Driver circuit for electrostatic transducers

Details Driver circuit for electrostatic transducers Driver circuit for electrostatic transducers

1978-05-15

1980-06-10

Stellar, George G.

179111R, H04R 1902, H04R 300

Patent

active

042074428

ABSTRACT:
A driver circuit for an electrostatic transducer which may have a flat or folded configuration. The transducer has a pair of rigid sound transparent stator plates spaced from each other and a flexible, conductive diaphragm disposed between the stator plates. A high voltage is impressed between the stator plates either by a voltage source or by electrets of opposite polarity on the stator plates. The audio signal is applied to the diaphragm through a transformer and a pair of rectifiers connected back to back. Hence, the audio signal is impressed on the diaphragm. The rectifiers are so poled that only a half cycle of the audio signal can be impressed on each of the stator plates. Alternatively, the stator plates are connected to a high voltage rectifier doubler circuit with multiple voltage taps.

REFERENCES:
patent: 3372245 (1968-03-01), Yoshida et al.
patent: 3668335 (1972-06-01), Beveridge
patent: 3821492 (1974-06-01), Tamura et al.
patent: 3894198 (1975-07-01), Murayama et al.

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