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:
May. 13, 2014
Filed:
Apr. 20, 2010
Zhongyuan Wu, Suwon-si, KR;
Yoon Kyung Choi, Yongin-si, KR;
Zhongyuan Wu, Suwon-si, KR;
Yoon Kyung Choi, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A charge pump circuit configured to prevent latch-up is provided. The charge pump circuit includes a first transistor including a first bulk terminal, a first input terminal and a first output terminal, a first switching circuit connecting the first bulk terminal to one of the first input terminal and the first output terminal according to a voltage of the first input terminal and a voltage of the first output terminal, a first capacitor having a terminal connected to the first output terminal, and a second switching circuit connecting a second terminal of the first capacitor to the first input terminal or a ground in response to a plurality of clock signals.