Power supply circuit for destroying key components in industrial machine tool during startup and shutdown

Abstract

The utility model discloses a power supply circuit for destroying key components in an industrial machine tool during startup and shutdown, which comprises a main power supply, an ideal diode, a voltage comparison module, a boost power supply module, an MCU (Microprogrammed Control Unit) logic processing module, a standby power supply and a special module, and is characterized in that the main power supply supplies power to the special module and the MCU through the ideal diode and is simultaneously connected with the voltage comparison module; when the main power supply voltage is lower than the preset voltage of the comparator, the module is automatically switched to the standby power supply, and the boost power supply module boosts the standby power supply to ensure stable power supply. The MCU logic processing module can configure destruction logic, such as long-press or combination key destruction, and generates a destruction signal when conditions are met. The destruction signal generation circuit comprises a jitter removal and logic control circuit, and ensures that the destruction signal is accurately output to a special module to trigger data erasing or physical destruction operation. The circuit is simple in structure, rapid in response, capable of effectively protecting sensitive information and suitable for high-safety equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to data security technical field especially relates to a key component switch machine destruction power supply circuit in industrial machine tool. BACKGROUND

[0002] With the rapid development of information technology, special modules (such as security encryption chips, sensitive data storage, etc.) embedded in electronic devices play a key role in protecting data security and device integrity. These modules not only need to obtain stable power support when the device is running normally, but also need to continue to maintain power supply when the device is powered off or the power supply is abnormal to ensure the integrity and security of internal data. In addition, in the event of an emergency (such as the device being illegally acquired or attempting to tamper), a mechanism is needed to quickly send a destruction signal to trigger the special module to perform data destruction operations to prevent sensitive information from being leaked.

[0003] Existing power management solutions usually focus on switching power supply under different power states, however, there is a lack of mechanism to provide reliable destruction signals while maintaining continuous power supply. In addition, existing solutions are relatively single in the triggering mode of the destruction signal, making it difficult to meet diverse security needs. Therefore, there is an urgent need for a power supply circuit that can both continuously power in the off state and ensure the security of sensitive data through flexible destruction signal triggering methods to meet the needs of high-security electronic devices. SUMMARY

[0004] The utility model aims at providing a key component switch machine destruction power supply circuit in industrial machine tool, which solves the above problems.

[0005] The utility model realizes by the following technical scheme:

[0006] A key component switch machine destruction power supply circuit in industrial machine tool, comprising main power supply, ideal diode, voltage comparison module, boost power supply module, MCU logic processing module, backup power, special module, characterized in that the main power supply output end is connected with ideal diode and voltage comparison module, one side of ideal diode is connected with special module and MCU logic processing module at the same time, voltage comparison module is directly connected with boost power supply module, boost power supply module is connected to MCU logic processing module, and the backup power is connected to boost power supply module.

[0007] Further,

[0008] The ideal diode circuit is composed of MOS tubes, which is used to prevent reverse current flow, wherein the MOS tubes are N-gate MOS tubes and P-gate MOS tubes to realize the characteristics of traditional diodes.

[0009] Further,

[0010] The boost power module adopts a high-efficiency DC-DC converter to ensure a stable output standard operating voltage under different input voltages.

[0011] Further,

[0012] The boost power module comprises a reference voltage source, a comparator and a switching switch, the comparator compares the voltage of the reference voltage source with the voltage of the current main power supply, and if the voltage of the current main power supply is lower than the preset voltage in the comparator, the comparator outputs a driving signal to drive the switching switch, so as to realize automatic switching from the main power supply to the backup power supply.

[0013] Further,

[0014] The MCU logic processing module can receive an input signal of a destruction button and configure different destruction judgment logics, and generate a destruction control signal output to a destruction signal generation circuit when the destruction judgment logic is met.

[0015] Further,

[0016] The destruction signal generation circuit comprises a destruction button, a debouncing circuit and a logic control circuit, when the destruction button is pressed and the destruction judgment logic in the MCU logic processing module is met, the destruction control signal generated by the MCU is received by the logic control circuit and a destruction signal is generated and output to a special module.

[0017] Further,

[0018] The special module can perform a destruction operation after receiving the destruction signal.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. In the case that the main power supply of the equipment is turned off or the voltage is abnormal, the required voltage can still be provided for the special module through the backup power supply and the boost module, which ensures that the special module can continue to work normally when the equipment is powered off or the power supply fails, and maintains the integrity and security of internal data.

