Constant current electrical circuit for driving piezoelectric tr

Details Constant current electrical circuit for driving piezoelectric tr Constant current electrical circuit for driving piezoelectric tr

1979-04-24

1981-03-17

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4108

Patent

active

042569877

ABSTRACT:
An electrical circuit for driving a piezoelectric transducer includes a DC electric source, a constant current circuit, connected to the DC electric source for processing a DC signal from the DC electric source and supplying a constant output current having a predetermined constant value, and an oscillation circuit connected to the constant current circuit for driving the piezoelectric transducer with a resonance frequency and with a constant current. The electrical circuit approximately drives the piezoelectric transducer with a constant current by supplying the constant current to the oscillation circuit.

REFERENCES:
patent: 3443130 (1969-05-01), Shoh
patent: 3526792 (1970-09-01), Shoh
patent: 4156157 (1979-05-01), Mabille

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