Driving circuit for capacitive load

Details Driving circuit for capacitive load Driving circuit for capacitive load

2008-12-24

2010-10-05

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000, C327S423000, C327S588000

Reexamination Certificate

active

07808285

ABSTRACT:
A power switch assembly for a capacitive load10which includes a common electrode14and first and second discrete electrodes16, 18, includes a node n1coupled to a voltage source Vcc for receiving power there from, a first switching device connected between the node n1and ground, a second switching device connected between the node n1and ground, and a dividing circuit connected between the node and ground. The dividing circuit includes an output terminal connected to the common electrode14of the capacitive load. The first switching device is coupled to the first electrode16of the capacitive load configured to control movement of the capacitive load10in a first direction. The second switching device is coupled to the second electrode18of the capacitive load configured to control movement of the capacitive load10in a second direction reverse to the first direction.

REFERENCES:
patent: 6437964 (2002-08-01), Takamura et al.
patent: 6862009 (2005-03-01), Park
patent: 7170474 (2007-01-01), Lee et al.
patent: 7486286 (2009-02-01), Kim et al.

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