TWI412198B - Over-current protecting device for multiple high voltage motive apparatuses and method thereof - Google Patents

Abstract

An over-current protecting device for multiple high voltage motive apparatuses comprises a comparator module and a logic operation module. The comparator module receives multiple voltages generated from multiple working currents of multiple high voltage motive apparatuses, and compares the voltages with at least one reference voltage, so as to generate multiple comparison results, wherein the high voltage motive apparatuses are multiple solenoids, multiple clutches, or combination of the above twos. The logic operation module receives the comparison results, and generates at least one control signal to multiple high voltage motive apparatus driving circuits according to the comparison results, and thus the high voltage motive apparatus driving circuits drives the high voltage motive apparatuses according to the at least one control signal.

Description

Multiple high voltage power component overcurrent protection device and method thereof

The present invention relates to a printing apparatus, and more particularly to a multiple high voltage power element overcurrent protection apparatus and method thereof for simultaneously protecting a plurality of high voltage power components in a printing apparatus.

Generally, a multi-function laser printer or transaction machine requires a plurality of high-voltage power components to convert power to power for smooth printing. The high voltage power component may be a solenoid or an electronic clutch. However, when a multi-function laser printer or a printer (MFP) malfunctions or instantaneously malfunctions (for example, a paper jam causes the components to stop), these high-voltage power components and their power circuits may continue to receive high voltage. Or high current, but the crisis of burning first. More seriously, the burning of these high-voltage power components may spread to other components, causing the entire multi-function laser printer or transaction machine to become flaming.

The high-voltage power components of traditional multi-function laser printers or printers are equipped with sheet metal to passively prevent the burning of high-voltage power components from spreading to other components. However, the addition of sheet metal will increase the manufacturing cost of a multi-function laser printer or transaction machine, and it will not immediately protect the high-voltage power components and their power circuits. Accordingly, there is a need to design a protection circuit to directly protect the high-voltage moving power components such as the solenoid valve and the electronic clutch from failure, thereby avoiding the burning of the solenoid valve and the electronic clutch, thereby saving the cost of adding the sheet metal.

The invention provides a multi-high voltage power component overcurrent protection device, which comprises a comparison module and a logic operation module. The comparison module receives a plurality of voltages generated by the plurality of operating currents of the plurality of high voltage power components, and compares the plurality of voltages with the at least one reference voltage to generate a plurality of comparison results, wherein the plurality of high voltage powers The component is a plurality of solenoid valves, a plurality of electronic clutches, or a combination thereof. The logic operation module receives the plurality of comparison results, and generates at least one control signal to the plurality of high voltage power component driving circuits according to the plurality of comparison results, and the plurality of high voltage power component driving circuits respectively drive the current according to the at least one control signal Multiple high voltage power components.

In an embodiment of the present invention, the multiple high-voltage power component overcurrent protection device further includes a total power control module, wherein the logic operation module further generates a total power control signal to the total power control module according to the plurality of comparison results, And the total power control module generates a total power off control signal to the total power circuit according to the total power control signal, so that the total power circuit turns off the multiple high voltage power component voltage sources provided by the total power circuit according to the total power off control signal.

In an embodiment of the invention, the multiple high voltage power component overcurrent protection device includes an integrator and a comparator. The integrator receives the total power control signal and produces an integrated voltage. The comparator receives the preset voltage and the integrated voltage, compares the integrated voltage with the preset voltage to generate a total power off control signal.

In an embodiment of the invention, when the operating current generated by one of the plurality of multiple high-voltage power components generates a voltage greater than the at least one reference voltage, the logic operation module outputs at least one control signal to turn off the plurality of high-voltage power One, all or part of the component, or the total power control module turns off the high voltage power component voltage source provided by the main power circuit.

The invention provides a method for overcurrent protection of multiple high voltage power components, the steps of which are as follows. First, a plurality of voltages generated by a plurality of operating currents of a plurality of high voltage power components are received, wherein the plurality of high voltage power components are a plurality of solenoid valves, a plurality of electronic clutches, or a combination thereof. Then, the plurality of voltages are respectively compared with at least one reference voltage to generate a plurality of comparison results. Then, the plurality of comparison results are subjected to at least one logic operation to generate at least one control signal to the plurality of high voltage power component driving circuits. Thereafter, the plurality of high voltage power component drive circuits respectively drive the plurality of high voltage power components according to the at least one control signal.

