System to vary capacitance based on a control signal

Details System to vary capacitance based on a control signal System to vary capacitance based on a control signal

2006-09-19

2006-09-19

Feild, Lynn (Department: 2835)

Electrical transmission or interconnection systems

Capacitor

Reexamination Certificate

active

07109607

ABSTRACT:
Some embodiments provide a plurality of capacitors coupled in parallel and a plurality of capacitor switches, each one of the capacitor switches coupled in series with a respective one of the plurality of capacitors. Also provided may be a plurality of control circuits, each of the plurality of control circuits coupled to a respective one of the plurality of capacitor switches, to generate a respective control voltage, and to independently set a respective one of the plurality of capacitor switches to the respective control voltage, and a plurality of control switches, each of the plurality of control switches to couple and to decouple a respective one of the plurality of control circuits to and from a control signal.

REFERENCES:
patent: 4259746 (1981-03-01), Sandstedt
patent: 5332997 (1994-07-01), Dingwall et al.
patent: 5600187 (1997-02-01), El-Hamamsy et al.
patent: 5960898 (1999-10-01), Okada et al.
patent: 6137372 (2000-10-01), Welland
patent: 6574288 (2003-06-01), Welland et al.
patent: 6882064 (2005-04-01), Glenn

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