Intelligent power-off protection and voltage stabilization system and control method thereof

Abstract

The application discloses an intelligent power-off protection and voltage stabilizing system and a control method thereof, and belongs to the technical field of electronic circuits.The intelligent power-off protection and voltage stabilizing system comprises an automatic detection module, a logic control module, a super capacitor module and a voltage boosting and stabilizing module.The automatic detection module is used for detecting an input voltage and outputting a detection signal; the logic control module is used for controlling the working state of the super capacitor module and the voltage boosting and stabilizing module according to the detection signal; the super capacitor module is used for outputting a standby discharge voltage as a standby power supply when the working state is turned on; and the voltage boosting and stabilizing module is used for performing voltage boosting and stabilizing adjustment processing on the standby discharge voltage when the working state is turned on.The technical scheme can realize real-time monitoring of the input voltage, provide power-off protection in time when an abnormality is monitored, perform voltage boosting and stabilizing processing on the output voltage of the power-off protection, and provide stable voltage output for external circuits, so that the safety of electronic equipment and stored data is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electronic circuits, and particularly relates to an intelligent power-off protection and voltage stabilizing system and a control method thereof. BACKGROUND

[0002] With the rapid development of electronic technology, various electronic devices have increasingly high requirements for the stability and reliability of power supplies. In particular, in complex working environments, such as power fluctuations or transient power failures, it is particularly important to maintain the stable operation of electronic devices and data security.

[0003] At present, independent voltage stabilizers are mainly relied on to maintain voltage stability, and battery backups are used to achieve power-off protection. However, traditional voltage stabilizers cannot quickly adapt to complex power environment changes, and battery backup systems often need to reserve a large amount of space when designing electronic devices, greatly increasing the complexity of electronic devices and thus the production and maintenance costs of electronic devices.

[0004] Therefore, how to simplify the circuit design and realize comprehensive monitoring, intelligent response and efficient management of the power supply environment to provide protection for the safe and stable operation of electronic devices and data security has become a problem that needs to be solved in the field. SUMMARY

[0005] The embodiments of the application provide an intelligent power-off protection and voltage stabilizing system and a control method thereof, which can realize real-time monitoring of input voltage, provide power-off protection in time when an abnormality is monitored, and perform boost and voltage stabilizing processing on the output voltage of the power-off protection to provide stable voltage output for external circuits, thereby protecting the safety of electronic devices and stored data.

[0006] In a first aspect, the embodiments of the application provide an intelligent power-off protection and voltage stabilizing system, which comprises:

[0007] An automatic detection module is configured to detect an input voltage and output a detection signal;

[0008] A logic control module is connected with the automatic detection module and configured to control the working state of a super capacitor module and a boost and voltage stabilizing module according to the detection signal;

[0009] The super capacitor module is connected with the logic control module and configured to output a backup discharge voltage as a backup power supply when the working state is turned on;

[0010] The boost and voltage stabilizing module is connected with the logic control module and the super capacitor module and configured to perform boost and voltage stabilizing adjustment processing on the backup discharge voltage when the working state is turned on.

[0011] In a second aspect, the embodiments of the present application provide a control method of an intelligent power-off protection and voltage stabilization system, which is executed by the intelligent power-off protection and voltage stabilization system. The method comprises:

[0012] The input voltage is detected by an automatic detection module, and a detection signal is outputted;

[0013] The working state of a super capacitor module and a voltage boosting and stabilizing module is controlled by a logic control module according to the detection signal;

[0014] In a case where the working state of the super capacitor module is turned on, the super capacitor module serves as a backup power supply and outputs a backup discharge voltage;

[0015] In a case where the working state of the voltage boosting and stabilizing module is turned on, the backup discharge voltage is subjected to voltage boosting and stabilizing adjustment processing.

[0016] In a third aspect, the embodiments of the present application provide an electronic device, which comprises a processor, a memory, and a program or instructions stored in the memory and executable on the processor, and the program or instructions are executed by the processor to implement the steps of the method according to the second aspect.

[0017] In a fourth aspect, the embodiments of the present application provide a readable storage medium, which stores a program or instructions, and the program or instructions are executed by a processor to implement the steps of the method according to the second aspect.

[0018] In a fifth aspect, the embodiments of the present application provide a chip, which comprises a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or instructions to implement the method according to the second aspect.

[0019] In the embodiments of the present application, an automatic detection module is used to detect an input voltage and output a detection signal; a logic control module is connected with the automatic detection module and is used to control the working state of a super capacitor module and a voltage boosting and stabilizing module according to the detection signal; the super capacitor module is connected with the logic control module and is used to serve as a backup power supply and output a backup discharge voltage in a case where the working state is turned on; and the voltage boosting and stabilizing module is connected with the logic control module and the super capacitor module and is used to perform voltage boosting and stabilizing adjustment processing on the backup discharge voltage in a case where the working state is turned on. The technical solution can realize real-time monitoring of the input voltage, provide power-off protection in time when an abnormality is monitored, perform voltage boosting and stabilizing processing on the output voltage of the power-off protection, and provide stable voltage output for external circuits, thereby guaranteeing the safety of electronic devices and stored data. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the intelligent power-off protection and voltage stabilizing system provided in Embodiment One of the present application;

[0021] Figure 2 is a structural schematic diagram of the voltage boosting and stabilizing module provided in Embodiment Two of the present application;

[0022] Figure 3 is an example structural diagram of the voltage boosting and stabilizing module provided in Embodiment Two of the present application;

[0023] Figure 4 is a structural schematic diagram of the voltage boosting and stabilizing module provided in Embodiment Three of the present application;

[0024] Figure 5 is an example structural diagram of the voltage boosting and stabilizing module provided in Embodiment Three of the present application;

[0025] Figure 6 is a structural schematic diagram of the voltage boosting and stabilizing module provided in Embodiment Four of the present application;

[0026] Figure 7 is a structural schematic diagram of the voltage boosting and stabilizing module provided in Embodiment Four of the present application;

[0027] Figure 8 is an example structural diagram of the voltage boosting and stabilizing module provided in Embodiment Four of the present application;

[0028] Figure 9 is a structural schematic diagram of the voltage boosting and stabilizing module provided in Embodiment Five of the present application;

[0029] Figure 10 is an example structural diagram of the voltage boosting and stabilizing module provided in Embodiment Five of the present application;

[0030] Figure 11 is an example structural diagram of the intelligent power-off protection and voltage stabilizing system provided in Embodiment Five of the present application;

[0031] Figure 12 is a flowchart of the control method of the intelligent power-off protection and voltage stabilizing system provided in Embodiment Six of the present application;

[0032] Figure 13 is a structural schematic diagram of the electronic device provided in Embodiment Seven of the present application. DETAILED DESCRIPTION

[0033] In order to make the purposes, technical solutions and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only parts related to the present application are shown in the drawings, but not all. Before discussing the example embodiments in more detail, it should be mentioned that some example embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently or simultaneously. In addition, the order of the operations can be rearranged. The processes can be terminated when the operations are completed, but can also have additional steps not included in the drawings. The processes can correspond to methods, functions, procedures, subroutines, etc.

