This product is a multi-functional power module, which combines thyristorpower 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. It has hand-control and automation control interfaces, no phase order requirements of the AC inputs. With built-in linear control circuit, it is highly precise and stabilized.