摘要
本文按块块分割方式介绍具体的超声波电源电路构成,并讨论这些电路的特点和应注意的事项。
<abstract>e composition Of electric circuit for concrete ultrasonic power supply is introduced separately block by block and its characteristics and cautions to be noted are also discussed here.
关键词
超声波发生器
电源电路
开关变换
PWM控制
频率自适应
<keyword>trasonic power supply, switch change-over, PWM control, frequency scanning, frequency skip, frequency adaptivity