Patent ID: 9136782
Filing Date: 2015-09-15
Classification: B60L,H02M,H02P,Y02T

Abstract:
1. An apparatus, comprising: a motor comprising windings; a switch bridge comprising a plurality of switches configured to couple a power source to the windings; a motor controller configured to control the plurality of switches; an undesired condition identifier configured to identify an undesired condition in the apparatus when the motor is providing power to the power source, wherein the undesired condition is identified when a voltage across the windings is greater than a first voltage threshold defined with respect to an output voltage of the power source, wherein the undesired condition is defined with respect to a characteristic of the power source; and an undesired condition reducer configured to reduce the undesired condition by directing a current in the windings to ground via a resistor in response to identifying the undesired condition in the apparatus by the undesired condition identifier.