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:
Dec. 12, 2006
Filed:
Jul. 18, 2005
Liang-pin Tai, Chu-Pei, TW;
Chun-tsung Chen, Taipei, TW;
Chin-chiang Yeh, Kaohsiung Hsien, TW;
Po-shun Chung, Taichung Hsien, TW;
Kwan-jen Chu, Hsin-Chu, TW;
Chung-lung Pai, Hsin-Chu, TW;
Liang-Pin Tai, Chu-Pei, TW;
Chun-Tsung Chen, Taipei, TW;
Chin-Chiang Yeh, Kaohsiung Hsien, TW;
Po-Shun Chung, Taichung Hsien, TW;
Kwan-Jen Chu, Hsin-Chu, TW;
Chung-Lung Pai, Hsin-Chu, TW;
Richtek Technology Corp., Chupei, TW;
Abstract
A direct current voltage boosting/bucking device includes a direct current voltage boosting circuit and a low drop-out (LDO) linear voltage converting circuit. The direct current voltage boosting circuit boosts an input voltage so as to generate an output voltage higher than the input voltage. The LDO linear voltage converting circuit converts the output voltage into a load voltage that is to be provided to a load, and controls the direct current voltage boosting circuit in accordance with a feedback signal from the load such that the output voltage and the load voltage have a minimum drop-out voltage differential therebetween and such that current flow through the load is maintained at a determined level.