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Software-based resolver-to-digital conversion using a DSP
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DOI：10.1109/TIE.2007.903952.png)
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摘要
En 中文
A simple and cost-effective software-based resolver-to-digital converter using a digital signal processor is presented. The proposed method incorporates software generation of the resolver carrier using a digital filter for synchronous demodulation of the resolver outputs in such a way that there is a substantial savings on hardware like the costly carrier oscillator and associated digital and analog circuits for amplitude demodulators. In addition, because the method does not cause any time delay, the dynamics of the servo control using the scheme are not affected. Furthermore, the method enables the determination of the angle for a complete 360 degrees shaft rotation with reasonable accuracy using a lookup table that contains entries of only up to 45 degrees. Computer simulations and experimental results demonstrate the effectiveness and applicability of the proposed scheme.
Keyword:
angle measurement
resolver converter
resolver-to-digital (R/D) conversion
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IF:
7.2
论文数:
1.8W
被引数:
9.8W
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