本文在超声发生器中加入功率因数校正电路（APFC），并利用单片机控制数字电位器实现了对电压反馈网络的调节，从而实现APFC输出电压在一定范围内的自适应控制。
The self-adaptable control of output voltage could be realized under certain range by adding a APFC in ultrasonic generator and adjusting voltage feedback network with digital potentiometers.
本文在超声发生器中加入功率因数校正电路（APFC），并利用单片机控制数字电位器实现了对电压反馈网络的调节，从而实现APFC输出电压在一定范围内的自适应控制。
The self-adaptable control of output voltage could be realized under certain range by adding a APFC in ultrasonic generator and adjusting voltage feedback network with digital potentiometers.
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