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:
Aug. 28, 2007
Filed:
Dec. 02, 2004
Vijay Gangadhar Phadke, Pasig, PH;
Arlaindo Vitug Asuncion, Paranaque, PH;
Richard Daniel Cabbab Caubang, Quezon, PH;
Vijay Gangadhar Phadke, Pasig, PH;
Arlaindo Vitug Asuncion, Paranaque, PH;
Richard Daniel Cabbab Caubang, Quezon, PH;
Astec International Limited, , CN;
Abstract
A circuit for controlling the operation of synchronous rectifiers. The circuit delays the turn-off of the synchronous rectifiers in accordance with the load current. The magnitude of the load current is examined to determine which of a plurality of delay elements is selected to delay turn-off of the synchronous rectifiers. Delay is accomplished by holding up for a predetermined time period one of a plurality of control signals utilized to determine when the synchronous rectifier should be turned-off.