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本文介绍了一种用于超声波电火花复合加工的超声电发生器，它以功率VMOS场效应管作为开关元件，以单片集成电路TL494作为信号源的控制核心．发生器具有工作稳定可靠、重量轻的特点．
In this paper, an ultrasonic generator for ultrasonic EDM is introduced, which uses the power VMOS FET as the switching element and the monolithic integrated circuit TL494 as the control core of the signal source. The generator has the characteristics of stable and reliable work and light weight.