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:
Apr. 22, 2014
Filed:
Dec. 13, 2011
Moosung Kim, Yongin-si, KR;
Jaewoo Im, Hwaseong-si, KR;
Jae-duk Yu, Seoul, KR;
Kitae Park, Seongnam-si, KR;
Ohsuk Kwon, Seoul, KR;
Moosung Kim, Yongin-si, KR;
Jaewoo Im, Hwaseong-si, KR;
Jae-Duk Yu, Seoul, KR;
Kitae Park, Seongnam-si, KR;
Ohsuk Kwon, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A negative voltage generator includes a direct current voltage generator configured to generate a direct current voltage, a reference voltage generator configured to generate a reference voltage, an oscillator configured to generate an oscillation clock, a charge pump configured to generate a negative voltage in response to a pump clock, and a voltage detector. The voltage detector is configured to detect the negative voltage by comparing a division voltage, obtained by voltage dividing the direct current voltage, with the reference voltage, and to generate the pump clock corresponding to the detected negative voltage based on the oscillation clock.