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:
Sep. 29, 2020
Filed:
Sep. 11, 2018
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Gwanbon Koo, Sunnyvale, CA (US);
Youngbae Park, Taipei Zhongsan, TW;
Taesung Kim, Seoul, KR;
BongGeun Chung, Siheung-si, KR;
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Abstract
Reduced voltage switching of a main switch in flyback power converters. At least some example embodiments are methods including: storing energy in a field associated with a secondary winding of a transformer, the secondary winding arranged for flyback operation within a secondary circuit of the power converter; charging a capacitor coupled to an auxiliary winding of the transformer; discharging the energy in the field associated with the secondary winding to provide an output voltage of the power converter; and when the electrical current flowing through the secondary winding reaches a predetermined low level reducing voltage across a main switch in a primary circuit of the power converter by coupling the capacitor to the auxiliary winding to create a voltage on a primary winding of the transformer.