Patent ID: 7235936
Filing Date: 2007-06-26
Classification: H02P

Abstract:
1. A linear vibration motor comprising: a stator provided with one of a permanent magnet and an electromagnet including a winding; a vibrator provided with the other of the permanent magnet and the electromagnet and supported to be able to vibrate; a movement detector for detecting movement of the vibrator; an output controller for supplying electric power to the winding of the electromagnet based on an output of the movement detector so as to generate vibration of the vibrator; a rechargeable battery for supplying electric power to the output controller; and a power supply for supplying electric power to the output controller and to the rechargeable battery, wherein the power supply supplies electric power in an intermittent mode with synchronized timing such that the timing of the intermittent power supply is synchronized with the timing of the power supply to the winding.