Equipment power supply control circuit

Abstract

The utility model discloses an equipment power supply control circuit, comprising a relay module connected with a live wire for equipment power supply; the control module is connected with the relay module and is used for controlling the relay module to be closed; the wireless communication module is connected with the control module and used for sending data to the outside and receiving instructions; and the power supply module is respectively connected with the relay module, the control module and the wireless communication module to supply power, can intelligently switch on and switch off equipment, is not limited by models of various types of equipment, and can perform unified power supply management on a plurality of different types of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of equipment power supply technology, and specifically relates to an equipment power supply control circuit. Background Technology

[0002] Traditional power supply for equipment typically involves powering devices through sockets. However, sockets are manual switches, which lack intelligent power supply capabilities and cannot provide unified management of the power-on time for each device. On the other hand, directly upgrading the equipment to have intelligent power supply would result in high construction and maintenance costs.

[0003] Therefore, how to reduce the cost of smart power supply and manage the power supply of various devices in a unified manner is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems of high cost and inability to uniformly manage the power supply of various devices in the existing technology for intelligent power supply of equipment. To this end, this utility model provides a device power supply control circuit, which includes:

[0005] The relay module is connected to the live wire that powers the device.

[0006] A control module, connected to the relay module, is used to control the relay module to engage;

[0007] A wireless communication module, connected to the control module, is used to send data to the outside and receive instructions;

[0008] The power supply module is connected to the relay module, control module, and wireless communication module respectively to provide power.

[0009] Furthermore, the relay module specifically includes:

[0010] One end of resistor R6 is connected to the control module, and the other end of resistor R6 is connected to the base of transistor Q1. The collector of transistor Q1 is connected to the anode of diode D5 and the other end of the coil, respectively. The cathode of diode D5 and one end of the coil are both connected to a 5V power supply. One end of normally open contact K1 is connected to the live wire of the power supply, and the other end of normally open contact K1 is connected to the live wire of the device power supply. The emitter of transistor Q1 is grounded through resistor R8.

[0011] Furthermore, the control circuit also includes a sampling circuit, which specifically includes:

[0012] One end of resistor R5 is connected to the other end of normally open contact K1. The other end of resistor R5 is connected to test point T3, one end of resistor R7, one end of capacitor C10, and the negative terminal of diode D6. The negative terminal of diode D6 is also connected to the control module. The other end of resistor R7, the other end of capacitor C10, and the positive terminal of diode D6 are all grounded.

[0013] Furthermore, the control module specifically includes:

[0014] Pin 1 of chip U3 is connected to the antenna module. Pins 2 and 3 of chip U3 are both connected to a 3.3V power supply. Pin 4 of chip U3 is connected to the reset circuit. Pins 5 and 8 of chip U3 are both connected to terminal J7, which is the interface for programming. Pin 6 of chip U3 is connected to the sampling circuit. Pins 11 and 12 of chip U3 are both connected to the wireless communication module. Pin 0 of chip U3 is grounded. Pin 15 of chip U3 is connected to one end of resistor R16. The other end of resistor R16 is connected to the base of transistor Q2. The collector of transistor Q2 is connected to the 3.3V power supply. The emitter of chip 2 is connected to one end of resistor R8, and the other end of resistor R8 is grounded through LED D9. Pin 16 of chip U3 is connected to the wireless communication module. Pins 20, 29, 46, 55, and 56 of chip U3 are all connected to a 3.3V power supply. Pins 21 and 22 of chip U3 are both connected to low-frequency crystal oscillator Y2. Pins 25 and 26 of chip U3 are both connected to terminal J7. Pin 49 of chip U3 is connected to terminal J7 through resistor R12. Pin 50 of chip U3 is connected to terminal J7 through resistor R11. Pins 53 and 54 of chip U3 are both connected to crystal oscillator Y1.

[0015] Furthermore, the reset circuit specifically includes:

[0016] The other end of resistor R13 and one end of capacitor C20 are both connected to the control module. One end of resistor R13 is connected to a 3.3V power supply, and the other end of resistor and capacitor C20 is grounded.