[0021] 2. By introducing the MCU logic processing module, the trigger mode of the destruction button can be configured as long-press destruction or combination key destruction, which improves the flexibility and security of the destruction operation, prevents misoperation, and enables the equipment to adapt to different security strategies and use scenarios.

[0022] 3. Through the independent destruction signal generation circuit, the destruction signal can be generated without cutting off the power supply, the special module can perform data destruction operation according to the destruction signal, and the data security is improved, and the hardware-level destruction method is more thorough and reliable, which ensures that sensitive information cannot be illegally obtained or tampered with.

[0023] 4. The ideal diode circuit composed of high-efficiency DC-DC converter and MOS tube reduces energy loss and heat, and improves the efficiency and reliability of the circuit BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0025] Figure 1 The circuit module of the present application is schematically shown. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with embodiments and drawings, but the embodiments of the present application are not limited thereto.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "back", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0028] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "opened", "mounted", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Embodiment, see Figure 1 :

[0030] A key component switch-off destruction power supply circuit in an industrial machine tool, comprising main power supply, ideal diode, voltage comparison module, boost power supply module, MCU logic processing module, standby power, special module, characterized in that the main power supply output end is connected with the ideal diode and the voltage comparison module, one side of the ideal diode is connected with the special module and the MCU logic processing module at the same time, the voltage comparison module is directly connected with the boost power supply module, the boost power supply module is connected to the MCU logic processing module, and the standby power is connected to the boost power supply module.

[0031] Further,

[0032] The ideal diode circuit is composed of MOS tubes, which are used to prevent reverse current flow, wherein the MOS tubes are N-channel MOS tubes and P-channel MOS tubes that are combined to achieve the characteristics of a traditional diode.

[0033] Traditional diodes have a certain voltage drop when conducting, which can cause power loss and heating problems, especially in low-voltage and high-current application scenarios, where the loss is more obvious. MOS tubes have lower on-resistance, which can significantly reduce the on-voltage drop and power consumption.

[0034] By using N-channel and P-channel MOS tubes in combination, the one-way conduction characteristics of an ideal diode can be achieved, while significantly reducing energy loss and heating, improving the efficiency and reliability of the circuit. The switching speed of MOS tubes is fast, which can quickly respond to changes in current direction, effectively preventing reverse current flow and protecting the circuit and power supply.

[0035] Further,

[0036] The boost power module uses a high-efficiency DC-DC converter to ensure stable 5V output voltage under different input voltages.

[0037] In many electronic devices, the power supply voltage may not be stable or lower than the required operating voltage. Traditional voltage boosting methods may be less efficient and unable to stably output the required voltage under different input voltages, and lack the necessary protection functions. A high-efficiency DC-DC converter can stably output 5V voltage within a wide input voltage range, ensuring the normal operation of the circuit under various power supply conditions. The DC-DC converter also has overvoltage and overcurrent protection functions, which can effectively prevent the circuit from being damaged due to abnormal voltage or current, improving the stability and safety of the system.

[0038] Further,

[0039] The boost power module includes a reference voltage source, a comparator, and a switching switch. The comparator compares the voltage of the reference voltage source with the current main power supply voltage. If the current main power supply voltage is lower than the preset voltage in the comparator, the comparator outputs a driving signal to drive the switching switch, realizing automatic switching from the main power supply to the backup power.

[0040] By using a comparator, the main power supply voltage and the reference voltage source voltage can be compared in real time. When the main power supply voltage is lower than the set value, such as 2.5V, the comparator quickly outputs a control signal to drive the switching switch, realizing automatic and seamless switching from the main power supply to the backup power. The advantage lies in fast response speed and accurate judgment, ensuring that the device can continue to work uninterruptedly when the main power supply fails, enhancing the reliability and continuity.

[0041] Further,

[0042] The MCU logic processing module can receive the input signal of the destruction button, and configure different destruction judgment logics, and generate a destruction control signal output to the destruction signal generation circuit when the destruction judgment logic is met.

[0043] In an embodiment,

[0044] The MCU logic processing module can flexibly configure the destruction logic according to actual needs, such as long-press destruction or combination key destruction, etc. This flexibility enables the device to adapt to different security strategies and use scenarios, enhancing the security and configurability of the device. At the same time, the fast processing capability of the MCU can ensure that the destruction control signal is generated quickly when the destruction condition is met, protecting sensitive information in time.

[0045] Further,

[0046] The destruction signal generation circuit includes a destruction button, a debouncing circuit and a logic control circuit. When the destruction button is pressed and the destruction judgment logic in the MCU logic processing module is met, the destruction control signal generated by the MCU is received by the logic control circuit and a destruction signal is output to the special module.

