Network for use with piezoceramic transducer

Details Network for use with piezoceramic transducer Network for use with piezoceramic transducer

1983-05-16

1984-11-06

Rubinson, Gene Z.

Electrical audio signal processing systems and devices

Including frequency control

179110A, 333177, 381116, H04R 300

Patent

active

044816634

ABSTRACT:
A network for matching an electrical source of audio signals to a piezoceramic driver for a high frequency loudspeaker. The network consists of all of the elements of a bandpass filter network, but with the parallel combination of an inductor and a capacitor in the output stage of the filter replaced by an autotransformer or autoinductor which transforms the input impedance of the piezoceramic transducer into an equivalent parallel capacitance and resistance which, together with the inductance of the autotransformer, supply the load resistance for the filter and replace the capacitor and inductor omitted from the output stage of the bandpass network. An additional shunt resistor may be placed across the output of the autotransformer to obtain the desired effective load resistance at the input of the autotransformer.

REFERENCES:
patent: 1907723 (1933-05-01), Bostwick
patent: 3262075 (1966-07-01), Podell
patent: 4237340 (1980-12-01), Klipsch
H. Tremaine, Audio Cyclopeda, Mar. 1977, Howard W. Sams & Co., Inc., pp. 353 and 368.

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