DRIVING CIRCUIT DEVICE OF ACTUATOR, DRIVING METHOD, LENS MODULE AND ELECTRONIC EQUIPMENT USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a driving circuit device of an actuator capable of digitally and automatically selecting a notch filter matching to a resonance frequency of the actuator.SOLUTION: A driving circuit device 100A of an actuator has: a control part 120 which drives, controls an actuator 170, and selects a plurality of notch filters; a filter 130; a driver 140 which drives a voice coil motor (VCM) 170; a signal processing part 150 which amplifies a magnetic induction signal generated in the VCM 170; and a resonance frequency detection part 160 which digitally processes the signal of the signal processing part, measures, and calculates a resonance frequency. A predetermined notch filter is set by the control part 120 on the basis of a filter selection signal Sfr calculated, established by the resonance frequency detection part 160.