Integrated charge pump DC/DC conversion circuits using thin...

Details Integrated charge pump DC/DC conversion circuits using thin... Integrated charge pump DC/DC conversion circuits using thin...

2006-07-04

2006-07-04

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

With voltage multiplication means

Reexamination Certificate

active

07072193

ABSTRACT:
A DC/DC conversion circuit for a display panel. The DC/DC conversion circuit converts an input voltage into a boosted voltage, in which first and second charge pump circuits are coupled to first and second clock signals respectively and output a boosted voltage to a load alternately. Under the control of the first and second clock signals, the first charge pump circuit outputs a first signal to disable the output of the second charge pump circuit or the second charge pump circuit output a second signal to disable the output of the first charge pump circuit.

REFERENCES:
patent: 6373326 (2002-04-01), Tomari
patent: 6738271 (2004-05-01), Umeda

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