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:
Jan. 29, 2013
Filed:
Sep. 30, 2009
Gun Woo Moon, Daejeon-si, KR;
Byeong Woo Ryu, Suwon-si, KR;
Seong Wook Choi, Daejeon-si, KR;
Bong Chul Kim, Incheon-si, KR;
Dong Seong OH, Incheon-si, KR;
Gun Woo Moon, Daejeon-si, KR;
Byeong Woo Ryu, Suwon-si, KR;
Seong Wook Choi, Daejeon-si, KR;
Bong Chul Kim, Incheon-si, KR;
Dong Seong Oh, Incheon-si, KR;
Samsung Electro-Mechanics Co. Ltd., Gyunggi-Do, KR;
Abstract
The present invention relates to an adapter power supply, which includes a switching unit for switching a DC voltage; a transformer which has a primary winding connected to the switching unit, a secondary winding electromagnetically coupled to the primary winding, and an auxiliary winding electromagnetically coupled to the primary winding; a rectifier for rectifying a voltage outputted from the transformer; and a controller for controlling the switching unit to operate according to the PWM scheme in a normal operation mode, and to operate according to a quasi-resonant scheme in a standby mode, by detecting information of a load connected to the rectifier.