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. 23, 2006
Filed:
Dec. 24, 2003
Jian-rong Huang, Hsinchu, TW;
Liang-pin Tai, Tainan, TW;
Hung-i Wang, Changhua, TW;
Chung-lung Pai, Taipei, TW;
Jing-mong Liu, Hsinchu, TW;
Jian-Rong Huang, Hsinchu, TW;
Liang-Pin Tai, Tainan, TW;
Hung-I Wang, Changhua, TW;
Chung-Lung Pai, Taipei, TW;
Jing-Mong Liu, Hsinchu, TW;
Richtek Technology Corp., Hsinchu, TW;
Abstract
A switching mode voltage regulator comprises a pulse width modulator and an adjustable one-shot circuit to generate an adjustable signal based on an input voltage, an adjustable voltage, and a PWM signal from the pulse width modulator at light loading to switch a high-side switch of an output stage in the voltage regulator. The ON duty of the adjustable signal is controlled by the adjustable voltage, such that it will be larger than that of the PWM signal and as a result, the number of switching the switch of the output stage is decreased, thereby reducing the switching loss and improving the efficiency of the voltage regulator.