Electricity: electrical systems and devices – Control circuits for electromagnetic devices
Reexamination Certificate
2007-04-27
2010-06-29
Nguyen, Danny (Department: 2836)
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
C361S160000
Reexamination Certificate
active
07746619
ABSTRACT:
A clutch actuator for an electromechanical clutch having a solenoid actuating coil initially provides power to the solenoid at a high rate by using a high duty cycle pulse with a modulated controller. When the initial engagement of the clutch elements is sensed by a decrease in current, the duty cycle of the pulse with modulator is reduced and thereafter increased in a control fashion to accomplish a soft start.
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Harnett Sean O.
Sestito David L.
Harter Secrest & Emery LLP
Nguyen Danny
Salai Esq. Stephen B.
Sendec Corporation
Shaw Esq. Brian B.
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