[0017] Furthermore, the wireless communication module specifically includes:

[0018] Pins 1 and 2 of chip U4 are connected to the control module. Pins 4, 5, 7, and 8 of chip U4 are connected to the reserved test points. Pin 22 of chip U4 is connected to pin 16 of chip U3. Pins 11, 28, 18, 17, and 23 of chip U4 are grounded. Pin 24 of chip U4 is connected to a 3.3V power supply. Pin 24 of chip U4 is also connected to one end of capacitor C29 and one end of capacitor C30, respectively. The other ends of capacitor C29 and capacitor C30 are grounded.

[0019] Furthermore, the antenna module specifically includes:

[0020] One end of capacitor C25 and one end of inductor L4 are both connected to the control module. The other ends of capacitor C25, capacitor C26, and capacitor C27 are all grounded. The other end of capacitor C25 is also connected to test point T2. The other end of inductor L4 is connected to one end of capacitor C26, one end of inductor L5, and antenna ANT1, respectively. The other end of inductor L5 is connected to one end of capacitor C27.

[0021] Furthermore, the power module specifically includes an AC to 5V module and a 5V to 3.3V module, wherein the AC to 5V module specifically includes:

[0022] One end of fuse F1, which has blown due to overcurrent, is connected to the live wire of the mains power. The other end of fuse F1 is connected to the positive terminal of diode D2. The negative terminal of diode D2 is connected to one end of capacitor C7 and one end of resistor R3. The other end of resistor R3 is connected to pin 4 of chip U2. Pin 2 of chip U2 is connected to one end of resistor R1 and one end of resistor R2. Pin 1 of chip U2 is connected to one end of capacitor C5. Pins 5, 6, 7, and 8 of chip U2 are all connected to the other end of capacitor C5. The other end of capacitor C5 is also connected to the other end of resistor R2, the other end of capacitor C6, one end of inductor L1, and... The negative terminal of diode D3 is connected to the ground. The positive terminal of diode D3 is connected to the other end of capacitor C7 and the positive terminal of diode D4. The negative terminal of diode D4 is connected to the neutral wire of the mains power. The positive terminal of diode D3 is also connected to the other end of capacitor C8, the other end of resistor R4, and the other end of capacitor C9. The other end of capacitor C9 is grounded. The other end of resistor R1 is connected to one end of capacitor C6 and the negative terminal of diode D1. The positive terminal of diode D1 is connected to the other end of inductor L1, one end of capacitor C8, one end of resistor R4, and one end of capacitor C9. The other end of inductor L1 also outputs a 5V power supply.

[0023] Furthermore, the 5V to 3.3V module specifically includes:

[0024] Pin 2 of chip U1 is connected to one end of capacitor C1, one end of capacitor C2 and 5V power supply respectively. Pin 3 of chip U1 is connected to one end of capacitor C3 and one end of capacitor C4 respectively. Pin 3 of chip U1 also outputs 3.3V power supply. The other ends of capacitor C1, capacitor C2, pin 1 of chip U1, capacitor C3 and capacitor C4 are all grounded.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This utility model provides a device power supply control circuit. Compared with the prior art, this circuit includes: a relay module connected to the live wire of the device power supply; a control module connected to the relay module for controlling the relay module to engage; a wireless communication module connected to the control module for sending data to the outside and receiving instructions; and a power supply module connected to the relay module, control module, and wireless communication module respectively to supply power. It can intelligently switch the device on and off, and is not limited by the model of various devices, enabling unified power supply management for multiple different types of devices. Attached Figure Description

[0027] To more clearly illustrate the embodiments of this specification, the accompanying drawings used in the embodiments will be briefly introduced below. The drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 The diagram shown is a structural schematic of the device power supply control circuit provided in the embodiment of this specification;

[0029] Figure 2 The diagram shown is a structural schematic of the relay module provided in the embodiment of this specification;

[0030] Figure 3 The diagram shown is a schematic diagram of the sampling circuit provided in the embodiment of this specification;

[0031] Figure 4 The diagram shown is a structural schematic of the control module provided in an embodiment of this specification.

[0032] Figure 5 The diagram shown is a schematic diagram of the reset circuit provided in the embodiment of this specification;

[0033] Figure 6 The diagram shown is a structural schematic of the wireless communication module provided in an embodiment of this specification.

