Compact integrated circuit solutions for driving liquid...

Details Compact integrated circuit solutions for driving liquid... Compact integrated circuit solutions for driving liquid...

2011-03-01

2011-03-01

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

Reexamination Certificate

active

07898302

ABSTRACT:
Compact integrated circuit solutions for driving liquid lenses in autofocus applications. The invention uses a charge pump topology to produce high voltage, and needs only a low voltage external capacitor. No high voltage capacitor or inductor or transformer is used to provide the required high voltage or for smoothing the same.

REFERENCES:
patent: 4642490 (1987-02-01), Lawton
patent: 6710773 (2004-03-01), Jenkins et al.
patent: 2009/0110384 (2009-04-01), Lynch et al.
patent: 2009/0140795 (2009-06-01), Choy
“DrivIC 60 Series, DrivIC 60 LL3”,Rogers Corporation, Durel Division, www.varioptic.com.

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