Patent ID: 9099910
Filing Date: 2015-08-04
Classification: H02K,H02P

Abstract:
1. An apparatus comprising: a motor comprising: a processing device configured to determine a status of a first power source regarding present availability of electricity from the first power source; wherein without user interaction and based at least upon the status, the processing device is configured to select one of the first power source for application to the first commutator or a battery-based second power source for application to the second commutator; wherein the motor is configured to move the movable barrier at a first speed when powered by the first power source and to move the movable barrier at a second speed when powered by the second power source; wherein the second winding is one or more of smaller, shorter, less thick, and less heavy than the first winding such that the first speed is greater than the second speed and the second power source lasts for a longer duration than if it powered the motor using the first commutator and first winding.