Drive circuit for an ultrasonic generator system

Details Drive circuit for an ultrasonic generator system Drive circuit for an ultrasonic generator system

1984-12-17

1986-05-13

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310 26, 310317, 318116, 318118, H01L 4108

Patent

active

045889171

ABSTRACT:
An ultrasonic generator system comprising a power oscillator which provides an A.C. signal for driving one or more ultrasonic transducers (TDM). The power oscillator includes a transistor (Tr.sub.1) in series wtih the parallel combination (for A.C. purposes) of a capacitor (C.sub.1) and an inductance (L.sub.1). The transducer load TDM is connected across the inductance L.sub.1 without the use of an intermediate transformer.

REFERENCES:
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patent: 3596206 (1971-07-01), Loria
patent: 3638087 (1972-01-01), Ratcliff
patent: 3651352 (1972-03-01), Puskas
patent: 3866068 (1975-02-01), Krenicki et al.
patent: 4318164 (1982-03-01), Onodera et al.
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patent: 4389601 (1983-06-01), Sullivan
patent: 4431975 (1984-02-01), Podlesny
patent: 4469974 (1984-09-01), Speranza
Sokal et al., "Class E-A New Class of High-Efficiency Tuned Single-Ended Switching Power Amplifiers", IEEE Journal of Solid-State Circuits, vol. SC-10, No. 3, Jun., 1975, pp. 168-176.

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