A program-controlled overcurrent protection circuit and its implementation method
An overcurrent protection circuit, overcurrent protection technology, applied in emergency protection circuit devices, protections that respond to overcurrent, circuit devices, etc., to achieve the effects of improving flexibility, high program control consistency, and improving accuracy
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[0038] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0039] Such as figure 1 The program-controlled overcurrent protection circuit shown includes a current detection operation circuit 1, an overcurrent programming operation circuit 2, a level comparison conversion circuit 3, a protection duration control circuit 4, a threshold setting control circuit 5, a protection trigger clearing circuit 6 and Protection shutdown reset circuit 7;
[0040] The current detection operation circuit 1 is configured to perform I-V conversion on the weak current detection signal and convert it into a voltage signal;
[0041] The overcurrent programming operation circuit 2 is configured to compare and operate the voltage signal and the overcurrent programming signal to obtain an overcurrent protection analog signal;
[0042] The level comparison conversion circuit 3 is configured to convert the over-current protectio...
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