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:
Apr. 06, 2010
Filed:
Mar. 29, 2007
Jack Lavier, Ft. Collins, CO (US);
Samuel M. Babb, Ft. Collins, CO (US);
Kelly Jean Pracht, Ft. Collins, CO (US);
Jack Lavier, Ft. Collins, CO (US);
Samuel M. Babb, Ft. Collins, CO (US);
Kelly Jean Pracht, Ft. Collins, CO (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A control logic detects voltage regulator failure in a power supply. The control logic comprises first and second lines configured for respective connection to a controller node and a phase node of a voltage regulator, a delay element coupled to the first line configured to delay signals at the controller node into alignment with signals at the phase node, and a level detector coupled to the second line configured to convert the signals at the phase node into at least two digital representations indicative of respective signal thresholds. A logic compares timing of the delayed signals with the digital representations and detects occurrence of a voltage regulator fault based on the timing comparison.