US 12,355,430 B2
High-power product switch protection system and high power product switch protection method
Li-Min Wang, Taichung (TW)
Assigned to STAR TECHNOLOGIES, INC., Hsinchu (TW)
Filed by STAR TECHNOLOGIES, INC., Hsinchu (TW)
Filed on Apr. 3, 2023, as Appl. No. 18/129,931.
Claims priority of application No. 111144090 (TW), filed on Nov. 18, 2022.
Prior Publication US 2024/0171172 A1, May 23, 2024
Int. Cl. H03K 17/08 (2006.01)
CPC H03K 17/08 (2013.01) 6 Claims
OG exemplary drawing
 
1. A switch protection system, comprising:
a switch configured to control a conductive state or a non-conductive state of a circuit;
a sensor assembly, wherein the sensor assembly is arranged between a power source and the switch, so as to sense a circuit signal value between the power source and the switch; and
a microcontroller, wherein the microcontroller is correspondingly connected to the switch and the sensor assembly so as to receive the circuit signal value;
a central processing unit configured to give a control instruction to the microcontroller, wherein the control instruction is configured to switch the conductive state and the non-conductive state of the switch,
wherein, when the microcontroller receives the control instruction from the central processing unit, the microcontroller compares the circuit signal value with a threshold value to determine whether or not to execute the control instruction,
wherein, when the circuit signal value is less than or equal to the threshold value, the microcontroller is configured to execute the control instruction,
wherein, when the circuit signal value is greater than the threshold value, the microcontroller is configured not to execute the control instruction,
wherein the microcontroller gives feedbacks of a result of the control instruction to the central processing unit after the microcontroller determines whether or not to execute the control instruction,
wherein, when the conduction instruction is not executed, the microcontroller is configured to wait for a next one of the control instruction to re-sense the circuit signal value directly, and the conduction instruction is executed until all sensing conditions are satisfied,
wherein the threshold value is a safety value that the switch withstands.
 
5. A switch protection method, comprising:
receiving a control instruction from a central processing unit by a microcontroller, the control instruction is configured to control a conductive state or a non-conductive state of a switch;
sensing a circuit signal value between a power source and the switch by a sensor assembly; and
comparing the circuit signal value with a threshold value so as to determine whether or not to execute the control instruction by the microcontroller;
wherein, when the circuit signal value is less than or equal to the threshold value, the control instruction is executed by the microcontroller,
wherein, when the circuit signal value is greater than the threshold value, the control instruction is not executed by the microcontroller,
wherein the microcontroller gives feedbacks of a result of the control instruction to the central processing unit after the microcontroller determines whether or not to execute the control instruction,
wherein, when the conduction instruction is not executed, the microcontroller is configured to wait for a next one of the control instruction to re-sense the circuit signal value directly, and the conduction instruction is executed until all sensing conditions are satisfied,
wherein the threshold value is a safety value that the switch withstands.