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:
Apr. 28, 2015
Filed:
Feb. 08, 2013
Samsung Electro-mechanics Co., Ltd., Suwon, KR;
In Wha Jeong, Suwon, KR;
Kee Ju Um, Suwon, KR;
Bum Seok Suh, Suwon, KR;
Kwang Soo Kim, Suwon, KR;
Min Gyu Park, Suwon, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, KR;
Abstract
A power factor correction circuit may include a boost converter circuit in which a plurality of boost circuits including a boost inductor, a rectifying diode, and a boost switch are connected with each other; and a snubber circuit including a snubber inductor and a snubber switch so as to snubber the boost converter circuit. The snubber inductor may be controlled so as to be turned on before the boost inductor is turned on to apply zero voltage to the boost inductor. It is possible to reduce switching loss occurring when the boost switch is turned on and increase efficiency of an AC-DC power supply apparatus.