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.:

US 8054658 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 08, 2011

Filed:

Oct. 06, 2008
Applicants:

Ming-cheng Chiu, Tainan County, TW;

Chin-feng Hsu, Tainan County, TW;

Inventors:

Ming-Cheng Chiu, Tainan County, TW;

Chin-Feng Hsu, Tainan County, TW;

Assignee:

Himax Technologies Limited, Fonghua Village, Xinshi Dist., Tainan, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/18 (2006.01); H02M 7/00 (2006.01); H02M 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A convertible charge-pump circuit includes: a charging circuit having a plurality of charging capacitors and a pumping circuit having an output port coupled to a pumping capacitor. The charging circuit is configured for charging the charging capacitors to store a plurality of potential differences, respectively, when the convertible charge-pump circuit is in a charging phase. The pumping circuit is configured for selecting at least one charging capacitor from the charging capacitors charged in the charging phase to generate an output voltage level at the output port according to a potential difference stored in the selected charging capacitor when the convertible charge-pump circuit is in a pumping phase.


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