Patent ID: 8830003

Claim:
An ultrasonic cleaning apparatus, comprising: a cleaning fluid for cleaning an object to be cleaned; an ultrasonic transducer for applying an ultrasonic vibration to the cleaning fluid; and an ultrasonic generator causing the ultrasonic transducer to oscillate a signal for ultrasonic vibration, wherein the ultrasonic generator comprises: a programmable multiple control circuit having a signal generation circuit for generating a signal, an output adjustment circuit for adjusting the output of the signal from the programmable multiple control circuit, a power supply circuit for supplying power to the signal output from the programmable multiple control circuit, a voltage detection circuit and a current detection circuit for detecting the voltage waveform and the current waveform of the signal output from the output adjustment circuit to the ultrasonic transducer, wherein the programmable multiple control circuit has a power control circuit, and the power control circuit detects a voltage effective value, a current effective value and a phase difference from the voltage waveform and the current waveform detected by the voltage detection circuit and the current detection circuit, compares the power presently being output with necessary power, and uses the comparison result to adjust the power supply output from the power supply circuit.