Overcurrent limiting controller

Details Overcurrent limiting controller Overcurrent limiting controller

2007-07-17

2007-07-17

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S427000, C327S434000, C327S435000, C327S538000, C327S541000

Reexamination Certificate

active

11185752

ABSTRACT:
A semiconductor device controller includes a current supply control unit for controlling a conduction state of a semiconductor device connected to a load in response to a control signal to supply current to the load, a current level judging unit for comparing one or more switching judgment values set in an area smaller than an overcurrent judgment value with current detected by a current detecting unit to carry out a current level judgment and a time constant changing unit for changing the circuit time constant of the input signal processing circuit in accordance with a judgment result by the current level judging unit.

REFERENCES:
patent: 4367722 (1983-01-01), Mizuno
patent: 7038415 (2006-05-01), Nakamura et al.
patent: A-2001-45790 (2003-06-01), None

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