Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Current driver
Patent
1994-12-21
1996-08-20
Heyman, John S.
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Current driver
359257, 372 10, 372 12, 372 27, H03K 300
Patent
active
055482341
ABSTRACT:
A two-step solid state optical switch system includes an electro-optical material positioned between a first electrode and a grounded second electrode. A voltage source is electrically connectable to the first electrode by an ON switch. When the ON switch is closed, a plurality of field effect transistors establish electrical contact between the voltage source and the first electrode to charge the first electrode and change the optical characteristics of the electro-optical material. An OFF switch, which is also electrically connectable to the first electrode, includes a plurality of field effect transistors, which establish electrical contact between ground and the first electrode when the OFF switch is closed. With the closing of the OFF switch, any voltage on the first electrode is removed to restore the optical characteristics of the electro-optical material. Electronic components of the system selectively activate the ON switch and the OFF switch in a sequence so that both switches are never simultaneously closed.
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Juhasz Tibor
Turi Laszlo
Ujazdowski Richard
Heyman John S.
Intelligent Surgical Lasers Inc.
Wells Kenneth B.
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