Is mainly used in dc motor, dc motor controller of electrolysis, electroplating, electric smelting, charging, the types of it has a lot of, let's to meet its type. 1. According to the structure division, can be divided into direct current motor and the dc generator controller; 2. According to the type, can be divided into a dc motor controller and the brushless dc motor controller; 3. Based on excitation method, can be divided into separately excited dc motor controller, shunt dc motor controller, series dc motor controller and compound dc motor controller. Dc motor controller sort is various, and each has its own advantages and application scope, the user is the choice can choose according to their own actual situation.