[0034] The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0035] The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" and the like are generally a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the objects before and after are in a "or" relationship.

[0036] The intelligent power-off protection and voltage stabilizing system and the control method thereof provided by the embodiments of the present application will be described in detail below with reference to the drawings, specific embodiments and application scenarios.

[0037] Embodiment one

[0038] Figure 1 is a structural schematic diagram of the intelligent power-off protection and voltage stabilizing system provided by the first embodiment of the present application. As shown in Figure 1 The intelligent power-off protection and voltage stabilizing system comprises:

[0039] The automatic detection module 110 is configured to detect the input voltage and output a detection signal.

[0040] The logic control module 120 is connected with the automatic detection module, and is used for controlling the working state of the super capacitor module and the boost voltage stabilizing module according to the detection signal.

[0041] The super capacitor module 130 is connected with the logic control module, and is used for outputting a standby discharge voltage as a standby power supply when the working state is turned on.

[0042] The boost voltage stabilizing module 140 is connected with the logic control module and the super capacitor module, and is used for performing boost voltage stabilizing adjustment processing on the standby discharge voltage when the working state is turned on.

[0043] The present application is applicable to the scene of providing a power supply voltage for an electronic device. Based on the above use scene, it can be understood that the execution subject of the present application can be an intelligent power failure protection and voltage stabilizing system itself. Specifically, the detection of the input voltage and the output and boost voltage stabilizing adjustment processing of the standby discharge voltage can be performed by the intelligent power failure protection and voltage stabilizing system, and the intelligent power failure protection and voltage stabilizing system can provide power supply for the electronic device when the power supply voltage is abnormal, so as to maintain the stable operation of the electronic device.

[0044] The automatic detection module 110 is used for detecting the input voltage and outputting a detection signal.

[0045] The input voltage can be the voltage size input by an external circuit to the intelligent power failure protection and voltage stabilizing system, and is equal to the power supply voltage of the electronic device. The detection signal can be a signal that can be received and analyzed by the logic control module, and indicates whether the input voltage is abnormal. The abnormal input voltage means that the input voltage causes the electronic device to not work normally or completely lose power supply.

[0046] The detection signal can include a high-level signal and a low-level signal. The output detection signal can be obtained by comparing the input voltage with a reference voltage, and outputting a high-level signal when the input voltage is greater than or equal to the reference voltage, and outputting a low-level signal when the input voltage is less than the reference voltage. It can be understood that when the output detection signal is a low-level signal, it indicates that the input voltage is abnormal.

[0047] The logic control module 120 is connected with the automatic detection module, and is used for controlling the working state of the super capacitor module and the boost voltage stabilizing module according to the detection signal.

[0048] The working state of the super capacitor module can be whether the super capacitor module outputs a standby discharge voltage as a standby power supply. When the working state of the super capacitor module is turned on, the super capacitor module outputs a standby discharge voltage as a standby power supply; when the working state of the super capacitor module is turned off, the super capacitor module can perform a charging process.

[0049] The working state of the voltage boosting and stabilizing module can refer to whether the voltage boosting and stabilizing module performs voltage boosting and stabilizing adjustment processing on the backup discharge voltage. When the working state of the voltage boosting and stabilizing module is turned on, the voltage boosting and stabilizing module performs voltage boosting and stabilizing adjustment processing on the backup discharge voltage; when the working state of the voltage boosting and stabilizing module is turned off, the voltage boosting and stabilizing module does not perform voltage boosting and stabilizing adjustment processing on the backup discharge voltage.

[0050] It can be understood that the working state of the super capacitor module is consistent with that of the voltage boosting and stabilizing module. When the working state of the super capacitor module is turned on, the working state of the voltage boosting and stabilizing module is also turned on; when the working state of the super capacitor module is turned off, the working state of the voltage boosting and stabilizing module is also turned off.

[0051] The working state of the super capacitor module and the voltage boosting and stabilizing module can be represented by the communication state of the super capacitor module, the voltage boosting and stabilizing module and the external circuit. When the super capacitor module, the voltage boosting and stabilizing module and the external circuit are in communication, it indicates that the working state of the super capacitor module and the voltage boosting and stabilizing module is turned on.

[0052] The super capacitor module 130 is connected with the logic control module, and is used to output a backup discharge voltage as a backup power supply when the working state is turned on.

[0053] The backup power supply can continue to provide power supply for the electronic device when the input voltage is abnormal. The backup discharge voltage can refer to the voltage size when the super capacitor module provides power supply for the electronic device as a backup power supply, that is, the voltage size when the super capacitor module outputs the stored electrical energy to the external circuit.

[0054] The output backup discharge voltage is the process in which the super capacitor module outputs the stored electrical energy to the external circuit. Among them, the super capacitor module first outputs the backup discharge voltage to the voltage boosting and stabilizing module, and then outputs to the external circuit after the voltage boosting and stabilizing adjustment processing by the voltage boosting and stabilizing module.

[0055] The voltage boosting and stabilizing module 140 is connected with the logic control module and the super capacitor module, and is used to perform voltage boosting and stabilizing adjustment processing on the backup discharge voltage when the working state is turned on.

[0056] The voltage boosting and stabilizing adjustment processing on the backup discharge voltage can refer to adjusting the backup discharge voltage to a high-precision and high-stability state for output.