In the embodiment of the present invention, the above multiple multiple high voltage power element overcurrent protection method has other steps as follows. The plurality of comparison results are subjected to the at least one logic operation to generate a total power control signal to the overall power control module. Then, the total power control module generates a total power off control signal to the total power circuit according to the total power control signal, so that the total power circuit turns off the high voltage power component voltage source provided by the total power circuit according to the total power off control signal.

In the embodiment of the present invention, the above-described steps of generating the total power-off control signal are described in detail below. First, the total power control signal is integrated to produce an integrated voltage. Then, the integrated voltage and the preset voltage are compared to generate a total power off control signal.

Based on the above, the multiple high-voltage power component overcurrent protection device provided by the present invention and the method thereof can synchronously turn off the driving circuit and the total power supply circuit when the high-voltage power component is faulty or abnormal, or sequentially turn off part of the driving circuit and The total power circuit is used to achieve the effect of instant protection of multi-function laser printers or transaction machines. In this way, the sheet metal of the high-voltage power component can be removed, and the manufacturing cost can be reduced.

The above described features and advantages of the present invention will be more apparent from the following description.

Embodiments of the present invention provide a multi-high voltage power component overcurrent protection device for overcurrent protection of a high voltage dynamic power component such as a solenoid valve or an electronic clutch when a multifunctional laser printer or a transaction machine malfunctions.

First, please refer to FIG. 1. FIG. 1 is a schematic diagram of a multiple high voltage power element overcurrent protection device according to an embodiment of the present invention. The multiple high voltage power component overcurrent protection device 1 includes a comparison module 14 and a logic operation module 15. In this embodiment, the high-voltage power components are exemplified by the solenoid valves S1 to S3, but the multiple high-voltage power component overcurrent protection device 1 of the present invention is not limited to the use of the solenoid valves S1 to S3. For the electronic clutch, the present invention The multiple high voltage power element overcurrent protection device 1 can also be applied. In addition, although FIG. 1 exemplifies the solenoid valves S1 to S3, the number of solenoid valves is not intended to limit the present invention.

The solenoid valves S1 to S3 are driven by the solenoid valve drive circuits 11 to 13, respectively. The solenoid valve drive circuits 11 to 13 receive the solenoid valve voltage VSOLENIOD having a higher voltage than the supply voltage of the other components, and determine whether to supply the drive voltage or the drive current to the solenoid valves S1 to S3 in accordance with the control signals CTR1 to CTR3, respectively. The solenoid valve current detecting circuits DET1 to DET3 are respectively connected to the solenoid valve driving circuits S1 to S3 for detecting the operating currents I1 to I3 of the solenoid valves S1 to S3, and generating voltages V1 to V3 according to the operating currents I1 to I3, respectively. In this embodiment, the solenoid valve detecting circuits DET1 to DET3 are respectively composed of the resistors R1 to R3, but the embodiments of the solenoid valve detecting circuits DET1 to DET3 of the present invention are not limited thereto.

The comparison module 14 is configured to receive the voltages V1 to V3 generated by the operating currents I1 to I3 corresponding to each of the solenoid valves S1 to S3, and compare the voltages V1 to V3 with the reference voltages VREF1 to VREF3, respectively, to generate a comparison result COM_OUT1. ~COM_OUT3. In this embodiment, the solenoid valve current detecting circuits DET1 to DET3 are separately designed from the comparison module 14, but in practical applications, the comparison module 14 may include solenoid valve current detecting circuits DET1 to DET3 therein.

In addition, the comparison module 14 includes a plurality of comparators COM1 to COM3 implemented using an operational amplifier. Comparator COM1 is used to compare the voltage V1 received by its negative input terminal with the reference voltage VREF1 received by its positive input terminal to output a comparison result COM_OUT1; comparator COM2 is used to compare the voltage V2 received by its negative input terminal with its positive input. The reference voltage VREF2 received by the terminal outputs a comparison result COM_OUT2; and the comparator COM3 compares the voltage V3 received by the negative input terminal with the reference voltage VREF3 received by the positive input terminal thereof to output a comparison result COM_OUT3. It should be noted that the embodiment of the comparison module 14 is not limited to the embodiment of FIG.

