Communications – electrical: acoustic wave systems and devices – Transmitter systems
Patent
1986-05-20
1989-09-05
Taroza, Thomas H.
Communications, electrical: acoustic wave systems and devices
Transmitter systems
310317, G10K 1100
Patent
active
048645478
ABSTRACT:
A regulated ultrasonic generator operable for supplying a driving signal to an ultrasonic transducer is disclosed. The generator includes: a power supply; a bridge inverter circuit for generating a power signal having two alternating components of opposite potential; a timing circuit for generating a timing signal equal in frequency to the desired frequency of the power signal; a bridge driver circuit for periodically generating base drive signals for switching on the bridge inverter circuit; a bridge modulating circuit for controlling the amount of time during each cycle that the bridge inverter circuit is on so as to regulate the power content of the power signal; and means for supplying the power signal to the ultrasonic transducer.
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Sun Luin Kuo, "Half-Bridge Transistor Inverter for DC Power Conversion," IEEE Transactions on Industrial Electronics and Control Instrumentation, IECI-21:4 (11/74).
Crestek, Inc.
Swann Tod
Taroza Thomas H.
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