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:
Feb. 21, 2012
Filed:
Oct. 19, 2009
Ki-seok OH, Uiwang-si, KR;
Young-sun Min, Seoul, KR;
Ki-Seok Oh, Uiwang-si, KR;
Young-Sun Min, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Abstract
An internal source voltage generating circuit includes a comparison voltage generator which receives reference and internal source voltages, outputs to a second node a comparison voltage differentially amplified responsive to a voltage of a first node according to a difference between the reference and internal source voltages, and allows a driving current to flow from a third node to a fourth node. An internal voltage driver transfers an external source voltage to an output node responsive to the comparison voltage. A driving current generator increases the driving current flowing from the third node to the fourth node responsive to the voltage of the first node which rises when the internal source voltage abruptly drops. The internal source voltage generating circuit is insensitive to variation of an external source voltage, exhibits improved response time when an internal source voltage abruptly drops, and stably generates an internal source voltage.