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Design and Implementation of a Fully Digital DC Servo System Based on a Single-Chip Microcomputer

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3 Author(s)
Tang, Pei-Chong ; Institute of Electronics Engineering, National Chiao Tung University, Hsinchu, Taiwan, Republic of China. ; Lu, Shui-Shong ; Wu, Yung-Chun

A single-chip microcomputer is used to design a fully digital dc servo system to replace the conventional analog circuits. This microcomputer performs three main tasks: the firing control of a three-phase full-wave thyristor dual converter; the compensation for the nonlinear and loading effect in the converter; and compensations of position loop and rate loop. With no current feedback and minimum components, this dc servo system provides fast transient response and high reliability.

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Industrial Electronics, IEEE Transactions on  (Volume:IE-29 ,  Issue: 4 )