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:
Mar. 02, 2004
Filed:
Sep. 17, 2002
Jae-Yoon Shim, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A high voltage generating circuit is described that includes, a control signal generating circuit for generating a first control signal in a first time period, and for generating second, third and fourth control signals in second, third and fourth time periods in this order; first, second and third pre-charge circuit for pre-charging first, second and third nodes in response to the first control signal; first and second step-up and charge transferring circuits for stepping up the first and third nodes in response to the second control signal and for performing a charge sharing operation between the first and second nodes and between the third and fourth nodes; a third step-up and charge transferring circuit for stepping up the second node in response to the third control signal and for performing a charge sharing operation between the second and fourth nodes; a pre-charge and charge supplying circuit for pre-charging the fourth node and for supplying charges to the fourth node; and a fourth step-up and charge transferring means for stepping up the fourth node in response to the fourth control signal and for transferring charges of the fourth node to a high voltage generating terminal.