Regal Beloit America, Inc.

Donn Edward Steffen

Kamron Mark Wright

Paul Nathanael Selking

Philip Wayne Johnson

David Michael Pierre

Wei Song

An electric machine includes a motor having a motor chassis having a first and second end, a stator assembly, and a rotor assembly. The electric machine includes a motor control assembly having a circuit board. The motor control assembly is attached to the stator assembly of the motor. A first end shield is attached to the first end of the motor chassis. The first end shield includes a first opening that is configured to enable a cooling air stream to pass therethrough to cool the motor and the motor control assembly.

Methods and apparatus for mounting a motor controller on a stator assembly

Protection of a motor controller from a transient voltage is described. A method for protecting a motor controller from a transient voltage includes providing an electromagnetic interference (EMI) filter having at least a first input terminal, a second input terminal, a first output terminal, and a second output terminal, the EMI filter configured to suppress electromagnetic interference. The method also includes coupling a first voltage clamping device and a second voltage clamping device in series between the first output terminal and the second output terminal. The method also includes coupling a spark gap device to a ground conductor and to a shared node between the first voltage clamping device and the second voltage clamping device.

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Paulding, OH, United States of America

Donn Edward Steffen