AN2372

Conclusion

9/13

3

Conclusion

A control implementation on a PMSM motor as described in this document was

implemented using ST7FMC and the performance was found to be satisfactory. Noise was

drastically lower. At high speeds, power consumption of a sinusoidal drive was marginally

lower than with traditional style control as with a BLDC motor. A fair comparison between

the efficiencies of these schemes is not trivial as it involves various factors such as inverter

switching frequency, inverter voltage drop, transient behavior of power switches in the

inverter, motor currents and its winding resistance.