| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive controller for a linear vibration motor, a drive control method for a linear vibration motor and a compact electrical apparatus capable of avoiding a mix-up between an operation due to power supply voltage drop and an operation due to a mode change to a specific control mode. <P>SOLUTION: A vibration amplitude change rate in time before and after starting a linear vibration motor stop control is made smaller than the rate before and after a mode transition from a normal control mode to another control mode. This control can make an operation sound change rate before and after starting the linear vibration motor stop control smaller than the operation sound change rate before and after changing a control mode. That is, a user can identify a cause of the sound change by hearing a difference in operation sound change rate, whether the sound change is due to a stop control performed because a battery residual capacity decreases or due to a control mode change. <P>COPYRIGHT: (C)2012,JPO&INPIT |