In addition, the reference voltages VREF1 to VREF3 can be generated by the reference voltage generators VDIV1 to VDIV3. The reference voltage generator VDIV1 includes series resistors R4, R5 for receiving the system voltage VCC and generating a reference voltage VREF1 according to the ratio of the series connected resistors R4, R5. Similarly, the reference voltage generator VDIV2 generates the reference voltage VREF2 according to the ratio of the series connected resistors R6, R7; and the reference voltage generator VDIV3 generates the reference voltage VREF3 according to the ratio of the series connected resistors R8, R9. The resistance values of the resistors R4 to R9 can be designed according to the current limiting values of the respective solenoid valves S1 to S3, in other words, different reference voltages VREF1 to VREF3 are generated according to the current limiting values of the solenoid valves S1 to S3. In this embodiment, the reference voltage generators VDIV1 VVDIV3 are implemented outside the comparison module 14, but in practical applications, the comparison module 14 may include reference voltage generators VDIV1 VVDIV3 therein.

Next, the logic operation module 15 receives the comparison results COM_OUT1 to COM_OUT3, and performs at least one or more logic operations based on the comparison results COM_OUT1 to COM_OUT3 to generate a plurality of control signals CTR1 to CTR3 to the solenoid valve drive circuits S1 to S3. The control signals CTR1 C CTR3 may be the same control signal or different control signals. The logical operations for generating the control signals CTR1 C CTR3 may be the same logical operations or different logical operations.

In this embodiment, the multiple high voltage power component overcurrent protection device 1 may further include a total power control module 18, and the logic operation module 15 generates a total power control signal Y2 according to the comparison results COM_OUT1 to COM_OUT3 to the total power control module. 18. The total power control module 18 generates a total power off control signal COM_OUT4 to the main power supply circuit 19 according to the total power control signal Y2 to control whether the total power supply circuit 19 stops supplying the solenoid valve voltage VSOLENOID (if the high voltage power component is an electronic clutch, Electronic clutch voltage VCLUTCH) and motor voltage VMOTOR.

In FIG. 1, the multiple high voltage power component overcurrent protection device 1 may also include a processor 16. The processor 16 is configured to receive the shutdown indication signal Y2 (in other embodiments, the processor 16 may also receive the shutdown indication signal Y1), the shutdown indication signal Y2 is used to indicate that the solenoid valves are faulty, and the processor 16 is in accordance with the shutdown indication. Signal Y2 is generated to generate cue signals ENS1 to ENS3. The logic operation module 15 generates control signals CTR1 to CTR3 based on the presentation signals ENS1 to ENS3 and the shutdown instruction signal Y2.

The multiple high voltage power component overcurrent protection device 1 may also include a display 17. The processor 16 also generates an alert signal to the display module 17 according to the shutdown indication signal Y2, and the display module 17 displays the error state of the solenoid valves S1 S S3 according to the warning signal. Accordingly, the user or maintenance personnel can eliminate the malfunction based on the error state of the solenoid valves S1 to S3 displayed on the display module 17.

In this embodiment, the logic operation module 15 includes a plurality of logic AND gates AND1 to AND5. The logic gate AND1 performs a logical AND operation on the comparison results COM_OUT1, COM_OUT to output a shutdown indication signal Y1. The logic gate AND2 performs a logical AND operation on the comparison result COM_OUT3 and the shutdown indication signal Y1 to output a shutdown indication signal Y2, which is simultaneously output to the total power supply control signal Y2 of the total power supply control module 18. The logic gate AND3 performs a logical AND operation on the hint signal ENS1 and the turn-off instruction signal Y2 to output the control signal CTR1. The logic gate AND4 performs a logical AND operation on the hint signal ENS2 and the turn-off instruction signal Y2 to output the control signal CTR2. The logic gate AND5 performs a logical AND operation on the hint signal ENS3 and the turn-off instruction signal Y2 to output the control signal CTR3.

When the solenoid valves S1 to S3 are normally operated, excessive operating currents I1 to I3 are not generated. At this time, the comparison results COM_OUT1 to COM_OUT3 are logic high level signals, and the shutdown indication signal Y2, the control signals CTR1 to CTR3, the prompt signals ENS1 to ENS3, and the total power off control signal COM_OUT4 are all logic high level signals. Thus, the solenoid valve drive circuits 11 to 13 can drive the electromagnetic gates S1 to S3.

