How to improve the efficiency of dc motor controller work

Dc motor controller is a kind of to be able to direct current (dc) motor controller can and mechanical energy transformation, are used in all walks of life, so how to improve the work efficiency in use? So the small make up to introduce below. 1. If there is a brush motor controller, the copper commutator into carbon commutator, can be to improve the work efficiency. 2. If is brushless motor controller, which can be laid hands on him from the rotor, with higher performance of permanent magnet materials. 3. Due to the runtime, ideally, counter electromotive force over zero phase current and zero phase coincidence, therefore, can improve the work efficiency by adjusting the control circuit. 4. In the case of constant voltage and load, can be diminished by each slot number of turns, and increase the wire diameter or and around the root of the number of ways, to improve the work efficiency. The above is the way to improve the efficiency of dc motor controller, hope to help you.