Electret microphone circuit

Details Electret microphone circuit Electret microphone circuit

1980-05-05

1982-11-30

Stellar, George G.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

179 1A, 307400, H04R 300, H04R 1904

Patent

active

043617352

ABSTRACT:
An electroacoustic transducer for a microphone comprises an electret wherein an additional capacitance substantially greater than the capacitance normally inherent in the electret is connected in parallel with the electret. The additional capacitance may be of the order of 10 times greater than the capacitance normally inherent in the electret and may be produced inherently in the transducer or by a separate component connected to the transducer.

REFERENCES:
patent: 1027494 (1912-05-01), McMeen
patent: 2755796 (1956-07-01), Boucke
patent: 3373251 (1968-03-01), Seeler
patent: 3991285 (1976-11-01), van den Worm et al.

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