[0073] A computer-readable storage medium may be a tangible device that can hold and store instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples of computer-readable storage media (a non-exhaustive list) include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as a punch card or a raised structure in a groove on which instructions are stored, and any suitable combination of the foregoing. As used herein, a computer-readable storage medium is not to be interpreted as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through a wire.

[0074] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, optical fiber transmissions, wireless transmissions, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in the computer-readable storage medium in each computing / processing device.

[0075] The computer program instructions for performing the operation of the embodiments of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as "C" language or similar programming languages. Computer-readable program instructions may be executed completely on a user's computer, partially on a user's computer, as an independent software package, partially on a user's computer, partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., using an Internet service provider to connect via the Internet). In some embodiments, an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), may be personalized by utilizing the state information of a computer-readable program instruction, and the electronic circuit may execute a computer-readable program instruction, thereby realizing various aspects of the embodiments of the present disclosure.

[0076] Various aspects of the embodiments of the present disclosure are described herein with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer-readable program instructions.

[0077] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device that implements the functions / actions specified in one or more boxes in the flowchart and / or block diagram is generated. These computer-readable program instructions can also be stored in a computer-readable storage medium, and these instructions cause the computer, programmable data processing device, and / or other equipment to work in a specific manner, so that the computer-readable medium storing the instructions includes a manufactured product, which includes instructions for implementing various aspects of the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0078] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operating steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more boxes in the flowchart and / or block diagram.

[0079] The flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of an instruction, and a part of a module, a program segment or an instruction contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or the flowchart, and the combination of the boxes in the block diagram and / or the flowchart can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that it is equivalent to implement it by hardware, implement it by software, and implement it by combining software and hardware.

[0080] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A power supply device, characterized in that: include: A time-delay switch module, used to slowly increase the power supply current when the power supply device is powered on, and to control the time-delay switch module device to be turned on or off under the control of the control module; The control module is electrically connected to the delay switch module, and is used to collect the input voltage and output voltage of the power supply device, and control the delay switch module to be turned on or off based on the input voltage and output voltage.

2. The power supply device according to claim 1, characterized in that: The delay switch module includes a delay circuit and a switch circuit; wherein, The delay circuit includes a first capacitor and a first resistor connected in series, the first capacitor is electrically connected to the positive electrode of the input end of the power supply device, and the first resistor is connected to the negative electrode of the output end of the power supply device and is grounded.

3. The power supply device according to claim 2, characterized in that: The switch circuit includes: a first NMOS and a second NMOS; wherein, The drain of the first NMOS is connected to the positive electrode of the output terminal of the power supply device, the gate of the first NMOS is connected to the position between the first capacitor and the first resistor, and the source of the first NMOS is electrically connected to the positive electrode of the input terminal; The drain of the second NMOS is connected to the position between the first capacitor and the first resistor, the gate of the second NMOS is electrically connected to the control module and the positive electrode of the input end respectively, the gate of the second NMOS is connected to or disconnected from the ground under the control of the control module, and the source of the second NMOS is electrically connected to the positive electrode of the input end.

4. The power supply device according to claim 3, characterized in that: The switch circuit also includes: a first switch tube, which is electrically connected to the control module, and is used to receive a control signal sent by the control module, and control the gate of the second NMOS to be grounded based on the control signal to turn on the second NMOS.

5. The power supply device according to claim 1, characterized in that: The device also includes: The boost module is arranged between the delay switch module and the input end of the power supply device, and is used to increase the voltage inputted by the input end.

6. The power supply device according to claim 5, characterized in that: The boost module comprises: A boost chip, wherein the input end of the boost chip is connected to the positive electrode of the input end of the power supply device, the ground end of the boost chip is connected to the negative electrode of the input end of the power supply device and is grounded, the power compensation end of the boost chip is connected to the positive electrodes of the first inductor and the first diode in sequence, the output end of the boost chip is connected to the positive electrode of the first diode, and the feedback end of the boost chip is connected to a position between the second resistor and the third resistor; A first diode, wherein a cathode of the first diode is connected to the delay switch module; a second resistor and a third resistor, wherein the second resistor and the third resistor are connected in series, the second resistor is connected to the cathode of the first diode, and the third resistor is connected to the cathode of the input end of the power supply device; A second capacitor, wherein two ends of the second capacitor are respectively connected to the cathode of the first diode and the cathode of the input end of the power supply device.

7. The power supply device according to claim 5, characterized in that: The control module is also used to collect the voltage between the boost module and the delay switch module; The method of controlling the delay switch module to be turned on or off based on the input voltage and the output voltage includes: The delay switch module is controlled to be turned on or off according to the input voltage, the output voltage and the voltage between the boost module and the delay switch module.

8. The power supply device according to claim 7, characterized in that: The power supply device includes: an indication module connected to the control module; The step of controlling the delay switch module to be turned on or off according to the input voltage, the output voltage, and the voltage between the boost module and the delay switch module comprises: When the input voltage, the output voltage and the voltage between the boost module and the delay switch module all meet preset conditions, controlling the delay switch module to be turned on; When any one of the input voltage, the output voltage and the voltage between the boost module and the delay switch module does not meet a preset condition, the indication module is controlled to provide an abnormal indication to a user.

9. The power supply device according to any one of claims 1 to 8, characterized in that: The device also includes at least one of an overcurrent protection module, an overvoltage protection module and an anti-reverse protection module.

10. An electronic device, characterized in that: Comprising the power supply device as described in any one of claims 1-9.

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