[0034] Figure 7 The diagram shown is a structural schematic of the AC to 5V converter module provided in the embodiment of this specification.

[0035] Figure 8 The diagram shown is a structural schematic of the 5V to 3.3V module provided in the embodiment of this specification;

[0036] Figure 9 The diagram shown is a structural schematic of the antenna module provided in the embodiment of this specification. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0038] like Figure 1 The diagram shown is a structural schematic of the device power supply control circuit provided in the embodiments of this specification. Although this specification provides the structures shown in the embodiments or figures below, based on conventional methods or without creative effort, the structures may include more or fewer structures after partial combination. These structures are not limited to the structures shown in the embodiments or figures of this specification. When the structures are applied in actual devices or terminal products, they can be executed sequentially or in parallel according to the embodiments or module structures.

[0039] The device power supply control circuit provided in the embodiments of this specification can be applied to the power supply terminals of various devices. This circuit includes:

[0040] The relay module is connected to the live wire that powers the device.

[0041] A control module, connected to the relay module, is used to control the relay module to engage;

[0042] A wireless communication module, connected to the control module, is used to send data to the outside and receive instructions;

[0043] The power supply module is connected to the relay module, control module, and wireless communication module respectively to provide power.

[0044] This application provides a device power supply control circuit, located at the power supply end of the device, typically in a socket. When the control module receives a power-on command from a management platform or host computer, it drives the relay coil to energize, generating a magnetic field that closes the normally open contact K1 of the relay module, thereby connecting the device power circuit and enabling the instrument to operate. Conversely, when a power-off command is received, the coil is de-energized, the magnetic field disappears, and the normally open contact K1 opens, cutting off the device power supply. The relay control module needs to have sufficient driving capability to ensure reliable control of power supplies for different types and power levels of devices. Simultaneously, to protect the relay and other circuit components, overcurrent protection and overvoltage protection circuits are typically designed to prevent damage to the module during device startup or abnormal conditions.

[0045] In the embodiments of this application, such as Figure 2 The above is a structural diagram of a relay module, which specifically includes:

[0046] One end of resistor R6 is connected to the control module, and the other end of resistor R6 is connected to the base of transistor Q1. The collector of transistor Q1 is connected to the anode of diode D5 and the other end of the coil, respectively. The cathode of diode D5 and one end of the coil are both connected to a 5V power supply. One end of normally open contact K1 is connected to the live wire of the power supply, and the other end of normally open contact K1 is connected to the live wire of the device power supply. The emitter of transistor Q1 is grounded through resistor R8.

[0047] In the embodiments of this application, such as Figure 3 The above is a schematic diagram of the sampling circuit. The control circuit further includes a sampling circuit, which specifically includes:

[0048] One end of resistor R5 is connected to the other end of normally open contact K1. The other end of resistor R5 is connected to test point T3, one end of resistor R7, one end of capacitor C10, and the cathode of diode D6. The cathode of diode D6 is also connected to the control module. The other end of resistor R7, the other end of capacitor C10, and the anode of diode D6 are all grounded. Test point T3 and test point T2 (described below) are used for testing the PCB (Printed Circuit Board).

[0049] In the embodiments of this application, such as Figure 4 The above is a structural diagram of the control module, which specifically includes:

[0050] Pin 1 of chip U3 is connected to the antenna module. Pins 2 and 3 of chip U3 are both connected to a 3.3V power supply. Pin 4 of chip U3 is connected to the reset circuit. Pins 5 and 8 of chip U3 are both connected to terminal J7, which is the interface for programming. Pin 6 of chip U3 is connected to the sampling circuit. Pins 11 and 12 of chip U3 are both connected to the wireless communication module. Pin 0 of chip U3 is grounded. Pin 15 of chip U3 is connected to one end of resistor R16. The other end of resistor R16 is connected to the base of transistor Q2. The collector of transistor Q2 is connected to the 3.3V power supply. The emitter of chip 2 is connected to one end of resistor R8, and the other end of resistor R8 is grounded through LED D9. Pin 16 of chip U3 is connected to the wireless communication module. Pins 20, 29, 46, 55, and 56 of chip U3 are all connected to a 3.3V power supply. Pins 21 and 22 of chip U3 are both connected to low-frequency crystal oscillator Y2. Pins 25 and 26 of chip U3 are both connected to terminal J7. Pin 49 of chip U3 is connected to terminal J7 through resistor R12. Pin 50 of chip U3 is connected to terminal J7 through resistor R11. Pins 53 and 54 of chip U3 are both connected to crystal oscillator Y1.

