Elevator door motors are electronically commutated torque motors that usually drive a belt and rotate at only a few revolutions per second. The difficult aspect is driving them accurately at such low speeds. Our drivers can control the absolute position and still rotate as low as 1 revolution every 10 seconds ( 0.1 rev/sec). In some cases, we have been able to double the power of a motor within the same housing: or fully integrate the electronic driver within the housing along with the motor.