| 摘要 |
A mover assembly ( 16 ) that moves or positions an object ( 12 ) includes a mover output ( 226 ), an actuator ( 230 ), and a control system ( 18 ). The mover output ( 226 ) is connected to the object ( 12 ), and the actuator ( 230 ) causes the mover output ( 226 ) to move. The control system ( 18 ) selectively directs a drive signal to the actuator ( 230 ) in a first mode and in a second mode. In the first mode, a peak voltage and a baseline voltage are sequentially directed to the actuator ( 230 ). In the second mode an intermediate voltage is directed to the actuator ( 230 ), the intermediate voltage being intermediate the peak voltage and the baseline voltage.
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