[0057] The voltage boosting and stabilizing module outputs the output voltage obtained after the voltage boosting and stabilizing adjustment processing on the backup discharge voltage to the external circuit.

[0058] In the embodiment of the present application, an automatic detection module is configured to detect an input voltage and output a detection signal; a logic control module is connected to the automatic detection module and configured to control a working state of a super capacitor module and a boost voltage stabilizing module according to the detection signal; the super capacitor module is connected to the logic control module and configured to output a standby discharge voltage as a standby power supply when the working state is turned on; the boost voltage stabilizing module is connected to the logic control module and the super capacitor module and configured to perform boost voltage stabilizing adjustment processing on the standby discharge voltage when the working state is turned on. The intelligent power-off protection and voltage stabilizing system can realize real-time monitoring of the input voltage, provide power-off protection in time when an abnormality is monitored, perform boost voltage stabilizing processing on the output voltage of the power-off protection, and provide stable voltage output for external circuits, thereby ensuring the safety of electronic devices and stored data.

[0059] Embodiment Two

[0060] Figure 2 FIG. 1 is a structural schematic diagram of an automatic detection module provided in Embodiment Two of the present application. The present scheme is an improved scheme based on the above-mentioned embodiment, and the specific improvement is that: the automatic detection module comprises: a comparator configured to input an input voltage and a reference voltage at input ends respectively and output a detection signal according to a comparison result; wherein the detection signal comprises a high-level signal and a low-level signal; a feedback resistor connected to an output end of the comparator and configured to feed back the detection signal to the input end of the comparator; and a pull-up resistor connected to the output end of the comparator and configured to receive the reference voltage and keep the detection signal as the high-level signal in a case where there is no input voltage at the input end of the comparator.

[0061] As shown in FIG. 1, the automatic detection module comprises: Figure 2 a comparator configured to input an input voltage and a reference voltage at input ends respectively and output a detection signal according to a comparison result; wherein the detection signal comprises a high-level signal and a low-level signal;

[0062] a feedback resistor connected to an output end of the comparator and configured to feed back the detection signal to the input end of the comparator;

[0063] a pull-up resistor connected to the output end of the comparator and configured to receive the reference voltage and keep the detection signal as the high-level signal in a case where there is no input voltage at the input end of the comparator.

[0064]

[0065] ​The reference voltage is a stable, known voltage. The reference voltage connected to the input terminal of the comparator is used as a criterion for determining whether the input voltage is abnormal; specifically, when the input voltage is less than the reference voltage, the input voltage at this time causes the electronic device to not work properly or completely lose power supply.

[0066] The high-level signal and the low-level signal are two different signal voltage levels used to represent the logic state in the digital circuit. The high-level signal generally represents the logic "1" or "true" state, that is, in the present scheme, it represents that the input voltage is not abnormal, and the voltage range of the high-level signal is generally close to the power supply voltage, that is, the input voltage; the low-level signal generally represents the logic "0" or "false" state, that is, in the present scheme, it represents that the input voltage is abnormal, and the voltage range of the low-level signal is generally close to 0V (volt).

[0067] The comparator is an electronic element specially used for comparing two voltage signals and generating a corresponding output signal. The input voltage is connected to the non-inverting terminal of the input terminal of the comparator, and the reference voltage is connected to the inverting terminal of the input terminal of the comparator. The comparator compares the input voltage with the reference voltage, and outputs a high-level signal if the input voltage is greater than or equal to the reference voltage, and outputs a low-level signal if the input voltage is less than the reference voltage.

[0068] One end of the feedback resistor is connected to the output terminal of the comparator, and the other end is connected to the non-inverting terminal of the input terminal of the comparator. The feedback resistor is a resistor used to feed back a part of the detection signal to the input terminal of the comparator, thereby improving the stability of the comparator and reducing the influence of noise on the output detection signal.

[0069] The pull-up resistor is a resistor used to pull the input pin or signal line to a high level, which can ensure that the input pin remains in a known high level state when the signal line is not activated, that is, in the present scheme, when there is no input voltage at the input terminal of the comparator, the detection signal is kept as a high-level signal, thereby avoiding the detection signal output to the logic control module being in an uncertain state, and improving the stability of the intelligent power-off protection and voltage stabilization system.

[0070] In the present scheme, optionally, a voltage dividing network can also be provided at the input terminal of the comparator, which is used to divide the input voltage and the reference voltage, adjust the voltage size input to the input terminal of the comparator, and achieve the purpose of current limiting.

[0071] Figure 3 is a structural example diagram of the automatic detection module provided by Embodiment Two of the present application. As shown in Figure 3As shown in the figure, 5.6V is an input voltage, 3.3V_VDD is a reference voltage, U1A is a comparator, R1 is a feedback resistor, R3 is a pull-up resistor, PD_DETC is a detection signal, the non-inverting terminal (pin 2) of the input terminal of U1A is connected to 5.6V, and the inverting terminal (pin 3) of the input terminal of the comparator is connected to 3.3V_VDD; pin A of U1A is connected to 5V_SYS, and pin G of U1A is grounded, wherein 5V_SYS is a power voltage for supplying power to U1A; R2, R4, R5 and R6 are resistors, which constitute a voltage dividing network to adjust the voltage of the input terminal of U1A, and at the same time play a current limiting role in the circuit.

[0072] The advantage of the present scheme is that the real-time detection of the input voltage state can be realized by comparing the input voltage with the reference voltage through the comparator, the stability of the detection signal can be improved through the feedback resistor, and the running stability of the automatic detection module can be improved through the pull-up resistor.

[0073] Embodiment Three

[0074] Figure 4 The figure is a structural schematic diagram of the logic control module provided by Embodiment Three of the present application. The present scheme is an improved scheme based on the above-mentioned embodiments, and the specific improvement is that the logic control module comprises: a microcontroller, configured to receive the detection signal and output a control instruction according to the detection signal; an NPN triode, comprising a base, an emitter and a collector, wherein the base is connected to the output end of the microcontroller, and the emitter is connected to a ground electrode, and configured to switch a first PMOS tube to a connected state when the base receives the control instruction; and the first PMOS tube, comprising a gate, a source and a drain, wherein the gate is connected to the collector of the NPN triode, the source is connected to the supercapacitor module, and the drain is connected to the voltage boosting and stabilizing module, and configured to switch the working states of the supercapacitor module and the voltage boosting and stabilizing module to an open state in the connected state.

