Abstract: The present invention discloses a level shift circuit which comprises: level shift means for receiving an input of a first operational voltage and generating an output of a second operational voltage; and a current path connecting with a source of the second operational voltage and providing current to the output of the level shift means to speed up output level switching. The circuit preferably further comprises a power consumption control circuit for stopping excess power consumption when the output of the level shift means has substantially accomplished level switching.
Type:
Grant
Filed:
August 2, 2006
Date of Patent:
June 3, 2008
Assignee:
Richtek Technology Company Ltd
Inventors:
Pao-Chuan Lin, Hung-Der Su, An-Tung Chen, Jing-Meng Liu