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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Novel method for driving the ultrasonic motor
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Novel method for driving the ultrasonic motor

机译：驱动超声波马达的新方法

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摘要

This paper reports a novel driving method for an annular plate-type ultrasonic motor. Instead of the direct current/alternating current (DC/AC) converter type driver using a conventional electromagnetic transformer, a compact disc-type piezoelectric transformer is used to obtain a high voltage output for driving the ultrasonic motor. The piezoelectric transformer is operated in the radial vibration mode at resonance frequency close to the resonance frequency of the ultrasonic motor. Later, it was found that the piezoelectric transformer could drive the ultrasonic motor, even if their resonance frequencies are not exactly the same by incorporating a matching network in the circuit. The maximum speed of the ultrasonic motor obtained by using this driving method is over 300 rpm. It is believed that the results of this study will have impact on the integration and miniaturization of the ultrasonic motor and its driving circuit.
机译：本文报道了一种新型的环形板式超声马达驱动方法。代替使用传统的电磁变压器的直流/交流（DC / AC）转换器类型的驱动器，紧凑型的压电变压器被用于获得用于驱动超声马达的高压输出。压电变压器在径向振动模式下以接近超声电机的共振频率的共振频率工作。后来发现，通过在电路中加入匹配网络，即使压电谐振器的共振频率不完全相同，压电变压器也可以驱动超声电动机。通过这种驱动方法获得的超声波马达的最大速度超过300 rpm。可以相信，这项研究的结果将对超声波马达及其驱动电路的集成和小型化产生影响。

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