[0075] As shown in the figure, the logic control module comprises: Figure 4

[0076] a microcontroller, configured to receive the detection signal and output a control instruction according to the detection signal;

[0077] an NPN triode, comprising a base, an emitter and a collector, wherein the base is connected to the output end of the microcontroller, and the emitter is connected to a ground electrode, and configured to switch a first PMOS tube to a connected state when the base receives the control instruction;

[0078] ​The first PMOS tube includes a gate, a source and a drain, the gate is connected with the collector of the NPN triode, the source is connected with the super capacitor module, and the drain is connected with the voltage boosting and stabilizing module, and is used for switching the working state of the super capacitor module and the voltage boosting and stabilizing module to be opened in the connected state.

[0079] The microcontroller is an integrated circuit, which can include a processor core, a memory, an input / output interface and other peripherals. The control instruction can be an instruction output by the microcontroller for controlling the working state of the super capacitor module and the voltage boosting and stabilizing module, and can be a high-level signal. When the detection signal received by the microcontroller is a low-level signal, the microcontroller outputs a high-level signal as the control instruction.

[0080] The NPN triode is a bipolar transistor, which is composed of three layers of semiconductor materials, namely a base, an emitter and a collector. The base is used for controlling the current between the emitter and the collector, the emitter is used for injecting electrons into the base, and the collector collects the electrons injected from the emitter. The emitter is connected with the ground, that is, the emitter is grounded, so that when the microcontroller does not output the control instruction, the emitter is at a low potential relative to the base, and there is no forward bias between the emitter and the base, and the collector current is close to 0, that is, the NPN triode is in the off state. When the microcontroller outputs the control instruction, the base of the NPN triode receives a high-level signal, the electrons in the emitter are injected into the base, and a part of the electrons re-enter the collector, the voltage drop between the emitter and the collector gradually decreases, and the collector current is maximized, that is, the NPN triode is in the connected state.

[0081] The PMOS tube is a field effect transistor, which includes a gate, a source and a drain. The gate of the first PMOS tube is connected with the collector of the NPN triode, when the NPN triode is in the connected state (that is, the emitter and the collector are connected), since the emitter of the NPN triode is connected with the ground, the gate of the first PMOS tube is equivalent to being connected with the ground, so that the potential of the gate of the first PMOS tube is lower than that of the source, and a P-N junction is formed between the source and the drain, and the current flows from the source to the drain. Since the source of the first PMOS tube is connected with the super capacitor module, and the drain is connected with the voltage boosting and stabilizing module, when the current can flow from the source to the drain, it indicates that the current can flow from the super capacitor module to the voltage boosting and stabilizing module, and at this time, the working state of the super capacitor module and the voltage boosting and stabilizing module is opened.

[0082] Figure 5 is a structural example diagram of the logic control module provided in Embodiment Three of the present application. As shown in Figure 5As shown, MCU is a microprocessor, PD_DETC is a detection signal, GPIO_A pin is used to receive the detection signal, and GPIO_B pin is used to output a control instruction; Q1 is an NPN triode, B is a base, E is an emitter, C is a collector, and GND is a ground; Q3 is a first PMOS tube, G is a gate, S is a source, and D is a drain. Optionally, as shown in Figure 5 As shown, R7, R8, R9, C1, C2, and C3 are set; R7, R8, and R9 are resistors for limiting current size, protecting elements in the circuit from being damaged by excessive current, and also for voltage division and biasing; C1, C2, and C3 are capacitors for filtering, decoupling, energy storage, etc., to stabilize voltage and reduce noise interference.

[0083] The advantage of this scheme is that the microprocessor can be used to comprehensively coordinate the modules, realize intelligent management and control, and the NPN triode and the first PMOS tube can be used to directly connect the super capacitor module and the boost voltage stabilizing module when the microcontroller outputs a control instruction, thereby simplifying the circuit design.

[0084] Embodiment Four

[0085] Figure 6 This is a structural schematic diagram of the logical control module provided by Embodiment Four of the present application. The present scheme is an improved version of the above-mentioned embodiments, and the specific improvement is that the super capacitor module comprises: a super capacitor comprising a positive electrode and a negative electrode, used to output a backup discharge voltage; a second PMOS tube comprising a gate, a source, and a drain, the gate being connected with the emitter of the NPN triode, the source being connected with the positive electrode of the super capacitor, and the drain being connected with the source of the first PMOS tube, used to transmit the backup discharge voltage to the boost voltage stabilizing module in a connected state; and a voltage stabilizing component connected in parallel with the super capacitor, used to keep the backup discharge voltage stable. Correspondingly, the NPN triode is also used to switch the second PMOS tube to a connected state when the base receives the control instruction.

[0086] As shown in Figure 6 The super capacitor module comprises:

[0087] a super capacitor comprising a positive electrode and a negative electrode, used to output a backup discharge voltage;

[0088] a second PMOS tube comprising a gate, a source, and a drain, the gate being connected with the emitter of the NPN triode, the source being connected with the positive electrode of the super capacitor, and the drain being connected with the source of the first PMOS tube, used to transmit the backup discharge voltage to the boost voltage stabilizing module in a connected state;

[0089] A voltage stabilizing component is connected in parallel with the super capacitor, for stabilizing the standby discharge voltage.

[0090] The super capacitor is also called an electrochemical capacitor, and is an energy storage device with high energy density and high power density. When the working state of the super capacitor module is turned on, the super capacitor can be connected with an external circuit, so as to release the stored energy of the super capacitor and provide power supply for the load of the external circuit.

[0091] The gate of the second PMOS tube is connected with the emitter of the NPN triode. When the NPN triode is in a connected state (i.e. the emitter and the collector are connected), since the emitter of the NPN triode is connected with the ground, the gate of the second PMOS tube is equivalent to being connected with the ground, so that the potential of the gate of the second PMOS tube is lower than that of the source, and a P-N junction is formed between the source and the drain. When the current can flow from the source to the drain of the second PMOS tube (at this time, the first PMOS tube is also in a connected state), it indicates that the current can be output from the positive electrode of the super capacitor, pass through the second PMOS tube and the first PMOS tube, and finally input to the voltage boosting and stabilizing module.

