Universal acoustic power amplifier

Details Universal acoustic power amplifier Universal acoustic power amplifier

1996-06-07

1998-06-23

Cunningham, Terry

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

327114, 327172, 327175, 327355, H03B 1900

Patent

active

057709610

ABSTRACT:
Disclosed are method and apparatus for producing electric waveform driver signals for exciting acoustic emitters such as foghorns, wherein the frequency and amplitude of the signals are readily variable to match the input requirements of the respective drivers of the acoustic devices. In disclosed embodiments of a signal generator according to the present invention a coupling circuit outputs the driver signal through an array of field-effect transistors.

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patent: 4754416 (1988-06-01), Adams et al.
patent: 5136192 (1992-08-01), Kooijman
patent: 5291081 (1994-03-01), Takeuchi et al.
patent: 5502411 (1996-03-01), Matsuki et al.
patent: 5661424 (1997-08-01), Tang

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