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US 11,238,822 B2Granted
Drive circuit and drive system
AssigneesChongqing HKC Optoelectronics Co., Ltd., AG Technology Co., Ltd., Hkc Corporation Limited
InventorXiaoyu Huang
Life of this patent
Estimating the term…
Abstract
The present disclosure is related to a driver circuit, a preset protection value and a first voltage are input via a first circuit. A first switching circuit is electrically connected to the first circuit and a trigger circuit. A second switching circuit is electrically connected to a first voltage, and the trigger circuit is electrically connected to a printed circuit board.
Claims20
A driver circuit, comprising:
- a first circuit, wherein a preset protection value is inputted through a first input end of the first circuit, and a first voltage is inputted through a second input end of the first circuit;
- a first switching circuit, wherein a first input end of the first switching circuit is electrically connected to an output end of the first circuit, and a second input end of the first switching circuit is electrically connected to an output end of a power source;
- a trigger circuit, wherein a first input end of the trigger circuit is electrically connected to an output end of the power source, and a second input end of the trigger circuit is electrically connected to the output end of the first switching circuit;
- a second switching circuit, wherein a first input end of the second switching circuit is electrically connected to the first voltage, a second input end of the second switching circuit is electrically connected to an output end of the trigger circuit, and an output end of the second switching circuit is electrically connected to an output end of a printed circuit board;
- wherein the first circuit is configured to control the first switching circuit to be turned on and off, in response to detecting that the first circuit is turned on, the trigger circuit controls the second switching circuit to be turned off, and in response to detecting that the first switching circuit is turned off, the trigger circuit controls the second switching circuit to be turned on.
2 more elements
A driver circuit, comprising:
- a comparator, wherein a preset protection value is inputted through a first input end of the comparator, and a first voltage is inputted through a second input end of the comparator;
- a first switching transistor, wherein a first input end of the first switching transistor is electrically connected to an output end of comparator, and a second input end of the first switching transistor is electrically connected to an output end of a power source;
- a trigger circuit, wherein a first input end of the trigger circuit is electrically connected to an output end of the power source, and a second input end of the trigger circuit is electrically connected to the output end of the first switching transistor;
- a second switching transistor, wherein a first input end of the second switching transistor is electrically connected to the first voltage, a second input end of the second switching transistor is electrically connected to an output end of the trigger circuit, and an output end of the second switching transistor is electrically connected to an input a printed circuit board;
- wherein the comparator is configured to control the first switching transistor to be turned on and off, in response to detecting that the first transistor is turned on, the trigger circuit controls the second switching transistor to open, and in response to detecting that the first switching transistor is turned off, the trigger circuit controls the second switching transistor to close.
2 more elements
A driver system, comprising a driver circuit, wherein the driver circuit comprises:
- a first circuit, wherein a preset protection value is inputted through a first input end of the first circuit, and a first voltage is inputted through a second input end of the first circuit;
- a first switching circuit, wherein a first input end of the first switching circuit is electrically connected to an output end of the first circuit, and a second input end of the first switching circuit is electrically connected to an output end of a power source;
- a trigger circuit, wherein a first input end of the trigger circuit is electrically connected to an output end of the power source, and a second input end of the trigger circuit is electrically connected to the output end of the first switching circuit;
- a second switching circuit, wherein a first input end of the second switching circuit is electrically connected to the first voltage, a second input end of the second switching circuit is electrically connected to an output end of the trigger circuit, and an output end of the second switching circuit is electrically connected to an output end of a printed circuit board;
- wherein the first circuit is configured to control the first switching circuit to be turned on and off, in response to detecting that the first circuit is turned on, the trigger circuit controls the second switching circuit to open, and in response to detecting that the first switching circuit is turned off, the trigger circuit controls the second switching circuit to close.
2 more elements
Dependencies are inferred from the claim text.