Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hiroki Doi0
Kenji Kaishita0
Date of Patent
May 29, 2007
Patent Application Number
11360484
Date Filed
February 24, 2006
Patent Primary Examiner
Patent abstract
A charge pump DC/DC converter circuit of the present invention includes: a monitor circuit that detects a potential difference between terminals of a semiconductor switch that turns on during a first period, so as to output a determining signal corresponding to the potential difference; and each of drive circuits that outputs a drive signal to a semiconductor switch that turns on during a first period, in response to the determining signal. The drive signal increases the on-resistance of the semiconductor switch in proportion to the detected potential difference.
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