Patent ID: 9557628
Date: 2017-01-31
CPC Classifications: G03B,H02P

Claim:
1. An actuator driving device, comprising: a first output terminal and a second output terminal configured to energize a driving coil of an actuator; an output circuit configured to apply a driving voltage to each of the first output terminal and the second output terminal; and a setting circuit configured to set and output a first duty ratio, a second duty ratio, and a delay time to the output circuit for controlling an amount of current through the driving coil, wherein the first duty ratio is set for a first output circuit to apply a first driving voltage and the second duty ratio is set for a second output circuit to apply a second driving voltage, wherein the delay time is a difference time between an apply timing of the first driving voltage and an apply timing of the second driving voltage, and wherein the setting circuit determines a length of the short-circuit period by the amount of current to be flowed through the driving coil.