[0051] In the embodiments of this application, such as Figure 5 The above is a schematic diagram of a reset circuit, which specifically includes:

[0052] The other end of resistor R13 and one end of capacitor C20 are both connected to the control module. One end of resistor R13 is connected to a 3.3V power supply, and the other end of resistor and capacitor C20 is grounded.

[0053] In the embodiments of this application, such as Figure 6 The above is a schematic diagram of the wireless communication module, which specifically includes:

[0054] Pins 1 and 2 of chip U4 are connected to the control module. Pins 4, 5, 7, and 8 of chip U4 are connected to the reserved test points. Pin 22 of chip U4 is connected to pin 16 of chip U3. Pins 11, 28, 18, 17, and 23 of chip U4 are grounded. Pin 24 of chip U4 is connected to a 3.3V power supply. Pin 24 of chip U4 is also connected to one end of capacitor C29 and one end of capacitor C30, respectively. The other ends of capacitor C29 and capacitor C30 are grounded.

[0055] Specifically, the wireless communication module in this application is a LoRa communication module. The control circuit of this application achieves remote interaction with the host computer or management platform through the LoRa communication module. The LoRa communication module is based on spread spectrum modulation technology. By spreading the radio frequency signal, it disperses the signal energy over a wider frequency band, thereby improving the signal's anti-interference capability and transmission distance. When transmitting data, the LoRa communication module encodes and modulates the information to be transmitted, and then transmits it wirelessly through the antenna. After receiving the signal, the LoRa communication module at the receiving end (such as the management platform) demodulates and decodes it to restore the original data. The LoRa communication module can dynamically adjust parameters such as transmission power and frequency band according to the actual environment and communication needs to optimize data transmission. For example, it automatically increases the transmission power in areas with weak signals and selects a clearer channel for communication in frequency bands with greater interference, ensuring stable and reliable data transmission to the relay control module.

[0056] The crystal oscillator records the device's operating time, and operating time statistics are achieved by monitoring the state changes of the relay module. When the relay state changes from open to closed (i.e., the device is powered on), the operating time statistics module records the current time as the device's power-on time; when the relay state changes from closed to open (the device is powered off), it calculates the duration of this power-on and adds it to the total operating time. To ensure the accuracy of time statistics, the module typically uses a high-precision clock chip or utilizes the timer resources within the MCU for timing. These timing units can achieve time resolution accurate to the second or even higher, ensuring the reliability of the recorded device operating time data. The operating time statistics can be uploaded to the management platform periodically or upon user request for users to view and analyze.

[0057] In the embodiments of this application, such as Figure 9 The above is a structural diagram of an antenna module, which specifically includes:

[0058] One end of capacitor C25 and one end of inductor L4 are both connected to the control module. The other ends of capacitor C25, capacitor C26, and capacitor C27 are all grounded. The other end of capacitor C25 is also connected to test point T2. The other end of inductor L4 is connected to one end of capacitor C26, one end of inductor L5, and antenna ANT1, respectively. The other end of inductor L5 is connected to one end of capacitor C27.

[0059] In this embodiment of the application, the power module specifically includes a mains power to 5V module and a 5V to 3.3V module, wherein, as shown... Figure 7 The above is a structural diagram of an AC to 5V converter module, which specifically includes:

