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:
Dec. 05, 2017
Filed:
Jul. 06, 2016
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Karel Ptacek, Roznov Pod Radhostem, CZ;
Tomas Tichy, Jihlava, CZ;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
A synchronous rectifier controller includes an exception timer, one or more blanking timers, and control logic. The control logic may detect a beginning of a conduction phase using a current sense signal. In response to detecting the beginning of the conduction phase, the control logic commences the exception timer, commences a first blanking interval, and asserts the drive signal. In response to an OFF condition being detected, the first blanking interval being elapsed, and the exception timer being running, the control logic de-asserts the drive signal and commences a second blanking interval. In response to an ON condition being detected, the second blanking interval being elapsed, and the exception timer being running, the control logic commences a third blanking interval and asserts the drive signal. The control logic may assert and de-assert the drive signal multiple times while the exception timer is running.