Pilot switch

Details Pilot switch Pilot switch

2011-01-04

2011-01-04

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

C361S002000, C361S008000

Reexamination Certificate

active

07864491

ABSTRACT:
Pilot switch circuitry coupled across first and second terminals of a microelectromechanical system (MEMS) switch is provided to reduce or eliminate arcing between a cantilever contact and a terminal contact when the MEMS switch is opened or closed. The pilot switch circuitry establishes a common potential at the first and second terminals prior to, and preferably until, the cantilever contact and terminal contact come into contact with one another when the MEMS switch is closed. The pilot switch circuitry may also establish a common potential at the first and second terminals prior to, and preferably after, the cantilever contact and terminal contact separate from one another when the MEMS switch is opened.

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patent: 6741435 (2004-05-01), Cleveland
patent: 7253709 (2007-08-01), Chang et al.
patent: 7653985 (2010-02-01), Chang et al.
patent: 2007/0188846 (2007-08-01), Slicker et al.

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