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本文描述了用 TP-801单板机控制触发电路的三相桥式可逆变流传动装置的线路结构和工作原理,还给出了微机的工作流程图和程序表。用此电路代替模拟触发电路中的同步移相、脉冲形成和功率放大环节,起到根据速度给定信号改变晶闸管控制角的作用。
This paper describes the line structure and working principle of a three-phase bridge inverter with variable-current converter controlled by TP-801 single-board triggering circuit, and also gives the working flow chart and program list of the microcomputer. This circuit instead of analog trigger circuit in the synchronous phase shift, pulse shaping and power amplifier link, according to the speed of a given signal to change the role of the thyristor control angle.