Single chip microcomputer controlled power grid detection and reset circuit
A single-chip microcomputer control and micro-control circuit technology, applied in data reset devices, electrical components, electronic switches, etc., can solve the problems of high production costs of components, complex structure of power grid detection and reset circuits, etc., and achieve simple structure and good timeliness , the effect of reducing the response time
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[0022] Reference figure 1 The circuit for detecting and resetting the power grid controlled by the single-chip microcomputer in this embodiment is arranged between the output terminal of the power supply circuit and the input terminal of the main control chip circuit, including the micro control circuit 1, the main control circuit 2, the triode circuit 3 and the external power connection Terminal 4: The PA1 detection port of the micro-control circuit 1 is connected to the 12V power supply through the main control circuit 2 to form a grid power-on / power-down detection structure. The PA4 of the micro-control circuit 1 is used as the output port to connect to the main control chip of the main control chip circuit through a resistor The output port of the micro-control circuit 1 PA0 is connected to the input terminal of the transistor circuit 3 to control the on / off of the transistor circuit. The output terminal of the transistor circuit 3 is connected to the power supply VDD, which...
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