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.

Date of Patent:
Feb. 23, 2016

Filed:

May. 10, 2013
Applicants:

Samsung Electro-mechanics Co., Ltd., Suwon, Gyunggi-do, KR;

University of Seoul Industry Cooperation Foundation, Seoul, KR;

Inventors:

Yu Jin Jang, Gyunggi-do, KR;

Hwan Cho, Gyunggi-do, KR;

Yong Seong Roh, Incheon, KR;

Young Jin Moon, Gwangju, KR;

Jeong Pyo Park, Gyeonggi-do, KR;

Joong Ho Choi, Gyeonggi-do, KR;

Jeong Mo Yang, Gyunggi-do, KR;

Chang Sik Yoo, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); H02M 1/14 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 1/4225 (2013.01); H02M 1/14 (2013.01); H02M 3/1584 (2013.01); H02M 2001/4291 (2013.01); H02M 2003/1586 (2013.01); Y02B 70/126 (2013.01);
Abstract

There are provided a phase shift circuit and a power factor correction circuit including the same. The phase shift circuit includes a switching circuit unit charging power in or discharging power from a capacitor through a plurality of switching devices and comparing a voltage of the capacitor with a predetermined reference voltage, and a clock generating unit generating a reference clock signal based on an output of the switching circuit unit, wherein the switching circuit unit turns the plurality of switching devices on or off, based on currents from inductors respectively included in a main circuit and a sub-circuit of a power factor correction circuit to determine a polarity of the voltage of the capacitor.


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