Malfunction detecting circuit and malfunction detecting...

Details Malfunction detecting circuit and malfunction detecting... Malfunction detecting circuit and malfunction detecting...

2011-03-08

2011-03-08

Nguyen, Vincent Q (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S522000

Reexamination Certificate

active

07902833

ABSTRACT:
A malfunction detecting circuit for detecting malfunction of a current sensing resistor includes a reference-voltage generating circuit and a comparing circuit, wherein the reference-voltage generating circuit is utilized to generate a reference voltage signal varying with the on time period of a power switch of a power converting system. The comparing circuit compares a sensing voltage signal corresponding to a current flowing through the current sensing resistor with the reference voltage signal to generate a comparing result indicating whether the malfunction occurs.

REFERENCES:
patent: 2007/0127170 (2007-06-01), Park

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