| 摘要 |
PROBLEM TO BE SOLVED: To restrain current consumption by changing the supplied amount of a driving current according to conditions set when motor-driving a lens and when stopping the driving. SOLUTION: The amount of the current supplied to a pulse motor 200 is changed by optimally changing the duty ratio of a PWM signal generated by a PWM generator, when setting before starting driving, when driving, when setting after starting driving and when holding, thereby power consumption is controlled. COPYRIGHT: (C)2007,JPO&INPIT |