However, when one of the solenoid valves fails (for example, the solenoid valve S1 fails), the comparison result COM_OUT1 becomes a logic low level signal, and the closing indication signal Y2, the control signals CTR1 to CTR3, the prompt signals ENS1 to ENS3, and the total power supply are turned off. The turn-off control signal COM_OUT4 becomes a logic low level signal. Thus, the solenoid valve driving circuits 11 to 13 are disabled, and the electromagnetic gates S1 to S3 cannot be driven. At the same time, the total cell circuit 19 is also disabled, and the motor voltage VMOTOR and the solenoid valve voltage VSOLENOID are no longer supplied.

In this embodiment, if there is a solenoid valve failure, the solenoid valve drive circuits 11 to 13 and the main power supply circuit 19 are simultaneously turned off. However, it should be noted that the present invention is not limited thereto. In another embodiment, the logic operation module 15 can also be implemented by using a plurality of different logic gates to partially or partially disable the solenoid valve drive circuits 11-13 to protect portions of the solenoid valves S1 S S3 or All, and then turn off the protection purpose of the main power circuit 19. In summary, the design of the logic operation module 15 can be designed according to the protection order of each component.

The total power control module 18 includes an integrator VINT and a comparator COM4. The integrator VINT receives the total power control signal Y2 and generates an integrated voltage V4. The integrator VINT can be implemented using resistor R10 and capacitor C1, but there are other types of implementations of integrator VINT, and embodiments of integrator VINT are not intended to limit the invention. The comparator COM4 compares the preset voltage VPRESET received at its positive input terminal with the integrated voltage V4 received by its negative input terminal to generate a total power-off control signal COM_OUT4. The preset voltage VPRESET can be generated by the reference voltage generator VDIV4, and the reference voltage generator VDIV4 includes two resistors R11 and R12 connected in series. As before, the implementation of the reference voltage generator VDIV4 is not intended to limit the invention. In addition, comparator COM4 can also be included in comparison module 14, rather than a separate comparator.

Next, please refer to FIG. 2. FIG. 2 is a schematic diagram of an implementation of a comparison module according to an embodiment of the present invention. The comparison module 14 can be implemented using two existing comparator chips 21, 22 in the market. In this embodiment, the comparator COM4 of FIG. 1 is also included in the comparison module 14 to thereby reduce the wafer area and manufacturing. cost. The comparator chip 21 or 22 includes two comparators and has eight pins, and the first to eighth pins are respectively defined as the output terminal OUT1 of the first comparator and the negative of the first comparator. Input -IN1, positive input of the first comparator +IN1, ground terminal VEE, positive input of the second comparator +IN2, negative input of the second comparator -IN2, second comparator The output terminal OUT2 is connected to the system voltage terminal VCC.

The first to eighth pins of the comparator chip 21 are respectively connected to the comparison result COM_OUT1, the voltage V1, the reference voltage VREF1, the ground, the preset voltage VPRESET, the voltage V4, the total power-off control signal COM_OUT4, and the 5 volt voltage. The first to eighth pins of the comparator chip 22 are connected to the comparison result COM_OUT3, the voltage V3, the reference voltage VREF3, the ground, the reference voltage VREF2, the voltage V2, the comparison result COM_OUT2, and the 5 volt voltage, respectively. Here, the comparator COM_OUT4 of the total power control module 18 and the comparator COM_OUT1 are implemented on the same CO939 wafer 21, thereby reducing the use of redundant CO939 comparator chips or other comparator chips.

Next, please refer to FIG. 3. FIG. 3 is a schematic diagram of an implementation of a logic operation module according to an embodiment of the present invention. The logic operation module 15 of FIG. 1 can be implemented using two existing CD74HC08 logic and gate wafers 31, 32 on the market. The logic and gate CD74HC08 wafer 31 or 32 has four logic gates and has a total of 14 pins. The first to the 14th pins are defined as the first logic and gate input 1A, the first logic and gate input 1B, the first logic and gate output 1Y, and the second logic and gate. Input 2A, second logic and gate input 2B, second logic and gate output 2Y, ground GND, third logic and gate output 3Y, third logic and gate input Terminal 3A, third logic and gate input 3B, fourth logic and gate output 4Y, fourth logic and gate input 4A, fourth logic and gate input 4b, and system voltage terminal VCC.

