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1. 发明授权

US06717330B2 Ultrasonic motor and electronic device having the ultrasonic motor 有权
标题翻译：超声波电机和具有超声波马达的电子装置
公开(公告)号：US06717330B2
公开(公告)日：2004-04-06
申请号：US10187570
申请日：2002-07-02
申请人： Akihiro Iino , Kouji Nitadori , Masao Kasuga
发明人： Akihiro Iino , Kouji Nitadori , Masao Kasuga
IPC分类号： H02N200
CPC分类号： H02N2/163 , H02N2/14
摘要： A control portion always monitors a present-position signal from a position sensor and monitors whether the present position of a moving body is a desired position, or not (Step 101). In the case where the control portion detects that the present position of the moving body reaches the desired position, the control portion generates a stop command signal and gives the stop command signal to an oscillation drive circuit (S102). Then, the control portion checks whether overshooting occurs, or not (S103), and in the case where the control portion judges that overshooting occurs, the control portion retains a stop command signal as it is for a stop command retaining time t (S104). After the stop command retaining time t elapses, the control portion gives a reverse command signal to the oscillation drive circuit to conduct reverse operation (S105). After Step S105, the control is returned to Step S101 and the above operation is repeated. Then, in the case where the control portion judges that overshooting does not occur in Step S103, position correcting operation is completed.
摘要翻译：控制部分总是监视来自位置传感器的当前位置信号，并且监视移动体的当前位置是否为期望位置（步骤101）。在控制部检测到移动体的当前位置达到期望位置的情况下，控制部产生停止指令信号，并向振荡驱动电路送出停止命令信号（S102）。然后，控制部检查是否发生过冲（S103），在控制部判断为过冲的情况下，控制部按照停止指令保持时间t保持停止指令信号（S104）。在停止命令保持时间t过去之后，控制部分向振荡驱动电路给出反向指令信号以进行反向操作（S105）。在步骤S105之后，控制返回到步骤S101，并重复上述操作。然后，在步骤S103中控制部判断为不发生过冲的情况下，完成位置校正动作。

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