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:
Jun. 16, 2015
Filed:
Dec. 28, 2012
Applicant:
Richtek Technology Corporation, Chupei, Hsinchu, TW;
Inventors:
Yen-Te Lee, Zhongpu Township, Chiayi County, TW;
Kuo-Chi Liu, Hsinchu, TW;
Wen-Wei Chen, New Taipei, TW;
Yi-Fan Chen, Taipei, TW;
Kuang-Feng Li, Yuanlin Township, Changhua County, TW;
Assignee:
Richtek Technology Corp., Chupei, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/16 (2006.01); H02M 7/06 (2006.01); H02M 1/44 (2007.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02H 7/16 (2013.01); H02M 7/06 (2013.01); H02M 1/44 (2013.01); H02M 2001/322 (2013.01);
Abstract
An independent bleeding integrated circuit device is provided to replace the bleeding resistor for an EMI filter capacitor, to establish a discharge path between the two terminals of the EMI filter capacitor when the EMI filter capacitor is disconnected from an AC power source, for discharging the EMI filter capacitor. When the EMI filter capacitor is connected with an AC power source, the discharge path is cut off to avoid power loss.