Overcurrent detection circuit

Details Overcurrent detection circuit Overcurrent detection circuit

1998-08-05

2000-07-25

Le, Dinh T.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327540, 327513, 361103, G01R 1900

Patent

active

060940921

ABSTRACT:
An overcurrent detection circuit comprises: a switch provided between a power supply and a load for switching connection on/off between the power supply and the load; a current detector for detecting a load current flowing in the load; a reference value generator which outputs a reference value of a predetermined first level at the ON-time of the switch means and reduces the level of the reference value with passage of time from the ON-time so as to converge the level of the reference value to a predetermined second level; and an overcurrent signal generator which compares the detected load current with the reference value and outputs an overcurrent signal when the load current reaches or exceeds the reference value.

REFERENCES:
patent: 5898557 (1999-04-01), Baba et al.

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