Improved charger output end overcurrent protection circuit
An overcurrent protection circuit and output terminal technology, applied in emergency protection circuit devices, protection against overcurrent, battery circuit devices, etc. problem, to achieve the effect of strong versatility and convenient use
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[0016] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.
[0017] See figure 1 As shown, it is an improved charger output overcurrent protection circuit, which includes a first operational amplifier 11, a delay module 2 connected to the + pin of the first operational amplifier 11, and a - pin of the first operational amplifier 11. The voltage divider module 3 connected to the pin, the second operational amplifier 12, the 2.5V reference voltage module 5 connected to the + pin of the second operational amplifier 12, the overcurrent detection module 6 connected to the - pin of the second operational amplifier 12 , the delay module 2 and the voltage divider module 3 are connected to the VDD power supply terminal 71 in the charger output terminal 7, the delay module 2 includes a charging capacitor C1, and the out pin of the first operational amplifier 11 is connected to the charger output terminal 7 The delay ...
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