[0047] The debouncing circuit can effectively eliminate the interference caused by key jitter, ensuring that the MCU receives accurate key signals. The logic control circuit accurately generates a destruction signal and outputs it to the special module according to the destruction control signal generated by the MCU, ensuring the accuracy and reliability of the destruction operation and avoiding problems such as data loss or device damage caused by false triggering.

[0048] Further,

[0049] The special module can perform a destruction operation after receiving the destruction signal.

[0050] The special module can perform data erasure or physical destruction operation through internal control logic after receiving the destruction signal. This hardware-level destruction method is more thorough and reliable, ensuring that sensitive information cannot be illegally obtained or tampered with, greatly improving the security of the device.

[0051] The principle of the utility model is:

[0052] The main power supply is connected through an ideal diode and a voltage comparison module. The ideal diode is connected to the special module and the MCU logic processing module at the same time. The voltage comparison module is connected to the boost circuit. The boost circuit is connected to the MCU logic processing module. The backup power is connected to the boost circuit. The ideal diode is composed of N-channel and P-channel MOS tubes, preventing reverse current flow and reducing energy loss.

[0053] The boost power module adopts a high-efficiency DC-DC converter, stably outputs 5V voltage, and has overvoltage and overcurrent protection functions.When the main power voltage is lower than the preset value in the comparator, the comparator in the voltage comparison module outputs a driving signal, and the switching switch automatically switches the power supply from the main power to the backup power, ensuring continuous operation of the circuit; the MCU logic processing module receives the input signal of the destruction button, such as long pressing or corresponding combination key pressing of the destruction button, generates a destruction control signal when the conditions of the destruction button are met, and outputs the destruction control signal to the destruction signal generation circuit; the destruction signal generation circuit includes a destruction button, a debouncing circuit and a logic control circuit, and generates a destruction signal output to a special module when the button is pressed and the MCU logic is met, triggers data erasure or device physical destruction operation, and ensures the safety of sensitive information.

[0054] When the circuit is in a normal power supply state, the main power supplies power to the special module through an ideal diode, and the boost power module keeps the voltage of the backup power rising to the standard working voltage, but is not enabled, and the voltage comparison module continuously monitors the voltage of the main power supply; if the voltage of the main power supply is normal, the backup power is in standby state;

[0055] When the voltage of the main power supply is lower than the preset value, the voltage comparison circuit triggers the switching switch to enable the backup power, and the boost module raises the backup power voltage to the standard working voltage of the circuit to continue to supply power to the circuit.

[0056] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only a specific embodiment of the utility model and does not limit the protection scope of the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A circuit for destroying power supply in a key component switch-off of an industrial machine tool, characterized in that, The application relates to a power supply circuit, which comprises a main power supply, an ideal diode, a voltage comparison module, a boost power supply module, an MCU logic processing module, a backup power supply and a special module.

2. An industrial machine key component switch-off destruction power supply circuit according to claim 1, characterized in that, The ideal diode circuit is composed of MOS tubes, which are used for preventing reverse current flow, wherein the MOS tubes are composed of N-gate MOS tubes and P-gate MOS tubes to realize the characteristics of traditional diodes.

3. An industrial machine key component switch-off destruction power supply circuit according to claim 1, characterized in that, The boost power supply module adopts a high-efficiency DC-DC converter to ensure stable output standard working voltage under different voltage inputs.

4. An industrial machine key component switch-off destruction power supply circuit according to claim 3, characterized in that, The boost power supply module comprises a reference voltage source and a comparator, the comparator compares the voltage of the reference voltage source with the voltage of the current main power supply, if the voltage of the current main power supply is lower than the preset voltage in the comparator, the comparator outputs a driving signal to drive a switching switch, so that automatic switching from the main power supply to the backup power supply is realized.

5. An industrial machine key component switch-off destruction power supply circuit according to claim 1, characterized in that, The MCU logic processing module can receive an input signal of a destruction button and configure different destruction judgment logics, and generates a destruction control signal output to a destruction signal generation circuit when the destruction judgment logics are satisfied.

6. An industrial machine key component switch-off and power destruction circuit according to claim 5, wherein, The destruction signal generation circuit comprises a destruction button, a debouncing circuit and a logic control circuit, when the destruction button is pressed and the destruction judgment logics in the MCU logic processing module are satisfied, the destruction control signal generated by the MCU is received by the logic control circuit and a destruction signal is generated and output to the special module.

7. An industrial machine key component switch-off and power destruction circuit according to claim 6, characterized in that, The special module can receive the destruction signal and execute a destruction operation.

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