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:
Oct. 19, 2021
Filed:
Sep. 17, 2020
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Dhruv Chopra, Gilbert, AZ (US);
Tomas Tichy, Roznov pod Radhostem, CZ;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
Synchronous rectification in active clamp flyback power converters. At least some example embodiments are methods including: sensing a first slope of voltage on a secondary winding of the transformer, the first slope indicative of the power converter entering a charge mode of the transformer; modifying, responsive the sensing, an operational state of a secondary rectifier (SR), driver coupled to a secondary rectifier; making the secondary rectifier conductive by the SR driver during a discharge mode of the transformer; sensing a second slope of voltage on the secondary of the transformer, the second slope indicative of ending of the discharge mode of the power converter; and then returning, responsive to sensing the second slope, the SR driver to an original operational state.