Charge pump DC/DC converter circuit

Details Charge pump DC/DC converter circuit Charge pump DC/DC converter circuit

2007-05-29

2007-05-29

Laxton, Gary L (Department: 2838)

Electric power conversion systems

Current conversion

With voltage multiplication means

C327S536000, C307S110000

Reexamination Certificate

active

11360484

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.

REFERENCES:
patent: 6556064 (2003-04-01), Yatabe
patent: 6738271 (2004-05-01), Umeda
patent: 6809433 (2004-10-01), Nozu
patent: 10-014218 (1998-01-01), None

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