[0060] One end of fuse F1, which has blown due to overcurrent, is connected to the live wire of the mains power. The other end of fuse F1 is connected to the positive terminal of diode D2. The negative terminal of diode D2 is connected to one end of capacitor C7 and one end of resistor R3. The other end of resistor R3 is connected to pin 4 of chip U2. Pin 2 of chip U2 is connected to one end of resistor R1 and one end of resistor R2. Pin 1 of chip U2 is connected to one end of capacitor C5. Pins 5, 6, 7, and 8 of chip U2 are all connected to the other end of capacitor C5. The other end of capacitor C5 is also connected to the other end of resistor R2, the other end of capacitor C6, one end of inductor L1, and... The negative terminal of diode D3 is connected to the ground. The positive terminal of diode D3 is connected to the other end of capacitor C7 and the positive terminal of diode D4. The negative terminal of diode D4 is connected to the neutral wire of the mains power. The positive terminal of diode D3 is also connected to the other end of capacitor C8, the other end of resistor R4, and the other end of capacitor C9. The other end of capacitor C9 is grounded. The other end of resistor R1 is connected to one end of capacitor C6 and the negative terminal of diode D1. The positive terminal of diode D1 is connected to the other end of inductor L1, one end of capacitor C8, one end of resistor R4, and one end of capacitor C9. The other end of inductor L1 also outputs a 5V power supply.

[0061] In the embodiments of this application, such as Figure 8 The above is a schematic diagram of a 5V to 3.3V module, which specifically includes:

[0062] Pin 2 of chip U1 is connected to one end of capacitor C1, one end of capacitor C2 and 5V power supply respectively. Pin 3 of chip U1 is connected to one end of capacitor C3 and one end of capacitor C4 respectively. Pin 3 of chip U1 also outputs 3.3V power supply. The other ends of capacitor C1, capacitor C2, pin 1 of chip U1, capacitor C3 and capacitor C4 are all grounded.

[0063] It should be understood that when an element is referred to as “fixed to” or “set on” another element, it may be directly on the other element or may be interposed with an intervening element; when an element is referred to as “connected to” another element, it may be directly connected to the other element or may be interposed with an intervening element. Furthermore, the term “connected” as used herein may include wireless connections; the word “and / or” as used includes any and all combinations of one or more of the associated listed items.

[0064] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0065] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0066] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0067] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

[0070] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications or substitutions should be considered within the protection scope of the present invention.

Claims

1. A power supply control circuit for a device, characterized in that, The control circuit comprises: A relay module connected with the live wire of the power supply of the equipment; A control module connected with the relay module for controlling the attraction of the relay module; A wireless communication module connected with the control module for sending data to the outside and receiving instructions; A power module connected with the relay module, the control module and the wireless communication module respectively for power supply.

2. The device power supply control circuit of claim 1, wherein, The relay module specifically comprises: One end of the resistor R6 is connected with the control module, the other end of the resistor R6 is connected with the base of the transistor Q1, the collector of the transistor Q1 is connected with the anode of the diode D5 and the other end of the coil respectively, the cathode of the diode D5 and one end of the coil are connected with the 5V power supply, one end of the normally open contact K1 is connected with the live wire of the power supply, the other end of the normally open contact K1 is connected with the live wire of the power supply of the equipment, and the emitter of the transistor Q1 is grounded through the resistor R8.

3. The device power control circuit of claim 2, wherein, The control circuit further comprises a sampling circuit, which specifically comprises: One end of the resistor R5 is connected with the other end of the normally open contact K1, the other end of the resistor R5 is connected with the test point T3, one end of the resistor R7, one end of the capacitor C10 and the cathode of the diode D6 respectively, the cathode of the diode D6 is also connected with the control module, the other end of the resistor R7, the other end of the capacitor C10 and the anode of the diode D6 are grounded.

4. The device power control circuit of claim 1, wherein, The control module specifically comprises: Pin 1 of the chip U3 is connected with the antenna module, pins 2 and 3 of the chip U3 are connected with the 3.3V power supply, pin 4 of the chip U3 is connected with the reset circuit, pins 5 and 8 of the chip U3 are connected with the terminal post J7, the terminal post J7 is the interface for burning programs, pin 6 of the chip U3 is connected with the sampling circuit, pins 11 and 12 of the chip U3 are connected with the wireless communication module, pin 0 of the chip U3 is grounded, pin 15 of the chip U3 is connected with one end of the resistor R16, the other end of the resistor R16 is connected with the base of the transistor Q2, the collector of the transistor Q2 is connected with the 3.3V power supply, the emitter of the transistor Q2 is connected with one end of the resistor R8, the other end of the resistor R8 is grounded through the light emitting diode D9, pin 16 of the chip U3 is connected with the wireless communication module, pins 20, 29, 46, 55 and 56 of the chip U3 are connected with the 3.3V power supply, pins 21 and 22 of the chip U3 are connected with the low frequency crystal oscillator Y2, pins 25 and 26 of the chip U3 are connected with the terminal post J7, pin 49 of the chip U3 is connected with the terminal post J7 through the resistor R12, pin 50 of the chip U3 is connected with the terminal post J7 through the resistor R11, and pins 53 and 54 of the chip U3 are connected with the crystal oscillator Y1.

