The ultrasonic generator can control the power of the cleaning machine through bidirectional silicon controlled rectifier. The inverter module is a half bridge inverter, which inverts the DC voltage into high-frequency AC voltage, and then through tuning and matching, it can be matched with the transformer boost and inductance of the impedance matching module, and can be transmitted to the piezoelectric transducer with high efficiency and maximum power. Finally, the piezoelectric transducer converts the electrical energy output by the ultrasonic power supply into high-frequency mechanical vibration.

The matching between ultrasonic power supply and transducer is mainly tuning matching and impedance matching. In tuning and matching, in order to reduce the reactive power loss caused by electrostatic impedance and maximize the output power of piezoelectric transducer, it is necessary to make the transducer approximate to the state of pure resistance through matching to improve the output efficiency of ultrasonic power supply. In addition, if the tuning matching is completed, that is, when the load is in the pure resistance state, in order to achieve the maximum power output of the power supply, it is necessary to make the optimal output impedance of the actual load and the power supply equal. The realization method is to transform the impedance of the transducer into the optimal output impedance of the ultrasonic power supply through a high-frequency transformer, so that the piezoelectric transducer can output the maximum power.

20khz Ultrasonic Signal Generator of cleaning Gear/Crankshaft/Gearbox and Compressor and Spinneret