DRIVE CONTROLLER OF SOLENOID

摘要

PROBLEM TO BE SOLVED: To provide a drive controller of a solenoid capable of suppressing occurrence of disturbance and decreasing electric current applied to the solenoid to zero as soon as possible as occation demands.

SOLUTION: The drive controller 136 of the solenoid comprises a current supply stop determining means 156 for determining whether or not to stop supply of electric current to the solenoid 108 based on a target current value VR, and a connection switching means 158 for stopping the supply of the electric current prior to feedback control when a state to stop the supply of the electric current to the solenoid 108 is determined by the current supply stop determining means 156. The drive controller 136 suppresses occurrence of disturbance by feedback-controlling current value made to flow through the solenoid 108 based on the deviation EV between a target current value VR and a current value VIO made to flow through the solenoid and simultaneously decreasing electric current applied to the solenoid 108 to zero as soon as possible as occation demands.

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