高可靠性单相异步电机频繁高速启动触发电路

A High Reliability Trigger Circuit for Frequent and High-speed Start-up of Single Phase Inductive Motor (SPIM)

提出了一种新型低成本过零触发电路 ,用双向晶闸管代替离心开关 ,高可靠地控制单相异步电机启动电容的接入和断开 。

This paper presents a new zero cross trigger circuit with low cost, which adopts triac instead of centrifugal switch to control the SPIM starting capacitor connecting or disconnecting. A frequent and high speed starting properties with large torque are achieved.