By motor, controller is classified into brush controller and brushless controller. Brushless controller can be classified into 120° and 60° brushless controller and sensorless brushless controller.
By working voltage, controller is usually classified into 24 V, 36 V, 48 V controllers.
By rated power, controller is usually classified into 150W, 250W, 350W, 500W controllers.
By control technique, controller is usually classified to square wave, sinus wave controllers.