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. 31, 2012
Filed:
Dec. 10, 2008
Jae Sun Won, Gyunggi-Do, KR;
Sung Soo Hong, Gyunggi-Do, KR;
Chung Wook Roh, Seoul, KR;
Sang Kyoo Han, Daejeon, KR;
Jong Sun Kim, Gyunggi-Do, KR;
Dong Seong OH, Incheon, KR;
Tae Won Heo, Gyunggi-Do, KR;
Dong Joong Kim, Gyunggi-Do, KR;
Don Sik Kim, Gyunggi-Do, KR;
Hak Ryong Kim, Gyunggi-Do, KR;
Jae Sun Won, Gyunggi-Do, KR;
Sung Soo Hong, Gyunggi-Do, KR;
Chung Wook Roh, Seoul, KR;
Sang Kyoo Han, Daejeon, KR;
Jong Sun Kim, Gyunggi-Do, KR;
Dong Seong Oh, Incheon, KR;
Tae Won Heo, Gyunggi-Do, KR;
Dong Joong Kim, Gyunggi-Do, KR;
Don Sik Kim, Gyunggi-Do, KR;
Hak Ryong Kim, Gyunggi-Do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
Abstract
There is provided a variable switching frequency type power supply that can achieve high efficiency by fixing a switching duty cycle to 50% and varying switching frequency. A variable switching frequency type power supply according to an aspect of the invention may include: a switching unit switching input power; a transformation unit converting a voltage level of the power switched by the switching unit into a predetermined voltage level; a rectification unit rectifying the power converted by the transformation unit; and a control unit fixing a switching duty cycle of the switching unit to a predetermined switching duty cycle, and varying switching frequency of the switching unit according to a voltage level of output power.