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.
Patent No.:
Date of Patent:
Feb. 01, 2005
Filed:
Nov. 22, 2000
Raymond Mathew Clemo, Raleigh, NC (US);
William Hemena, Raleigh, NC (US);
Eino Alfred Lindfors, Durham, NC (US);
Randhir Singh Malik, Cary, NC (US);
Raymond Mathew Clemo, Raleigh, NC (US);
William Hemena, Raleigh, NC (US);
Eino Alfred Lindfors, Durham, NC (US);
Randhir Singh Malik, Cary, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Aspects of a fail safe circuit for protecting power supply operation from a failure are described. The fail safe circuit shutdowns at least one power supply when a preset threshold is exceeded and resets to resume normal operation following a temporary fault condition. The fail safe circuit includes a switch coupled to a voltage signal line of a branch of a power supply system, a current sense resistor coupled to the switch for detecting a failure condition in the branch, and a latch coupled to the current sense resistor and the switch for turning the switch off during the failure condition.