5. The device power control circuit of claim 4, wherein, The reset circuit specifically comprises: The other end of the resistor R13 and one end of the capacitor C20 are connected with the control module, one end of the resistor R13 is connected with the 3.3V power supply, and the other end of the resistor and the capacitor C20 is grounded.

6. The device power control circuit of claim 4, wherein, The wireless communication module specifically comprises: The pin 1 and the pin 2 of the chip U4 are connected with the control module, the pin 4, the pin 5, the pin 7 and the pin 8 of the chip U4 are connected with the reserved test point, the pin 22 of the chip U4 is connected with the pin 16 of the chip U3, the pin 11, the pin 28, the pin 18, the pin 17 and the pin 23 of the chip U4 are grounded, the pin 24 of the chip U4 is connected with the 3.3V power supply, and the pin 24 of the chip U4 is also connected with one end of the capacitor C29 and one end of the capacitor C30 respectively, and the other end of the capacitor C29 and the other end of the capacitor C30 are grounded.

7. The device power control circuit of claim 4, wherein, The antenna module specifically comprises: One end of the capacitor C25 and one end of the inductor L4 are connected with the control module, the other end of the capacitor C25, the other end of the capacitor C26 and the other end of the capacitor C27 are grounded, and the other end of the capacitor C25 is also connected with the test point T2, the other end of the inductor L4 is connected with one end of the capacitor C26, one end of the inductor L5 and the antenna ANT1 respectively, and the other end of the inductor L5 is connected with one end of the capacitor C27.

8. The device power control circuit of claim 1, wherein, The power module specifically comprises a commercial power to 5V module and a 5V to 3.3V module, wherein the commercial power to 5V module specifically comprises: One end of the fuse F1 over-current fuse is connected with the live wire of the commercial power, the other end of the fuse F1 is connected with the anode of the diode D2, the cathode of the diode D2 is connected with one end of the capacitor C7 and one end of the resistor R3 respectively, the other end of the resistor R3 is connected with the pin 4 of the chip U2, the pin 2 of the chip U2 is connected with one end of the resistor R1 and one end of the resistor R2 respectively, the pin 1 of the chip U2 is connected with one end of the capacitor C5, the pin 5, the pin 6, the pin 7 and the pin 8 of the chip U2 are connected with the other end of the capacitor C5, the other end of the capacitor C5 is also connected with the other end of the resistor R2, the other end of the capacitor C6, one end of the inductor L1 and the cathode of the diode D3 respectively, the anode of the diode D3 is connected with the other end of the capacitor C7 and the anode of the diode D4 respectively, the cathode of the diode D4 is connected with the zero line of the commercial power, the anode of the diode D3 is also connected with the other end of the capacitor C8, the other end of the resistor R4 and the other end of the capacitor C9 respectively, the other end of the capacitor C9 is also grounded, the other end of the resistor R1 is connected with one end of the capacitor C6 and the cathode of the diode D1 respectively, the anode of the diode D1 is connected with the other end of the inductor L1, one end of the capacitor C8, one end of the resistor R4 and one end of the capacitor C9 respectively, and the other end of the inductor L1 further outputs the 5V power supply.

9. The device power control circuit of claim 7, wherein, The 5V to 3.3V module specifically comprises: The pin 2 of the chip U1 is connected with one end of the capacitor C1, one end of the capacitor C2 and the 5V power supply respectively, the pin 3 of the chip U1 is connected with one end of the capacitor C3 and one end of the capacitor C4 respectively, the pin 3 of the chip U1 further outputs the 3.3V power supply, the other end of the capacitor C1, the other end of the capacitor C2, the pin 1 of the chip U1, the other end of the capacitor C3 and the other end of the capacitor C4 are grounded.

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