| 摘要 |
PROBLEM TO BE SOLVED: To provide the current feedback type control method and apparatus of an actuator for making a current detection section single, and simplifying a configuration circuit in the driving control apparatus of the actuator that requires current feedback control. SOLUTION: A plurality of actuators 20A to 20C to be controlled are synchronized entirely for carrying out duty drive, the current value of a common current path 14 to each of drive circuits 12A to 12C of the actuators 20A to 20C is detected by a current detection circuit 13, a rate of current distribution to each drive circuit of the common drive current is calculated according to the drive duty signal value of each of the drive circuits 12a to 12C and the basic resistance value of each of the actuators 20A to 20C, the drive current value of each of the actuators 20a to 20C is estimated and calculated according to the current value detected by the current detection circuit 13 and the rate of current distribution to each of the drive circuits 12a to 12C of the calculated common drive current, and current feedback control is carried out for each of the actuators 20A to 20C by the drive current value of each actuator that has been estimated and calculated.
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