The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 17, 2002

Filed:

Feb. 07, 2001
Applicant:
Inventors:

Nicholas Tyson Myers, Chandler, AZ (US);

James Dunbar Walker, Escondido, CA (US);

Assignee:

Unisys Corporation, Blue Bell, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 3/100 ; H01H 3/102 ;
U.S. Cl.
CPC ...
G01R 3/100 ; H01H 3/102 ;
Abstract

A power system includes an output voltage terminal that is coupled by a first conductor to one pressed power contact which is then coupled by a second conductor to an electronic device. Also, the electronic device is coupled by a third conductor to one pressed signal contact which is then coupled by a fourth conductor to an output voltage feedback terminal on the power supply. Further, the power system includes a fault detection circuit which is coupled to the fourth conductor. In operation, the fault detection circuit senses if the pressed signal contact is open at a time when the pressed signal contact is supposed to be closed. If an open contact is sensed, the fault detection circuit sends a signal to an operator which indicates that corrective action is needed.


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