Automatic regulation of power delivered by ultrasonic transducer

Details Automatic regulation of power delivered by ultrasonic transducer Automatic regulation of power delivered by ultrasonic transducer

1998-01-29

1999-03-09

Berhane, Adolf Deneke

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

156 731, 2281101, G05F 156, B32B 3118, B23K 106

Patent

active

058805800

ABSTRACT:
An ultrasonic generator has an output circuit for delivering ultrasonic power to a load through a transducer, the generator having an amplitude control input coupled to the output of a comparator, the inputs of which are coupled to a user interface circuit. The output circuit produces voltage and current signals which are applied to a multiplier in the interface circuit, which produces a power signal applied to an error input of the comparator, the interface circuit also having a signal processor which receives a user-input reference and applies it to a reference input of the comparator. The output of the comparator regulates the power output of the generator to the reference level, and is also coupled to an indicator circuit for providing an visual indication of whether or not the apparatus is in regulation.

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