[0092] The voltage stabilizing component can include a resistor and a voltage stabilizing tube. The voltage stabilizing component as a whole is connected in parallel with the super capacitor, can stabilize the voltage in the circuit, and prevent the voltage fluctuation from causing damage to the circuit.

[0093] Optionally, one super capacitor, one PMOS tube and one voltage stabilizing component constitute one discharge unit. The super capacitor module can include at least one discharge unit. The number of discharge units can be set according to the input voltage and the discharge voltage of the super capacitor. The discharge units are connected in series.

[0094] In the technical solution, the super capacitor is also used for storing energy.

[0095] Correspondingly, the super capacitor module further includes:

[0096] The third PMOS tube includes a gate, a source and a drain. The gate is connected with the output end of the controlled end of the optoelectronic coupler and the ground. The source receives the input voltage. The drain is connected with the input end of the current flow direction control component, for transmitting the input voltage to the positive electrode of the super capacitor in a connected state.

[0097] The current flow direction control component includes at least two diodes, for preventing the current from flowing to the third PMOS tube when the super capacitor outputs the standby discharge voltage. The output end of the current flow direction control component is connected with the positive electrode of the super capacitor.

[0098] The photoelectric coupler comprises a master control end and a controlled end, the input end of the master control end is connected with the positive pole of the super capacitor, the output end of the master control end is connected with the ground pole, and the input end of the controlled end receives an input voltage, and is used for switching the third PMOS tube to an off state when the energy state of the super capacitor is sufficient.

[0099] Figure 7 is a structural schematic diagram of the logic control module provided in Embodiment Four of the present application. As shown in the figure, the super capacitor module comprises: Figure 7

[0100] The super capacitor comprises a positive pole and a negative pole, and is used for outputting a standby discharge voltage or storing energy;

[0101] The second PMOS tube comprises a gate, a source and a drain, the gate is connected with the emitter of the NPN triode, the source is connected with the positive pole of the super capacitor, and the drain is connected with the source of the first PMOS tube, and is used for transmitting the standby discharge voltage to the boost voltage stabilizing module in a connected state;

[0102] The voltage stabilizing component is connected with the super capacitor in parallel, and is used for keeping the standby discharge voltage stable;

[0103] The third PMOS tube comprises a gate, a source and a drain, the gate is connected with the output end of the controlled end of the photoelectric coupler and the ground pole, the source receives an input voltage, and the drain is connected with the input end of the current flow direction control component, and is used for transmitting the input voltage to the positive pole of the super capacitor in a connected state;

[0104] The current flow direction control component comprises at least two diodes, and is used for preventing the current from flowing to the third PMOS tube when the super capacitor outputs the standby discharge voltage; wherein the output end of the current flow direction control component is connected with the positive pole of the super capacitor;

[0105] The photoelectric coupler comprises a master control end and a controlled end, the input end of the master control end is connected with the positive pole of the super capacitor, the output end of the master control end is connected with the ground pole, and the input end of the controlled end receives an input voltage, and is used for switching the third PMOS tube to an off state when the energy state of the super capacitor is sufficient.

[0106] ​The gate of the third PMOS tube is connected with the output end of the controlled end of the photoelectric coupler and the ground electrode, when the controlled end of the photoelectric coupler is not connected, the gate of the third PMOS tube is equivalent to the ground, so that the potential of the gate of the third PMOS tube is lower than that of the source, and a P-N junction is formed between the source and the drain, and the current flows from the source to the drain. Since the source of the third PMOS tube receives the input voltage, the drain is connected with the input end of the current flow control component, and the output end of the current flow control component is connected with the positive electrode of the super capacitor, when the current can flow from the source to the drain of the third PMOS tube (at this time, the first PMOS tube and the second PMOS tube are in the off state), it indicates that the input voltage can transmit the current to the positive electrode of the super capacitor, so that the electrical energy stored in the super capacitor increases.

[0107] The photoelectric coupler is an electronic element for converting an optical signal into an electrical signal or converting an electrical signal into an optical signal. The basic principle of the photoelectric coupler is to use the sensitivity of the photosensitive element to light. After the light source emits the optical signal, the light irradiates on the photosensitive element, the photosensitive element produces photoelectric effect and generates current or voltage signal. The master control end of the photoelectric coupler is used to generate the optical signal, and the controlled end of the photoelectric coupler is used to receive the optical signal and convert it into an electrical signal. As the electrical energy stored in the super capacitor continues to increase, the positive electrode potential of the super capacitor continues to rise, causing the current transmitted by the input voltage to gradually flow to the master control end of the photoelectric coupler. The current flowing from the input end to the output end of the master control end of the photoelectric coupler causes the master control end to generate an optical signal. The controlled end of the photoelectric coupler receives the optical signal and converts it into an electrical signal. Since the input end of the controlled end receives the input voltage, the current flows from the input end to the output end of the controlled end. Since the gate of the third PMOS tube is connected with the output end of the controlled end of the photoelectric coupler, the current flows to the gate of the third PMOS tube, causing the potential of the gate of the third PMOS tube to rise, and further causing the current between the source and the drain of the third PMOS tube to be interrupted, so that the current cannot flow to the positive electrode of the super capacitor.

[0108] The current flow control component includes at least two diodes connected in parallel, which can be flexibly selected according to the design requirements of the circuit. The diode has a one-way conduction characteristic, the input end of the current flow control component (i.e. the input end of the diode) is connected with the drain of the third PMOS tube, and the output end of the current flow control component (i.e. the output end of the diode) is connected with the positive electrode of the super capacitor, which can prevent the current formed by the standby discharge voltage from flowing to the third PMOS tube when the working state of the super capacitor module is on (i.e. the super capacitor outputs the standby discharge voltage).

[0109] In the technical solution, the super capacitor module further includes:

[0110] The first resistor is connected in series with the source of the third PMOS tube, used for controlling the current size through the third PMOS tube, and providing a bias voltage for the PNP triode.

[0111] The PNP triode includes a base, an emitter and a collector. The base is connected with the source of the third PMOS tube, the emitter receives an input voltage, and the collector is connected with the second resistor, used for making the current shunt to the second resistor in the connected state.

[0112] The second resistor is connected in series with the gate of the third PMOS tube and the ground, used for releasing the overcurrent and overvoltage energy.

