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. 15, 2011
Filed:
Jul. 21, 2008
Noel B. Dequina, Flemington, NJ (US);
Noel B. Dequina, Flemington, NJ (US);
Intersil Americas Inc., Milpitas, CA (US);
Abstract
A method of operating a synchronous power converter generates a control signal in a load current compensation circuit based on a light load condition at the converter, where the control signal controls a gate driver for at least one power switch of the converter. When the gate driver is turned off via the control signal, the method monitors one or more comparison signals in a reference voltage adjustment module of the compensation circuit, a first comparison signal of the one or more comparison signals indicative of a voltage level at a phase node of the converter. Based on a remaining body diode conduction level associated a body diode with the at least one power switch as detected by at least a second comparison signal, the method adjusts a reference voltage for the at least one power switch with the adjustment module until the body diode is no longer conducting.