Application of High-Linearity Analog Optocoupler in DSP Acquisition Circuit

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An applied hardware circuit for detecting the AGC signals isolated with DSP is designed based on a high-linearity analog optocoupler. The problem of narrow measuring scope, low linearity and instability which caused by noisy signals is resolved when collects industrial analog signals into DSP. The practical circuit with proper design of components is designed through repeated experiments. The experiment data are analyzed by the method of least-square. The analyzed results show this circuit has the high accuracy and good linearity.

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Periodical:

Edited by:

Amanda Wu

Pages:

944-948

Citation:

Y. Q. Tan et al., "Application of High-Linearity Analog Optocoupler in DSP Acquisition Circuit", Applied Mechanics and Materials, Vol. 232, pp. 944-948, 2012

Online since:

November 2012

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$38.00

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[2] J. Basilio Simaes, Rui M. C. Silva, Antonio Miguel L. S. Morgado, Carlos M. Correia: The Optical Coupling of Analog Signals, IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 43, NO. 3, JUNE (1996).

[3] Liu Jia, Wang Xiaofei, Li Dong: The Design of Broadband Measuring Leakage Current System Based on TMS320F2812, 2010 International Conference on Intelligent System Design and Engineering Application.

DOI: https://doi.org/10.1109/isdea.2010.405