Anti-flowing backwards protection circuit
A protection circuit and anti-backflow technology, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of difficult heat dissipation and high power consumption
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[0017] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
[0018] refer to figure 2 , the anti-backfeed protection circuit 200 provided by the present invention is electrically connected between an input circuit 100 and an output circuit 300 . The anti-backfeed protection circuit 200 includes: a reference voltage supply circuit 210 , a voltage comparison circuit 220 and an anti-backfeed control circuit 230 . The voltage comparison circuit 220 includes a current detection resistor. The output end of the reference voltage supply circuit 210 is connected to the first input end of the voltage comparison circuit 220 . The negative pole of the input circuit 100 is connected to the negative pole of the output circuit 300 via the current detection resistor, and a feedback voltage formed on the current detection resistor acts on the second input terminal of the voltage compariso...
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