LINEAR VIBRATION MOTOR DRIVE CONTROLLING CIRCUIT

摘要

PURPOSE: The drive control circuit of a linear vibrating motor is provided to optimally control a pause state when a linear vibrating motor pauses. CONSTITUTION: A linear vibrating motor includes a stator and a vibrator. The linear vibrating motor vibrates the vibrator for the stator. A driving signal generator generates a driving signal. The driving signal alternatively spills a plus current and a minus current onto a coil. A h-bridge circuit(20) generates a driving current according to the driving signal. The h-bridge circuit supplies the driving current to the coil. A differential amplification circuit(30) detects an induced voltage which is generated in the coil.