### adaptive magnetic flux array motor

Posted:

**Wed, 15 Apr 2015, 18:22**unheardofinstruments wrote: The savings on part load are from being able to use a smaller number of the available coils at full power rather than running them all at fractional power thus improving efficiency at lower torque levels

But that's the exact opposite of reality. Torque is proportional to the sum of the currents but the full power losses are dominated by resistive loss which is proportional to the sum of the currents-squared. 1^2 + 1^2 is smaller than 2^2.