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:
Apr. 15, 2014
Filed:
Jan. 04, 2011
Applicants:
Tsung-hsi Yang, Xinbei, TW;
Shao-hung LU, Taoyuan County, TW;
Isaac Y. Chen, Hsinchu County, TW;
Wei-haur Chan, Hsinchu County, TW;
Inventors:
Tsung-Hsi Yang, Xinbei, TW;
Shao-Hung Lu, Taoyuan County, TW;
Isaac Y. Chen, Hsinchu County, TW;
Wei-Haur Chan, Hsinchu County, TW;
Assignee:
Richtek Technology Corp., Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01); G05F 1/565 (2006.01); G05F 1/618 (2006.01); G05F 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An adjustable driver voltage source for a switching power supply uses a linear regulator to provide a driver voltage, and a modulator to adjust the driver voltage according to the loading change of the switching power supply. The modulator may lower the driver voltage at light load to reduce the switching loss and thereby increase the power efficiency of the switching power supply.