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. 27, 2011
Filed:
Oct. 07, 2008
Byoung Woo Ryu, Suwon-si, KR;
Gun Woo Moon, Daejeon-si, KR;
Seong Wook Choi, Daejeon-si, KR;
Jong Sun Kim, Suwon-si, KR;
Dong Seong OH, Incheon-si, KR;
Byoung Woo Ryu, Suwon-si, KR;
Gun Woo Moon, Daejeon-si, KR;
Seong Wook Choi, Daejeon-si, KR;
Jong Sun Kim, Suwon-si, KR;
Dong Seong Oh, Incheon-si, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Abstract
An advantage of the present invention is to provide an adapter power supply which varies a link voltage of DC power serving an input power of a DC/DC converter according to variation of a load current estimated by measuring a secondary current using a lossless current measurement technique at a primary terminal of a transformer of the DC/DC converter and thus presuming a load current of an output power. An adapter power supply according to present invention may include an AC/DC converter converting a commercial AC power into a DC power; a DC/DC converter including a transformer composed of a primary terminal and a secondary terminal in order to output an output power by converting a link voltage of the DC power; and a controller presuming a load current of the output power through a primary current of the transformer and varying the link voltage of the DC power according to variation of the estimated load current.