Chopper motor controller having pulse-by-pulse sensing of...

Details Chopper motor controller having pulse-by-pulse sensing of... Chopper motor controller having pulse-by-pulse sensing of...

B - Operations, Transporting

60

L

318/85, 342/34.3

B60L 7/12 (2006.01) H02P 3/08 (2006.01) H02P 7/29 (2006.01)

Patent

CA 1068383

ABSTRACT OF THE DISCLOSURE A pulse width modulation chopper controller for a D.C. traction motor has plug sensing means which monitors the voltage across the motor armature on a pulse-by-pulse basis and is responsive, only when the power switch is turned on, to the motor acting as a generator to limit the "on-time" of the power switch before current of high magnitude can flow in the motor.

256512

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