Power generator for a piezoelectric ultra-sonic transducer
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United States of America Patent
Stats
-
Dec 2, 1986
Issued Date -
N/A
app pub date -
Mar 12, 1986
filing date -
Sep 3, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power generator is provided to drive an high power ultrasonic transducer at its resonant frequency even under changing conditions cause by e.g. load fluctuations, aging or heating. The power generator uses a variable-controlled oscillator driving a power amplifier; a three winding transformer has one winding coupled to the transducer, one winding coupled to the output of the power amplifier and the third winding coupled to a phase measuring means. The output of the phase measuring means is fed back to the variable-controlled oscillator.
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