[0113] The PNP triode is a bipolar transistor, including a base, an emitter and a collector. The first resistor is connected in series with the input voltage and the source of the third PMOS tube, the base of the PNP triode is connected with the source of the third PMOS tube, and the emitter of the PNP triode receives the input voltage. It is shown that the first resistor is connected in parallel with the PNP triode, and the PNP triode can be provided with a bias voltage. The bias voltage refers to that the emitter potential of the PNP triode is higher than the base potential.

[0114] The first resistor can limit the current flowing from the input voltage to the third PMOS tube, i.e. limit the current through the third PMOS tube, i.e. the current transmitted to the positive electrode of the super capacitor. By changing the size of the first resistor, the charging speed can be adjusted.

[0115] When the voltage of the first resistor is too large, the emitter and the collector of the PNP triode are connected, and part of the current flows from the emitter to the collector of the PNP triode. Since the emitter of the PNP triode is connected with the gate of the third PMOS tube, and the second resistor is connected in series with the gate of the third PMOS tube and the ground, the current can flow from the emitter of the PNP triode to the ground through the second resistor. The current generates heat when flowing through the second resistor, so as to release the overcurrent and overvoltage energy.

[0116] The advantage of the present scheme is that by setting the first resistor, the PNP triode and the second resistor, the charging speed of the super capacitor can be adjusted, and the overcurrent and overvoltage of the circuit can be prevented.

[0117] The advantage of the present scheme is that by setting the optoelectronic coupler and the third PMOS tube, the automatic start and interruption of the super capacitor charging mode can be realized, and by setting the current flow control component, the running stability of the super capacitor module can be improved.

[0118] Figure 8 is a structural example of the super capacitor module provided in Embodiment Four of the present application. As shown in Figure 8As shown, C10 and C12 are super capacitors, Q5 and Q6 are second PMOS tubes, U4 and U5 are voltage stabilizing tubes, R15, R18, R23, R25, R26 and R27 are resistors, U4, R15, R18 and R23 constitute a voltage stabilizing component, U5, R25, R26 and R27 constitute a voltage stabilizing component, C10, Q5, U4, R15, R18 and R23 constitute a discharging unit, C12, Q6, U5, R25, R26 and R27 constitute a discharging unit; U3 is an optoelectronic coupler, Q2 is a third PMOS tube, D1 and D3 are diodes, D1 and D3 constitute a current flow direction control component; R10 is a first resistor, R20 is a second resistor, Q4 is a PNP triode, B is a base, E is an emitter, and C is a collector. Optionally, as shown in Figure 8 As shown, R17 and R19 are provided, which are resistors for current limiting; D4 is provided, which is a voltage stabilizing diode for providing a reference voltage for U3 and stabilizing the voltage in the circuit to prevent voltage fluctuations from damaging the circuit; and C9 is provided, which is a capacitor for realizing RC filtering together with R20.

[0119] The advantage of this arrangement is that the super capacitor can continue to provide power supply for the electronic device when the input voltage is abnormal, preventing data loss, hardware damage or system crash in the electronic device.

[0120] Embodiment Five

[0121] Figure 9 is a structural schematic diagram of the logic control module provided by Embodiment Five of the present application. This embodiment is an improved version of the above-mentioned embodiments, and the specific improvement is that the voltage boosting and stabilizing module comprises: an internal integrated switching element, configured to control a voltage boosting and converting component according to a backup discharging voltage and / or a feedback signal of a voltage stabilizing feedback component, to obtain an output voltage; the voltage boosting and converting component comprises an inductor and a diode, configured to raise or convert the input voltage under the control of the internal integrated switching element; the inductor is configured to store or release energy; the diode is configured to provide a freewheeling path for the inductor when the internal integrated switching element is off; the voltage stabilizing feedback component is configured to feed back the output voltage to obtain the feedback signal; and a control protection component is configured to start or stop the voltage boosting and stabilizing module and test the voltage boosting and stabilizing module.

[0122] As shown in Figure 9 The voltage boosting and stabilizing module comprises:

[0123] an internal integrated switching element, configured to control a voltage boosting and converting component according to a backup discharging voltage and / or a feedback signal of a voltage stabilizing feedback component, to obtain an output voltage;

[0124] The boost conversion component comprises an inductor and a diode, and is used for boosting or converting an input voltage under the control of the internal integrated switching element; the inductor is used for storing or releasing energy; and the diode is used for providing a freewheeling path for the inductor when the internal integrated switching element is turned off.

[0125] The voltage stabilizing feedback component is used for feeding back the output voltage to obtain a feedback signal.

[0126] The control protection component is used for starting or stopping the boost voltage stabilizing module and testing the boost voltage stabilizing module.

[0127] The internal integrated switching element can be an integrated circuit with a switching function, and the turning on and turning off of the internal integrated switching element can control the working state of the boost conversion component to obtain the output voltage. The internal integrated switching element can adjust the switching frequency or duty cycle according to the standby discharge voltage and / or the feedback signal of the voltage stabilizing feedback component. The output voltage can be a voltage in a state of high precision and high stability.

[0128] The boost conversion component comprises an inductor and a diode. The inductor is a passive element used for storing electric energy and impedance variation. When the internal integrated switching element is turned on, current is input to the inductor, and the inductor stores energy; when the internal integrated switching element is turned off, the energy in the inductor is released to the output end of the boost voltage stabilizing module through the diode as the output voltage.

[0129] The voltage stabilizing feedback component can comprise a voltage reference point, a voltage dividing device and a capacitor. The voltage reference point is used for comparing with the output voltage, the voltage dividing device is used for dividing the output voltage to obtain the feedback signal, and the capacitor is used for filtering and stabilizing the feedback signal together with an amplifier, a switch selector and a ground end in the internal integrated switching element. The feedback signal is essentially part of the output voltage.

[0130] The control protection component can comprise a test point and a ground point. The test point is a test interface of the boost voltage stabilizing module, and the ground point is a common reference point of the boost voltage stabilizing module. An enable pin in the internal integrated switching element can be used for starting or stopping the boost voltage stabilizing module. When an abnormality is tested through the control protection component, the boost voltage stabilizing module can be stopped through the enable pin in the internal integrated switching element.

