Many of the PowrUps regens actually position the motor in the center of a full wave center tapped transformer bridge (not a DC H-bridge) so that as the motor loads vary, the motor's back EMF is easily and efficiently returned to the AC line and not left trapped in expensive DC switching elements or a DC power supply. This architecture thermally extends the life of the drive significantly, and permits instant motor reversal at any speed or load without the risk of damage to the drive's switching components. Where H-bridge switching elements must be verified off before reversing motor direction, thyristor elements self-protect and self commutate in an on-on state, making both instantaneous reverse and regenerative braking not only viable, but highly reliable.