Programmable digital frequency ultrasonic generator
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United States of America Patent
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-
Nov 3, 1998
Grant Date -
N/A
app pub date -
Feb 9, 1996
filing date -
Feb 9, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital programmable ultrasonic generator for driving an ultrasonic transducer includes a computer for receiving and storing a plurality of selectable programs. The programs are indicative of different modes of operation. A profile generator is coupled to the computer to receive programs and to produce a digital reference voltage indicative of a voltage profile to be generated for the mode selected. A digital frequency controller is coupled to a direct digital synthesizer for producing a predetermined frequency in response to a programmed frequency command from the computer. A process controller receives the output of the direct digital synthesizer as a voltage signal having the desired frequency and modifies the voltage depending on the mode of operation and voltage desired before driving a power amplifier coupled to the transducer to be driven.
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