The first to the 14th pins of the logic and gate wafer 31 are respectively connected to the comparison result COM_OUT1, the comparison result COM_OUT2, the shutdown indication signal Y1, the shutdown indication signal Y1, the comparison result COM_OUT3, the shutdown indication signal Y2, the ground, the control signal CTR1, and the off The indication signal Y2, the cue signal ENS1, the control signal CTR2, the off indication signal Y2, the cue signal ENS2 and the 5 volt voltage. The first to sixth and eleventh to thirteenth pins of the logic and gate wafer 32 are respectively floated unused, and the seventh to tenth and fourteenth pins are respectively connected to the ground, the control signal CTR3, the turn-off indication signal Y2, and the prompt signal. ENS3 with 5 volts.

4A to 4C, FIGS. 4A to 4C are partial circuit diagrams of the solenoid valve driving circuits of FIG. 1, respectively. The solenoid valve drive circuit 11 includes a transistor Q1 and resistors R13, R14. Similarly, the solenoid valve drive circuit 12 includes a transistor Q2 and resistors R15, R16, and the solenoid valve drive circuit 13 includes a transistor Q3 and resistors R17, R18. The transistors Q1 to Q3 are bipolar junction transistors (BJT), and the collectors of the transistors Q1 to Q3 receive the voltages P1 to P3 generated by the solenoid valve voltage VSOLENOID, respectively, and the gate terminals thereof receive the control signals CTR1 to CTR3. When the control signals CTR1 C CTR3 are logic low level signals, the transistors Q1 to Q3 are turned off to prevent excessive operating currents I1 to I3 from being generated. Please refer to FIG. 4D. FIG. 4D is a schematic diagram of a solenoid valve voltage supply module according to an embodiment of the present invention. The voltages P1 to P3 of FIGS. 4A to 4C can be generated by the solenoid valve voltage supply module 41. The solenoid valve voltage supply module 41 is a commercially available power connector that receives the solenoid valve voltage VSOLENOID and generates voltages P1 to P3.

Please refer to FIG. 5. FIG. 5 is a schematic diagram of a total power supply circuit according to an embodiment of the present invention. The total power supply circuit 19 includes transistors M1, M2, resistors R19, R20 and a capacitor C2, the transistor M1 is an N-type depletion MOSFET, and the transistor M2 is a P-type enhancement. Metal oxide semiconductor field effect transistor (P-type enhanced MOSFET). When the gate of the transistor M1 receives the total power-off control signal COM_OUT4 as a logic low-level signal, the transistor M1 and the transistor M2 are turned off. As such, the main power circuit 19 will no longer provide the motor voltage VMOTOR and the solenoid valve voltage VSOLENOID.

Please refer to FIG. 6. FIG. 6 is a schematic diagram of a multiple high voltage power component overcurrent protection device according to another embodiment of the present invention. The difference between the multiple high-voltage power component overcurrent protection device 6 and FIG. 1 is that the logic operation module 65 is implemented by using a plurality of logic or reverse gates NOR1 to NOR5 and the reverse gate INV1, so that it is used to disable the solenoid valve drive circuit 11~ The control signals CTR1 to CTR3 of 13 and the total power-off control signal COM_OUT4 for disabling the main power supply circuit 19 are high-level signals. Also, since the control signals CTR1 to CTR3 and the total power-off control signal COM_OUT4 are high-level signals, the corresponding component circuits can be disabled. Therefore, the positive input terminal and the negative input terminal of the comparators COM1 to COM4 of FIG. 4 and COM1 of FIG. The positive input and the negative input of COM4 will be opposite. For example, the positive input terminal and the negative output terminal of the comparator COM1 of FIG. 4 respectively receive the voltage V1 and the reference voltage VREF1. However, the positive input terminal and the negative output terminal of the comparator COM1 of FIG. 1 receive the reference voltage VREF1 and the voltage V1, respectively.