[0131] In the technical solution, the internal integrated switching element comprises a comparator, a switch selector and a ground end.

[0132] The voltage stabilizing feedback component comprises:

[0133] The voltage reference point is used for comparing with the output voltage.

[0134] a voltage dividing device for dividing the output voltage to obtain a feedback signal;

[0135] a capacitor for filtering and stabilizing the feedback signal together with the comparator, the switch selector and the ground terminal.

[0136] The voltage reference point is a point in an electronic circuit for providing a stable voltage reference, which is used in the present scheme to compare with the output voltage for adjusting the output voltage.

[0137] The voltage dividing device can include a resistor and a capacitor, which constitute a voltage dividing network to divide the output voltage and obtain a part of the output voltage as the feedback signal.

[0138] The capacitor in the voltage stabilizing feedback assembly is connected with the comparator, which is used to filter and stabilize the feedback signal. The ground terminal is a part in the internal integrated switch element for providing a ground connection, and the comparator is also used to filter and stabilize the feedback signal. The switch selector is an element for selecting different signal sources or paths, which is used in the present scheme to control the internal integrated switch element to open and close according to the switching frequency or duty cycle.

[0139] The advantage of the present scheme is that the negative feedback mechanism of the output voltage can be realized through the voltage reference point, the voltage dividing device, the capacitor, and the comparator, the switch selector and the ground terminal included in the internal integrated switch element, so as to realize real-time monitoring and adjustment of the output voltage.

[0140] In the present technical scheme, the internal integrated switch element can further include an enable pin, wherein the enable pin is used to start or stop the voltage boosting and stabilizing module.

[0141] The control protection assembly includes:

[0142] The test point is a test interface of the voltage boosting and stabilizing module.

[0143] The ground terminal is a common reference point of the voltage boosting and stabilizing module.

[0144] The enable pin is a control pin in an electronic device or an integrated circuit, which is used to start or disable the function of the device. The enable pin in the present scheme can realize the start or stop of the voltage boosting and stabilizing module.

[0145] The test point is a specific position in a circuit for measurement and debugging, which is a test interface of the voltage boosting and stabilizing module to facilitate the electrical measurement of the staff without interfering with the normal work of the circuit.

[0146] The ground terminal is a point connected with the ground in a circuit, which is used to provide a common reference potential in the voltage boosting and stabilizing module.

[0147] The advantage of this solution is that by setting the enable pin, test point, and ground point, the performance of the boost regulator module can be monitored, and the boost regulator module can be shut down in time when an abnormality is detected, thereby improving the safety of the circuit.

[0148] Figure 10 This is a structural example diagram of the boost regulator module provided in Embodiment 5 of this application. Figure 10 As shown, 5.0V_BOOST is the standby discharge voltage, 5.0V_SYS is the output voltage, and C4, C6, and C7 are capacitors. C4 is used for filtering and stabilizing the standby discharge voltage, and C6 and C7 are used for filtering and stabilizing the output voltage. U2 is an internal integrated switching element, COMP is a comparator, SS is a switch selector, GND is the ground terminal, and EN is the enable pin. L1 is the inductor in the boost converter, D2 is the diode in the boost converter, and R11 and R21 are resistors used for voltage division. 5.0V_FB is the voltage reference point, and R14 and R24 are resistors that can form a voltage divider network together with R11 and R21. C8 is a capacitor used for filtering and stabilizing the feedback signal. T1 and T2 are test points.

[0149] Figure 11 This is a structural example diagram of the intelligent power failure protection and voltage stabilization system provided in Embodiment 5 of this application. Figure 3 , Figure 5 , Figure 8 as well as Figure 10 Combination connection methods such as Figure 11 As shown.

[0150] The advantage of this design is that by incorporating internally integrated switching elements, boost conversion components, voltage regulation feedback components, and control and protection components, the stability and anti-fluctuation capability of the output voltage can be improved, effectively suppressing the impact of external interference and load changes on the output voltage.

[0151] Example 6

[0152] Figure 12 This is a flowchart illustrating the control method of the intelligent power failure protection and voltage stabilization system provided in Embodiment Six of this application. Figure 12 As shown, the specific steps include the following:

[0153] S1201. The input voltage is detected by the automatic detection module, and a detection signal is output.

[0154] S1202. The logic control module controls the working state of the supercapacitor module and the boost regulator module according to the detection signal.

[0155] S1203, in the case that the working state of the super capacitor module is turned on, the super capacitor module serves as a backup power supply and outputs a backup discharge voltage;

[0156] S1204, in the case that the working state of the voltage boosting and stabilizing module is turned on, the backup discharge voltage is subjected to voltage boosting and stabilizing adjustment processing.

[0157] In the embodiments of the present application, the input voltage is detected by the automatic detection module, and a detection signal is output; the working state of the super capacitor module and the voltage boosting and stabilizing module is controlled by the logic control module according to the detection signal; in the case that the working state of the super capacitor module is turned on, the super capacitor module serves as a backup power supply and outputs a backup discharge voltage; in the case that the working state of the voltage boosting and stabilizing module is turned on, the backup discharge voltage is subjected to voltage boosting and stabilizing adjustment processing. The control method of the intelligent power-off protection and voltage stabilizing system can realize real-time monitoring of the input voltage, and provide power-off protection in time when an abnormality is monitored, and the output voltage of the power-off protection is subjected to voltage boosting and stabilizing processing to provide stable voltage output for external circuits, thereby guaranteeing the safety of electronic devices and stored data thereof.

[0158] Embodiment Seven

[0159] Figure 13 is a structural schematic diagram of an electronic device provided in an embodiment of the present application. As shown in Figure 13 The present application also provides an electronic device 1300, which includes a processor 1301, a memory 1302, and a program or instruction stored in the memory 1302 and executable on the processor 1301.

[0160] It should be noted that the electronic device in the embodiments of the present application includes the mobile electronic device and the non-mobile electronic device described above.

[0161] Embodiment Eight

[0162] The present application also provides a readable storage medium, which stores a program or instruction.

[0163] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0164] Embodiment Nine

[0165] The present application also provides a chip, which includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run a program or instruction.

[0166] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip, etc.

[0167] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles, or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles, or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0168] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, or network equipment, etc.) execute the methods described in various embodiments of the present application.

