给电机加一组辅助线圈，只在启动时工作，正常后它就断开。
Give motor electricity a circle assistant loop, and it works only when the motor starts and it will break up after the current goes regularly.
初级侧感测方法可藉由辅助线圈來达到输出电压或电流的控制。
PSS technique can be used for the output voltage or current regulation by employing an auxiliary winding.
将PTC热敏电阻串联在启动辅助线圈， 启动后PTC热敏电阻进入高阻态切断辅助线圈，正好可以达到这种效果。
This effect can be reached by connecting the PTC Thermistor in series in starting assistant loop and cutting off the assistant loop when PTCR enters the state of high resistance.
将PTC热敏电阻串联在启动辅助线圈， 启动后PTC热敏电阻进入高阻态切断辅助线圈，正好可以达到这种效果。
This effect can be reached by connecting the PTC Thermistor in series in starting assistant loop and cutting off the assistant loop when PTCR enters the state of high resistance.
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