DC motricium moderatoris in usu transiet super magnetificationem de operatione, ut melius perficientur. Sed aliqui repetita operam magnetimation processus, opus est. Infra parva faciunt ad introducendam. Propter diversas usus DC motricium moderatoris, ita diversa perficientur; And different performance depends on the internal structure of the electromagnetic motor controller parameters, in the aspect of magnetic parameters requires a different shape of air-gap magnetic field distribution, so as to improve the magnetic flux of large amount, make the electromagnetic moment of motor controller is larger. And little vibration, low noise, small spark, but in the output power and efficiency requirement is not high dc motor controller, the air-gap magnetic field distribution inside need to less than a third pole pitch flat wave or sine wave, to ensure the applicability of the motor controller. Supra est ad magnetizationem considerations DC motricium moderatoris introducit, intellegis?