Intelligent Power Module is a multi-functional power module, which combines thyristor power circuit, phase-shift and trigger circuit. It is a integrated electricity phase-shift and open-loop system. It can realize the voltage control of the load. With built-in linear control circuit, it is highly precise and stabilized. It is widely used the fields such as speed modulation of DC motor, industrial automation, electric heating control, mechanical and electrical integration, diversified power supplies.