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. 05, 2006
Filed:
Dec. 09, 2003
Seung-hoon Lee, Kyungki-do, KR;
Jae-yoon Sim, Kyungki-do, KR;
Seung-Hoon Lee, Kyungki-do, KR;
Jae-Yoon Sim, Kyungki-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A voltage boosting circuit and a method of generating a boosting voltage alleviate deterioration of a driver transistor caused by high voltage stress when the level of an external supply voltage is high. The voltage boosting circuit includes boosting capacitors and switches. The boosting capacitors include a first boosting capacitor connected to a driving node and a last boosting capacitor that outputs the boosting voltage. The switches connect the boosting capacitors in series in response to a control signal. The boosting voltage increases or decreases as the voltage level at the driving node changes according to the logic state of a boosting level control signal. The boosting level control signal is responsive to the external supply voltage level. An external supply voltage detector detects the level of external supply voltage level and generates the boosting level control signal.