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:
Nov. 16, 2010
Filed:
Aug. 02, 2007
Kuo-ping Liu, Hsinchu, TW;
Ko-cheng Wang, Puli Township, Nantou County, TW;
Liang-pin Tai, Tainan, TW;
Chung-sheng Cheng, Jhubei, TW;
Kuo-Ping Liu, Hsinchu, TW;
Ko-Cheng Wang, Puli Township, Nantou County, TW;
Liang-Pin Tai, Tainan, TW;
Chung-Sheng Cheng, Jhubei, TW;
Richtek Technology Corp., Hsinchu, TW;
Abstract
A control circuit provides a control signal for a constant on-time PWM switching converter to produce an output voltage, such that the converter operates with a constant on-time at a first state and operates with a variable on-time at a second state, so as to decrease the switching frequency and thereby the switching loss, to increase the efficiency of the converter, to improve the transient response, and to reduce the recovery time of the output voltage.