Title :
A resolver-to-digital conversion method for fast tracking
Author :
Yim, Choong-Hyuk ; Ha, In-Joong ; KO, Myoung-Sam
Author_Institution :
Dept. of Control & Instrum. Eng., Seoul Nat. Univ., South Korea
fDate :
10/1/1992 12:00:00 AM
Abstract :
A resolver-to-digital (R/D) conversion method in which a bang-bang type phase comparator is used for fast tracking is proposed. The low-pass filter needed to reject carrier signal and noise is eliminated from the R/D conversion loop. Instead, two prefilters outside the R/D conversion loop take the role of the low-pass filter, resulting in a fast and accurate tracking R/D converter. Some simulation and experimental results and a mathematical performance analysis are presented to demonstrate the superior tracking performance
Keywords :
analogue-digital conversion; angular measurement; phase comparators; position measurement; angular position measurement; bang-bang type phase comparator; fast tracking; mathematical performance analysis; prefilters; resolver-to-digital conversion method; rotating machines; transducers; Circuit noise; Low pass filters; Magnetic noise; Magnetic separation; Phase locked loops; Phase noise; Shafts; Signal resolution; Tracking loops; Voltage-controlled oscillators;
Journal_Title :
Industrial Electronics, IEEE Transactions on
