D.C. solenoid control circuit

Details D.C. solenoid control circuit D.C. solenoid control circuit

1987-06-22

1989-06-20

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Braking

318762, 307 22, H02P 318

Patent

active

048412155

ABSTRACT:
A D.C. solenoid control circuit for use in mechanisms driven by an A.C. motor. A rectifier converts A.C. current to D.C. current and provides an A.C. current flow path and a D.C. current flow path. Only the motor is connected in the A.C. current flow path to an output electrical power source. The D.C. solenoid is connected through the rectifier in the D.C. current flow path. The D.C. solenoid winding drives an actuator within the solenoid the activate the separate mechanism. In-rush current drawn by the motor upon start-up is converted to a high current level by the rectifier and input to the winding of the solenoid causing its immediate energization and, upon de-activation, its fast release.

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