Design of Digital Interface Circuit of Resolver Based on AD2S1200 in a Single Supply System

Chun Wei Yang; Da Zhai Li; Wei Zhou Wang; Zhe Jiang; Shu Sheng Bi

doi:10.4028/www.scientific.net/AMM.389.649

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 389Design of Digital Interface Circuit of Resolver...

Design of Digital Interface Circuit of Resolver Based on AD2S1200 in a Single Supply System

Abstract:

For applications of single supply, a digital interface circuit of resolver based on AD2S1200 is designed in a single 5V system. According to the given resolver, the amplification factor and driver capability of excitation signal is calculated and verified. In order to adjust the excitation signals amplitude and provide enough drive current to the resolvers primary winding, an operational amplifier with high current output capability AD8532 is chosen to set an excitation signal buffer circuit which works as a unity gain inverting proportional amplifier. Besides, the design greatly reduces the amount of components which is especially appropriate for the installation in a constriction space. To give a test for the interface circuit, the microcontroller ATmega16 is used to read the 12-bit parallel angle position data of resolver. The test result shows that the interface circuit can not only work well but also obtain an accuracy of angle position within 0.1°.

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Periodical:

Applied Mechanics and Materials (Volume 389)

Pages:

649-653

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.389.649

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Online since:

August 2013

Authors:

Chun Wei Yang, Da Zhai Li, Wei Zhou Wang, Zhe Jiang, Shu Sheng Bi

Keywords:

AD2S1200, Digital Interface, Resolver, Single Supply

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References

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