Ultrasonic generator with a piezoelectric converter

Details Ultrasonic generator with a piezoelectric converter Ultrasonic generator with a piezoelectric converter

1990-07-16

1992-06-09

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310318, H01L 4108

Patent

active

051210231

ABSTRACT:
In an ultrasonic generator the driver circuit of a piezoelectric converter is provided with a switching regulator under control of a microcomputer, the pulse duty factor and frequency of the switching regulator being controlled in response to the converter's impedance which is detected by means of a measuring circuit.

REFERENCES:
patent: 3596206 (1971-07-01), Loria
patent: 4748365 (1988-05-01), Poupaert et al.
patent: 4868445 (1989-09-01), Wand
patent: 4879528 (1989-11-01), Gotanda
patent: 4901034 (1990-02-01), Frank-Peter
patent: 4914337 (1990-04-01), Takagi
patent: 4926084 (1990-05-01), Furutsu et al.
patent: 4965532 (1990-10-01), Sakurai
patent: 4966131 (1990-10-01), Houghton et al.

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