Circuitry for driving a non-linear transducer for ultrasonic cle

Details Circuitry for driving a non-linear transducer for ultrasonic cle Circuitry for driving a non-linear transducer for ultrasonic cle

1977-11-10

1979-02-27

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H01L 4110

Patent

active

041416082

ABSTRACT:
A circuit is disclosed for providing an 80 kilohertz sine wave to an ultrasonic transducer which includes an 80 kilohertz square wave generator driving a transistor having the primary of a transformer in its collector circuit. The secondary of the transformer drives a power transistor which has the transducer drive circuitry in its collector circuit. The transducer drive circuitry includes a transformer whose primary is connected in series with an inductor. The secondary of the transformer drives the transducer and has a capacitor connected thereacross. A third winding of the transformer is connected to have its output rectified to serve as a power supply for the square wave generator.

REFERENCES:
patent: 3318578 (1967-05-01), Branson
patent: 3432691 (1969-03-01), Shoh
patent: 3668486 (1972-06-01), Silver
patent: 3681626 (1972-08-01), Puskas
patent: 3736523 (1973-05-01), Puskas

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