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:
Jul. 04, 2006
Filed:
May. 19, 2004
Applicant:
Ching-wei Lin, Taoyuan, TW;
Inventor:
Ching-Wei Lin, Taoyuan, TW;
Assignee:
Toppoly Optoelectronics Corp., Chu-Nan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A DC/DC conversion circuit for a display panel. The DC/DC conversion circuit converts an input voltage into a boosted voltage, in which first and second charge pump circuits are coupled to first and second clock signals respectively and output a boosted voltage to a load alternately. Under the control of the first and second clock signals, the first charge pump circuit outputs a first signal to disable the output of the second charge pump circuit or the second charge pump circuit output a second signal to disable the output of the first charge pump circuit.