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Ultrasonic Transducer Control Method by mohas is a document available to read on EtoBox.

This patent describes a method and apparatus for controlling an ultrasonic transducer to maximize efficiency. It dynamically sweeps the output frequency range to locate the peak load current, which corresponds to the resonance frequency. This resonance frequency is used as a reference frequency in a control loop. The control loop includes a voltage-controlled oscillator controlled by a loop controller to lock onto and maintain the dynamically sensed resonance frequency. A pulse-width modulator then drives s

Author

mohas

Language

EN