Dc motor controller as one of the main types of motor controller. Can be used as a generator controller, can also be used as a motor. Below small make up to you to introduce the advantages and disadvantages of dc motor controller. 1. Has a good speed regulating performance, because of the dc motor controller voltage waveform is better, the electromagnetic interference is small. 2. But in many occasions used in high speed control performance requirement, because of its wide range of speed regulation, smooth speed regulation characteristics. 3. Has the larger starting and braking torque, because of its overload capacity is strong. 4. It make complex, high cost, because of commutator. The above is the strengths and weaknesses of the dc motor controller introduces, hope to help everyone.