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:
May. 08, 2018
Filed:
Jun. 24, 2016
Applicant:
Richtek Technology Corporation, Chupei, Hsinchu, TW;
Inventors:
Jiun-Hung Pan, Taipei, TW;
Chien-Fu Tang, Hsinchu, TW;
Jyun-Che Ho, Xikou Township, Chiayi County, TW;
Isaac Y. Chen, Jubei, TW;
Yu-Chang Chen, Jiji Township, Nantou County, TW;
Jung-Pei Cheng, Huatan Township, Changhua County, TW;
Assignee:
RICHTEK TECHNOLOGY CORPORATION, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 3/335 (2006.01); H02M 7/217 (2006.01); H02M 1/08 (2006.01); H02M 3/157 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 1/08 (2013.01); H02M 3/156 (2013.01); H02M 3/33515 (2013.01); H02M 7/217 (2013.01); H02M 3/157 (2013.01); H02M 3/33523 (2013.01); H02M 2001/0009 (2013.01);
Abstract
An AC-to-DC power converter with a BJT as a power switch can set a base current of the BJT by a current setting resistor which is in the outside of a control integrated circuit. Since an output current and a recovery current of the BJT are injected into a sensing resistor, the AC-to-DC power converter can correctly detect an inductor current thereof from the sensing resistor.