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:
Sep. 23, 2008
Filed:
Jul. 08, 2004
Pyung-moon Zhang, Gyeonggi-do, KR;
Seung-keun Lee, Gyeonggi-do, KR;
Pyung-Moon Zhang, Gyeonggi-do, KR;
Seung-Keun Lee, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
Disclosed is a charge pump circuit that operates responsive to a test or general operation mode. The charge pump circuit includes at least one charge pump part. A voltage level sensing block generates a level sensing signal by sensing an output voltage. An oscillator generates complementary pulse signals responsive to the level sensing signal. And a selecting circuit block generates a selected voltage that is one of a high voltage and a supply voltage to the at least one charge pump part, the high voltage having a level higher than the supply voltage.