High voltage interface module

Details High voltage interface module High voltage interface module

2005-08-30

2005-08-30

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

For fault location

C324S537000

Reexamination Certificate

active

06937026

ABSTRACT:
The present invention provides a voltage conditioning interface module to condition an electrical signal locally. This module receives the unsafe electrical signal at an input port. This input port is electrically coupled to an external sampling point on an electrical circuit or system under test. A conditioning circuit having both a voltage reducing circuit and a voltage limiting circuit provides a reduced voltage. The voltage limiting circuit is in parallel with the output terminals that output the reduced voltage. This arrangement ensures that when a circuit element within the voltage reducing circuit fails, an unsafe condition does not exist across these terminals.

REFERENCES:
patent: 4099216 (1978-07-01), Weberg
patent: 4698740 (1987-10-01), Rodgers et al.
patent: 4835462 (1989-05-01), Konrad
patent: 5107202 (1992-04-01), Renda
patent: 5644215 (1997-07-01), Casper
patent: 55107132 (1980-06-01), None

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