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Development of PC based Digital Controller of Ultrasonic Motor Using FPGA  

Kim, Dong-Ok (전남대 전기공학과 BK연구)
Lee, Hwa-Chun (전남대 전기공학과)
Song, Sung-Geun (전남대 전기공학과)
Kim, Young-Dong (조선대 정보제어계측공학부)
Lim, Young-Cheol (전남대 전기공학과)
Park, Sung-Jun (전남대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.12, no.6, 2007 , pp. 500-509 More about this Journal
Abstract
In this paper, we propose a novel pc-based 8-channel USB interface digital multi-controller (DMC) has capacity to be able to adjust ultrasonic motor's (USM's) the parameters-frequency, amplitude, phase difference using FPGA. The proposed DMC can control parameters directly by digital logic through a FPGA. Since it has counter circuit for rotary encoder to measure position and velocity of USM, the other separate circuits are unnecessary. Therefore, it could reduce the size of controller and the production cost. Finally, to verify the performance of proposed DMC, we tested the speed characteristic of two types USM with no-load as adjusting the parameters.
Keywords
Ultrasonic motor; Digital multi-controller(DMC); FPGA; USB;
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