Difference between PMBLDC Motor and PMS Motor:

The difference between PMBLDC Motor (Permanent Magnet Brushless DC Motor) and PMS Motor (Permanent Magnet synchronous Motor) is given in table below

Sl no PMBLDC Motor (Permanent Magnet Brushless DC Motor) PMS Motor (Permanent Magnet synchronous Motor)
1 Rectangular distribution of magnetic flux in the airgap. Sinusoidal or quasi-sinusoidal distribution of magnetic flux in the airgap.
2 Rectangular current waveforms. Sinusoidal or Quasi-sinusoidal current waveforms.
3 Concentrated stator winding. Quasi sinusoidal distribution of stator conductors and distributed or concentric stator winding.

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