[Al Skierkiewicz]

Chris,
Again I ask you to consider that the diodes only conduct IF the EMF exceeds the battery voltage which is rare or when the inductive kick attempts to raise the voltage. I multiplied the jag by 10 only to allow the two graphs to appear on the same scale. The average current for both controllers will be far less except at 100% duty cycle when average and peak are approx. equal. If the diodes do not conduct there is no EMF induced current. The graph simply shows the calculated current through the motor due to the effects of the pulse width (calculated at and for the length of the pulse due to the duty cycle). You cannot see the voltage developed across the inductor but a current probe or other method of looking at current would demonstrate this phenomena.