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介绍了一种由ＳＧ３５２４开关稳压器组成的定频调宽可控硅调速系统的触发电路，并说明了该电路的工作原理。
A kind of trigger circuit composed of SG3524 switching regulator with constant frequency and widened thyristor speed control system is introduced and the working principle of the circuit is illustrated.