Batteryless power supply for transducers

Details Batteryless power supply for transducers Batteryless power supply for transducers

1992-03-26

1994-12-27

Kuntz, Curtis

Electrical audio signal processing systems and devices

Having microphone

381111, H04R 300

Patent

active

053772733

ABSTRACT:
A microphone power supply for use with precision microphones having an attached pre-amplifier, connects to an analyzer with a coaxial cable and is powered by an ICP current source in the analyzer. The power supply provides a polarization voltage and a pre-amplifier power voltage to a microphone and pre-amplifier assembly. The power supply receives an AC audio signal produced by the microphone, buffers the AC signal, and provides the AC signal to the analyzer through the coaxial cable.

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Hewlett Packard, Physical Sensors Catalog, 1990.
Wilcoxon Research, 720 Series Accelerometers, Product Data.
Bruel & Kjaer, Battery Driven Power Supply Type 2804, Instruction Manual, Sections 1, 2 and 3.
PCB Piezotronics, Inc., Quartz Sensors, Excerpts from catalog, pp. 2, 68, 139.

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