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.

Date of Patent:
Dec. 03, 2013

Filed:

Jun. 15, 2010
Applicants:

Byung-hun Han, Seoul, KR;

Sung-jin Park, Seoul, KR;

Inventors:

Byung-hun Han, Seoul, KR;

Sung-jin Park, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a boosting voltage generating element used in a semiconductor integrated circuit, more particularly, is a charge pump. The charge pump includes a first converting unit and a second converting unit. The first converting unit is configured to receive a first voltage in response to a first clock signal to generate a first pumping voltage. The first converting unit is also configured to alternately output the first pumping voltage to a first terminal and a second terminal. The second converting unit is configured to receive the first pumping voltage through the first terminal or the second terminal in response to a second clock signal and a third clock signal respectively, to generate a second pumping voltage The second converting unit is also configured to provide the second pumping voltage to an output terminal. The second converting unit is configured to provide the second pumping voltage to the output terminal for at least half of a period of the second clock signal or the third clock signal.


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