The invention discloses an ultrasonic cleaning power
system which is used for controlling output power of an ultrasonic
transducer. The ultrasonic cleaning power
system comprises a network source
rectifier filter module, a
voltage-controlled oscillator, a
microcontroller, a PWM driving module, a
power inverter and a
transformer, wherein the network source
rectifier filter module is connected with the
power inverter, the
microcontroller is connected with the
power inverter through the PWM driving module, the power
inverter is connected with the ultrasonic
transducer through the
transformer, and the
voltage-controlled oscillator is connected with the
microcontroller. According to the ultrasonic cleaning power
system, ultrasonic frequency of the ultrasonic cleaning power system is directly output through the microcontroller, the phenomenon that an external
voltage-controlled oscillator directly outputs the ultrasonic frequency to cause frequency variations in the prior art is avoided, meanwhile,
power regulation of the ultrasonic
transducer is directly completed internally through the microcontroller, and a regulating circuit is not needed additionally. The circuit structure is simplified,
miniaturization requirements of electronic products are met, and competitiveness of the products on the market is improved.