Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07f
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- Pages.2151-2155
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- 1998
A High efficient realization for quantity of ultrasonic motor
초음파 모터의 정량적 최대효율 구현
- Lee, Young-Dae (Dept. of Electrical Engineering, Inha University) ;
- Lee, Eul-Jae (Dept. of Electrical Engineering, Inha University) ;
- Kim, Young-Seok (Dept. of Electrical Engineering, Inha University)
- Published : 1998.07.20
Abstract
The traveling wave type ultrasonic motor(USM) has no electro-magnetic circuits( coil or core). The driving principle of the USM is based on high-frequency mechanical vibrations and frictional force. The USM, thus, is fed by two-phase high - frequency sinusoidal inverter using its series resonant parasitic components. For the using of series resonant type inverter, it should be needed to a USM parasitic capacitance and a proper inductor chosen. In this paper, the values of optimal inductance are designed and the efficiency of USM drives is achieved. The effectiveness of the proposed design is demonstrated by experiments.
Keywords