H - Electricity – 01 – H
Patent
H - Electricity
01
H
342/44
H01H 47/32 (2006.01) F16D 48/06 (2006.01)
Patent
CA 1232345
APPARATUS AND METHOD FOR CONTROLLING ELECTROMAGNETIC CLUTCHES AND THE LIKE Abstract To energize an electromagnetic clutch or other electromagnetic device having a movable armature, a voltage is applied across the coil of the device to cause an initial current to flow therethrough. A current dip upon initial movement of the armature is detected, and in response, a substantially linearly increasing current is applied to the coil, establishing a controlled movement of the armature.
492673
Fairchild Weston Systems Inc.
Smart & Biggar
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