[0169] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not limiting, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

[0170] The above merely describes the preferred embodiments of the present application and the technical principles applied. The present application is not limited to the specific embodiments described herein, and various obvious changes, modifications and replacements made by those skilled in the art without departing from the scope of the present application shall not be excluded. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. An intelligent power down protection and voltage regulation system, characterized in that, The intelligent power-off protection and voltage stabilizing system comprises: An automatic detection module for detecting an input voltage and outputting a detection signal; A logic control module connected with the automatic detection module for controlling working states of a super capacitor module and a voltage boosting and stabilizing module according to the detection signal; The super capacitor module connected with the logic control module for outputting a standby discharge voltage as a standby power supply when the working state is on; The voltage boosting and stabilizing module connected with the logic control module and the super capacitor module for performing voltage boosting and stabilizing adjustment processing on the standby discharge voltage when the working state is on; The logic control module comprises: A microcontroller for receiving the detection signal and outputting a control instruction according to the detection signal; An NPN triode comprising a base, an emitter and a collector, the base being connected with an output end of the microcontroller, the emitter being connected with a ground electrode, for switching a first PMOS tube to a connected state when the base receives the control instruction; The first PMOS tube comprising a gate, a source and a drain, the gate being connected with the collector of the NPN triode, the source being connected with the super capacitor module, the drain being connected with the voltage boosting and stabilizing module, for switching the working states of the super capacitor module and the voltage boosting and stabilizing module to on in the connected state; The super capacitor module comprises: A super capacitor comprising a positive electrode and a negative electrode for outputting a standby discharge voltage; A second PMOS tube comprising a gate, a source and a drain, the gate being connected with the emitter of the NPN triode, the source being connected with the positive electrode of the super capacitor, the drain being connected with a voltage stabilizing component, for transmitting the standby discharge voltage to the voltage boosting and stabilizing module in the connected state; The voltage stabilizing component connected with the super capacitor in parallel for keeping the standby discharge voltage stable; Correspondingly, the NPN triode is further used for switching the second PMOS tube to the connected state when the base receives the control instruction.

2. The intelligent power down protection and voltage regulation system of claim 1, wherein, The automatic detection module comprises: A comparator for inputting an input voltage and a reference voltage at input ends respectively and outputting a detection signal according to a comparison result; wherein the detection signal comprises a high level signal and a low level signal; A feedback resistor connected with an output end of the comparator for feeding back the detection signal to the input end of the comparator; A pull-up resistor connected with the output end of the comparator and receiving the reference voltage, for keeping the detection signal as the high level signal when there is no input voltage at the input end of the comparator.

3. The intelligent power down protection and voltage regulation system of claim 1, wherein, The super capacitor is further used for storing electric energy; Correspondingly, the super capacitor module further comprises: A third PMOS tube comprising a gate, a source and a drain, the gate being connected with an output end of a controlled end of an optoelectronic coupler and a ground electrode, the source receiving an input voltage, the drain being connected with an input end of a current flow direction control component, for transmitting the input voltage to the positive electrode of the super capacitor in the connected state; A current flow control component includes at least two diodes for preventing current from flowing to the third PMOS transistor when the super capacitor outputs the standby discharge voltage; wherein an output end of the current flow control component is connected to a positive electrode of the super capacitor; A photoelectric coupler includes a master control end and a controlled end, an input end of the master control end is connected to a positive electrode of the super capacitor, an output end of the master control end is connected to a ground electrode, and an input end of the controlled end receives an input voltage for switching the third PMOS transistor to an off state when the super capacitor has sufficient energy.

4. The intelligent power-down protection and voltage regulation system of claim 3, wherein, The super capacitor module further includes: A first resistor connected in series to a source electrode of the third PMOS transistor for controlling the current flowing through the third PMOS transistor and providing a bias voltage for a PNP transistor; The PNP transistor includes a base electrode, an emitter electrode, and a collector electrode, the base electrode is connected to the source electrode of the third PMOS transistor, the emitter electrode receives an input voltage, and the collector electrode is connected to a second resistor for causing current diversion to the second resistor in a connected state; A second resistor connected in series to a gate electrode of the third PMOS transistor and a ground electrode for releasing overcurrent and overvoltage energy.

5. The intelligent power down protection and voltage regulation system of claim 1, wherein, The voltage boosting and stabilizing module includes: An internal integrated switching element for controlling a voltage boosting conversion component according to a standby discharge voltage and / or a feedback signal of a voltage stabilizing feedback component to obtain an output voltage; The voltage boosting conversion component includes an inductor and a diode for boosting or converting an input voltage under the control of the internal integrated switching element; wherein the inductor is used for storing or releasing energy, and the diode is used for providing a freewheeling path for the inductor when the internal integrated switching element is off; The voltage stabilizing feedback component is used for feeding back the output voltage to obtain a feedback signal; The control protection component is used for starting or stopping the voltage boosting and stabilizing module and testing the voltage boosting and stabilizing module.

6. The intelligent power-down protection and voltage regulation system of claim 5, wherein, The internal integrated switching element includes a comparator, a switch selector, and a ground end; The voltage stabilizing feedback component includes: A voltage reference point for comparing with the output voltage; A voltage dividing device for dividing the output voltage to obtain the feedback signal; A capacitor for filtering and stabilizing the feedback signal together with the comparator, the switch selector, and the ground end.

7. The intelligent power down protection and voltage regulation system of claim 5, wherein, The internal integrated switching element includes an enable pin; wherein the enable pin is used for starting or stopping the voltage boosting and stabilizing module; The control protection component includes: A test point as a test interface of the voltage boosting and stabilizing module; A ground point as a common reference point of the voltage boosting and stabilizing module.

8. A control method of an intelligent power-down protection and voltage stabilization system, characterized by, The method is performed by the intelligent power-down protection and voltage stabilizing system according to any one of claims 1-7; and the method includes: detecting an input voltage by an automatic detection module and outputting a detection signal; controlling working states of a super capacitor module and a voltage boosting and stabilizing module according to the detection signal by a logic control module; outputting a standby discharge voltage as a backup power supply when the working state of the super capacitor module is on. In a case where the working state of the boost voltage stabilizing module is turned on, the standby discharge voltage is subjected to boost voltage stabilizing adjustment processing.

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