Patent ID: 9543097
Date: 2017-01-10
CPC Classifications: H01H

Claim:
1. A current control device for controlling an exciting current of a solenoid, the current control device comprising: a target setting section setting a target current value of the exciting current; a duty ratio setting section setting a duty ratio of a pulse width modulation (PWM) signal, which is provided to a drive circuit of the solenoid, based on the target current value; and a signal generating section generating the PWM signal, wherein the target current value is a value that periodically varies in a dither period longer than a PWM period, which is a pulse period of the PWM signal, the target setting section sets the target current value in every first setting period, the duty ratio setting section sets the duty ratio in every second setting period, and the first setting period and the second setting period are shorter than the dither period.