Next, please refer to FIG. 7. FIG. 7 is a flowchart of a method for protecting an overcurrent of multiple high voltage power components according to an embodiment of the present invention. In step S71, the operating current of the high voltage power element is detected. Then, in step S72, the voltage generated according to the operating current of the high voltage power element is compared with the reference voltage to produce a comparison result. Then, in step S73, a plurality of comparison results are logically operated to generate at least one control signal. Finally, in step S74, the high voltage power element is driven in accordance with the control signal.

In summary, the multiple high-voltage power component overcurrent protection device provided by the present invention and the method thereof can be used to close the driving circuit and the total power supply circuit in conjunction with the failure or abnormality of the high-voltage power component, or sequentially turn off part of the driving. The circuit and the total power circuit are used to achieve instant protection of the multi-function laser printer or transaction machine. In this way, the sheet metal of the high-voltage power component can be removed, and the manufacturing cost can be reduced.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

1‧‧‧Multiple high voltage power components overcurrent protection device

VDIV1~VDIV4‧‧‧reference voltage generator

11~13‧‧‧Solenoid valve drive circuit

14‧‧‧Comparative Module

15‧‧‧Logical Computing Module

16‧‧‧ Processor

17‧‧‧Display module

18‧‧‧Total power control module

19‧‧‧Total power circuit

21, 22‧‧‧ Comparator chip

31, 32‧‧‧Logic and gate wafer

41‧‧‧Solenoid valve voltage supply module

65‧‧‧Logical computing module

AND1~AND5‧‧‧Logic and Gate

C1, C2‧‧‧ capacitor

COM1~COM4‧‧‧ Comparator

DET1~DET3‧‧‧current detection circuit

NOR1~NOR5‧‧‧Logic or reverse gate

Q1~Q3‧‧‧Double carrier junction transistor

R1~R20‧‧‧ resistor

S1~S3‧‧‧ solenoid valve

S71~S74‧‧‧Step procedure

VINT‧‧‧ integrator

1 is a schematic diagram of an overcurrent protection device for multiple high voltage power components according to an embodiment of the present invention.

2 is a schematic diagram of an implementation of a comparison module according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of an implementation of a logic operation module according to an embodiment of the present invention.

4A to 4C are partial circuit diagrams of the solenoid valve driving circuits of Fig. 1, respectively.

4D is a schematic diagram of a solenoid valve voltage supply module according to an embodiment of the invention.

FIG. 5 is a schematic diagram of a total power supply circuit according to an embodiment of the present invention.

6 is a schematic diagram of a multiple high voltage power element overcurrent protection device according to another embodiment of the present invention.

FIG. 7 is a flow chart of a method for overcurrent protection of multiple high voltage power components according to an embodiment of the invention.

1. . . Multiple high voltage power component overcurrent protection device

VDIV1～VDIV4. . . Reference voltage generator

11~13. . . Solenoid valve drive circuit

14. . . Comparison module

15. . . Logical computing module

16. . . processor

17. . . Display module

18. . . Total power control module

19. . . Total power circuit

AND1~AND5. . . Logic and gate

C1. . . capacitance

COM1 ~ COM4. . . Comparators

DET1~DET3. . . Current detection circuit

R1 ~ R12. . . resistance

S1 ~ S3. . . The electromagnetic valve

VINT. . . Integrator

Claims (16)

