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:
Feb. 10, 2009
Filed:
May. 17, 2007
Hung-che Chou, Jiadong Township, Pingtung County, TW;
Chao-hsuan Chuang, Chupei, TW;
Cheng-hsuan Fan, Hukou Township, TW;
Liang-pin Tai, Gueiren Township, Tainan County, TW;
Hung-Che Chou, Jiadong Township, Pingtung County, TW;
Chao-Hsuan Chuang, Chupei, TW;
Cheng-Hsuan Fan, Hukou Township, TW;
Liang-Pin Tai, Gueiren Township, Tainan County, TW;
Richtek Technology Corporation, Hsin-Chu, TW;
Abstract
The present invention discloses a charge pump start up circuit comprising: a start up transistor having one end which is electrically connected with a voltage supply source, and another end which is electrically connected to a voltage node; and a charge pump circuit having an input which is electrically connected with the voltage node, and an output which is electrically with the gate of the start up transistor.