The HPISE is a mini digital softstarter which has been specially designed for the single-phase or three-phase mouse-cage petty motors with the functions of flexible soft-start and soft-stop, adjustable time of soft-start and soft-stop and choice initial voltage grades of soft-start. It greatly moderates the shocks of engine torque and electrical current when the motors started, as a result, the motors and grid are kept in safety. It could be widely used in various control system of minitype motors such as air-con, refrigerator, freezer and pump, thereby the customers could debase the quality demand of grid, moderate overloaded grid and prolong the running life of appliances.