A multi-high voltage power component overcurrent protection device includes: a comparison module, receiving a plurality of voltages generated by a plurality of operating currents of a plurality of high voltage power components, and respectively comparing the voltages with at least one reference voltage, To generate a plurality of comparison results, wherein the high voltage power components are a plurality of solenoid valves, a plurality of electronic clutches, or a combination thereof; and a logic operation module, receiving the comparison results, and generating at least one control according to the comparison results Signaling a plurality of high-voltage power component driving circuits, and the high-voltage power component driving circuits respectively drive the high-voltage power components according to the at least one control signal, wherein the high-voltage power component driving circuits receive the high-voltage power components for the high-voltage power components a high voltage power component voltage source, and generating a driving voltage or a driving current, wherein the high voltage power component driving circuit determines whether to provide the driving voltage or the driving current to drive the high voltage power components according to the at least one control signal . The multiple high voltage power component overcurrent protection device of claim 1, further comprising a total power control module, wherein the logic operation module further generates a total power control signal to the total power source according to the comparison results. a control module, and the total power control module generates a total power off control signal according to the total power control signal to a total power circuit, so that the total power circuit turns off the total power circuit according to the total power off control signal The high voltage power component voltage source. Multiple high-voltage power components as described in claim 2 An overcurrent protection device, wherein the total power control module comprises: an integrator, receiving the total power control signal, and generating an integrated voltage; and a comparator receiving a preset voltage and the integrated voltage, and comparing the integrated voltage And the preset voltage to generate the total power off control signal. The multi-high voltage power component overcurrent protection device of claim 2, further comprising a processor, wherein the logic operation module generates at least one shutdown indication signal according to the comparison results, the processor according to the at least one The off indication signal outputs at least one prompt signal to the logic operation module, and the logic operation module generates the at least one control signal according to the at least one off indication signal and the at least one prompt signal. The multiple high voltage power component overcurrent protection device of claim 4, further comprising a display module, wherein the processor generates an alert signal according to the at least one off indication signal, and the display module receives the alert signal And displaying an error state of the high voltage power components according to the warning signal. The multiple high voltage power component overcurrent protection device of claim 2, wherein the logic operation is performed when the voltage generated by the operating current of one of the high voltage power components is greater than the at least one reference voltage The module outputs the at least one control signal to turn off one, all or part of the high voltage power components, or the total power control module turns off the high voltage power component voltage source provided by the total power circuit. The multiple high voltage power component overcurrent protection device according to claim 1, wherein the logic operation module is configured by at least one logic gate composition. The multiple high voltage power component overcurrent protection device of claim 1, wherein the comparator module includes a plurality of comparators for comparing one of the plurality of voltages with the at least one reference voltage, And one of the comparison results is produced. The multiple high voltage power component overcurrent protection device of claim 1, wherein one of the voltages is generated by a current detector detecting the corresponding operating current. The multiple high voltage power component overcurrent protection device of claim 1, wherein the at least one reference voltage is generated by a reference voltage generator. A multiple high voltage power component overcurrent protection method includes: receiving a plurality of voltages generated by a plurality of operating currents of a plurality of high voltage power components, wherein the high voltage power components are a plurality of electromagnetic valves, a plurality of electronic clutches, or a combination thereof Comparing the voltages with the at least one reference voltage to generate a plurality of comparison results; performing at least one logic operation on the comparison results to generate at least one control signal to the plurality of high voltage power component driving circuits; The high-voltage power component driving circuit drives the high-voltage power components according to the at least one control signal, wherein the high-voltage power component driving circuits receive a high-voltage power component voltage source for the high-voltage power components, and generate a driving voltage or a drive current, The high voltage power component driving circuit determines whether to provide the driving voltage or the driving current to drive the high voltage power components according to the at least one control signal. The multiple high voltage power component overcurrent protection method of claim 11, further comprising: performing the at least one logic operation on the comparison results to generate a total power control signal to a total power control module; The total power control module generates a total power off control signal according to the total power control signal to a total power circuit, so that the total power circuit turns off the high voltage power component provided by the main power circuit according to the total power off control signal. power source. The multiple high voltage power component overcurrent protection method of claim 12, wherein the generating the total power shutdown control signal comprises: integrating the total power control signal to generate an integrated voltage; and comparing the integral The voltage is coupled to a predetermined voltage to generate the total power shutdown control signal. The multiple high voltage power component overcurrent protection method of claim 12, wherein the generating the at least one control signal comprises: performing the at least one logic function operation on the comparison results to generate at least one shutdown indication signal Giving a processor; generating at least one prompt signal according to the at least one shutdown indication signal; And performing the at least one logic function operation on the at least one shutdown indication signal and the at least one prompt signal to generate the at least one control signal. The multiple high voltage power component overcurrent protection method of claim 14, further comprising: performing the at least one logic function operation on the comparison results to generate a warning signal; and displaying the high voltage according to the warning signal The error state of the power component. The multiple high voltage power component overcurrent protection method according to claim 12, wherein the at least one of the voltages generated by the operating current of one of the high voltage power components is greater than the at least one reference voltage The control signal is used to turn off one, all or part of the high voltage power components, or the total power control module turns off the high voltage power component voltage source provided by the main power circuit.