Area efficient and accurate CORDIC processor for motor control drive

Author

Kebbati, H.S. ; Blonde, J. Ph ; Braun, F.

Author_Institution

LEPSI, Univ. Louis Pasteur, Strasbourg, France

Volume

1

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

212

Abstract

The CORDIC algorithm can compute linear, trigonometric and hyperbolic functions. Mathematical identities also allow computation of other functions. Our primary aim is applications in motor control drive, such as concordia/park transform, pulse width modulation (PWM)... In this paper, we present an implementation of a fixed-point processor based on CORDIC algorithm. Large numerical errors due to such systems are eliminated by including additional hardware. We estimate the performances of our CORDIC scheme and compare it with previously proposed scheme and show that it provides a significant saving in area.

Keywords

digital signal processing chips; electric machine analysis computing; fixed point arithmetic; machine vector control; motor drives; pulse width modulation; VLSI chip; accurate CORDIC processor; area efficient CORDIC processor; fixed-point processor; hyperbolic functions; iterative architecture; linear functions; motor control drive; pulse width modulation; rotational mode; trigonometric functions; unified CORDIC; vectoring mode; Arithmetic; Computer architecture; Computer errors; Delay; Hardware; Iterative algorithms; Motor drives; Pulse width modulation; Signal processing algorithms; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2003. ICECS 2003. Proceedings of the 2003 10th IEEE International Conference on

Print_ISBN

0-7803-8163-7

Type

conf

DOI

10.1109/ICECS.2003.1302014

Filename

1302014