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:
Jan. 19, 1999
Filed:
May. 15, 1997
Applicant:
Inventor:
Ki-Jong Lee, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-City, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03L / ;
U.S. Cl.
CPC ...
327589 ; 327536 ; 327537 ; 307110 ; 363 59 ; 363 60 ;
Abstract
A charge pump circuit for generating an output voltage in response to a clock pulse is disclosed. The charge pump circuit has a switching node connected to a gate of a transistor which is connected between a high voltage output from a high voltage generator and the output voltage, a first path for providing a first coupling voltage to the switching node in response to the clock pulse and a second path for providing a second coupling voltage to the switching node in response to an inverse signal of the clock pulse. Each path includes a capacitor, where a capacitor in the first path has a coupling ratio greater than that of a capacitor of the second path.