Voltage and mechanically variable trimmer capacitor

Details Voltage and mechanically variable trimmer capacitor Voltage and mechanically variable trimmer capacitor

1983-06-13

1984-12-25

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

361293, H01G 700, H01G 506

Patent

active

044907729

ABSTRACT:
A variable capacitor which is both mechanically and electrically tunable includes a mechanically operable rotor/stator capacitor combination; and either the rotor or stator portion of the capacitor comprises a piezoelectric assembly which becomes dished in response to a voltage applied thereto, resulting in an air gap being created between the rotor and stator elements, thus effecting a variable capacitance as a result of the voltage application.

REFERENCES:
patent: 3170099 (1965-02-01), Sperry et al.
patent: 3656033 (1972-04-01), Nikles et al.
patent: 4056842 (1977-11-01), Sienicki et al.
Electronic Industries, Jul. 1958, A Voltage Variable Capacitor, pp. 77 to 80.

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