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. 13, 2010
Filed:
Feb. 21, 2008
Applicants:
Kwan-jen Chu, HsinChu, TW;
Chien-ping LU, Tainan, TW;
Inventors:
Kwan-Jen Chu, HsinChu, TW;
Chien-Ping Lu, Tainan, TW;
Assignee:
Richtek Technology Corporation, HsinChu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention discloses a level shift circuit which comprises: an input driver circuit; a capacitor having a first end electrically connected with the output of the input driver circuit; an output driver circuit electrically connected with a second end of the capacitor; and a feedback latch circuit electrically connected between the output of the output driver circuit and the second end of the capacitor, for maintaining the voltage level at the second end of the capacitor.