Current driver circuit for hard disk drive, controls damping circuit by pulse signal generated based on input signals to drive circuits

摘要

Drive circuits (11,12) drive inductive load (14) according to input signals (Vi1,Vi2). Damping control circuits (21,22) have signal generator which generate pulse signals of preset pulse width based on the transition of signals (Vi1,Vi2) in synchronization with switching of drive circuits to accordingly control the damping circuits (23,24) which reduce overshooting of output current.