The figure 2 shows the star-star connection of said autotransformer. In case of delta-delta ... Thus, a 3 phase autotransformer enhances the voltage when the motor is switched on.

This reference design is a typical connection for MC34937APEK to a 3-phase brushless DC motor. The supply of a motor is a DC source, which has been controlled by the MOSFETs. The MOSFETs function as ...