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. 19, 2016
Filed:
Aug. 06, 2012
Applicants:
Liang'an GE, Hangzhou, CN;
Xiaoli Yao, Hangzhou, CN;
Inventors:
Liang'an Ge, Hangzhou, CN;
Xiaoli Yao, Hangzhou, CN;
Assignee:
INVENTRONICS (HANGZHOU), INC., Hangzhou, Zhejiang, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); H02M 7/217 (2006.01); H05B 33/08 (2006.01); H02M 3/07 (2006.01);
U.S. Cl.
CPC ...
H02M 1/4208 (2013.01); H02M 7/2176 (2013.01); H05B 33/0815 (2013.01); H05B 33/0848 (2013.01); H02M 3/07 (2013.01); Y02B 20/347 (2013.01); Y02B 70/126 (2013.01);
Abstract
A constant current control circuit with PFC function and its PFC circuit are provided. The PFC circuit comprises a valley-filled PFC circuit and a harmonic compensation circuit, whose output signal is supplied to the current control circuit. By adding the harmonic compensation circuit to the PFC circuit, the distortion of input current is decreased and the power factor is enhanced. Moreover, the whole circuit is simplified and its cost is reduced.