摘要
中频发电机用逆变电源将中频发电机发出的交流电转化成单相工频正弦交流电。采用晶闸管相控整流和单片机数字触发电路,对直流侧电压进行闭环控制;采用单相桥式SPWM型逆变电路得到正弦交流电。并介绍其主电路和控制电路原理。
An inverter can convert three phase AC power produced by intermediate frequen cy generator to single phase50Hz sinusoidal AC power.The inverter adopts phas e-controlled rectification and digital trigged circuit to control the DC voltag e by closed-loop method,uses single phase full bridge SPWM inverter to get the sinusoidal AC power.The principle of main circuit and control circuit is also discussed in this paper.
出处
《电焊机》
2004年第10期13-15,共3页
Electric Welding Machine
