一种新型晶闸管逆变定角触发控制电路的设计与实现

提出了一种采用波形变换及锁相的方法,产生晶闸管并联谐振逆变触发脉冲的电路,给出了具体电路框图及原理分析.并设计实现了此触发控制电路.实际应用和测试结果表明,由该电路产生的逆变触发脉冲的超前触发角度不随输出电压、负载及工作频率的变化而改变,并在一定范围内具有可调性.

Designing and Achieving About a New Type of Phase-locked Trigger Control Circuit for SCR Inverter

A circuit to produce phase-locked trigger pulse using waveform converting and phase-locked for SCR shunt-resonant inverter is proposed in this paper. The circuit composition is given and work principle of the circuit is analyzed. The trigger control circuit designed by this means have been achieved. The practice apply and experimental results demonstrate that the beforehand triggering angle of the triggering pulses produced by this circuit can not vary when the output voltage, load and operating frequency is varying ,and it can be adjusted in a scope.