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:
Jul. 29, 2014
Filed:
Jun. 17, 2011
Jeong MO Yang, Seoul, KR;
Chang Sik Yoo, Seoul, KR;
Yung Jin Moon, Gwangju, KR;
Yong Seong Roh, Incheon, KR;
Joong Ho Choi, Gyunggi-do, KR;
Jae Shin Lee, Gyunggi-do, KR;
Jung Chul Gong, Seoul, KR;
Yu Jin Jang, Gyunngi-do, KR;
Jeong Mo Yang, Seoul, KR;
Chang Sik Yoo, Seoul, KR;
Yung Jin Moon, Gwangju, KR;
Yong Seong Roh, Incheon, KR;
Joong Ho Choi, Gyunggi-do, KR;
Jae Shin Lee, Gyunggi-do, KR;
Jung Chul Gong, Seoul, KR;
Yu Jin Jang, Gyunngi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, KR;
University of Seoul Industry Cooperation Foundation, Seoul, KR;
Abstract
There is provided a power factor correction circuit capable of correcting a power factor of a power converting module through increasing an input current by switching a main switching element of a power converting module on the basis of a first reference wave having a slope based on a first signal and an error voltage, in particular, by limiting a switching frequency on the basis of a first reference wave having a slope based on a second signal lower than a first signal and an error voltage when the switching frequency of the main switching element increases because an input voltage of the power converting module is low.