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Real-time, low cost embedded de-noising of motor position control signals

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2 Author(s)
Sami Khorbotly ; Dept. of Electrical and Comp. Engineering and Comp. Sci., Ohio Northern University, Ada, USA ; Joan E. Carletta

In feedback control system applications, sensor signals, often noisy, must be fed back to the controller under tight time constraints. Conventional de-noising methods were developed without considering delay, and are inappropriate for feedback loops. An embedded, short-delay signal de-noising system is suggested in this paper. The system is specifically designed to de-noise the position control signal for a sensorless switched reluctance motor, but can be extended to other applications. The results show that a significant noise reduction is achieved with a latency of 66 ns.

Published in:

2007 50th Midwest Symposium on Circuits and Systems

Date of Conference:

5-8 Aug. 2007