Title :
A simple amplitude detector-based demodulator for resolver converters
Author :
Kaewpoonsuk, Anucha ; Katman, Ratchanoo ; Kamsri, Thawatchai ; Rerkratn, Apinai ; Riewruja, Vanchai
Author_Institution :
Dept. of Phys., Naresuan Univ., Phitsanulok, Thailand
Abstract :
This paper presents a simple method based on sinusoidal-amplitude detector for realizing the resolver-signal demodulator. The proposed demodulator consists of two full-wave rectifiers, two ±unity-gain amplifiers, and two sinusoidal-amplitude detectors with control switches. Two output voltages are proportional to sine and cosine envelopes of resolver-shaft angle without low-pass filter. Experimental results demonstrating characteristic of the proposed circuit are included.
Keywords :
amplifiers; convertors; demodulators; rectifying circuits; transducers; control switches; cosine envelopes; full wave rectifiers; low-pass filter; resolver converter; resolver shaft angle; resolver-signal demodulator; sine envelopes; sinusoidal amplitude detector based demodulator; unity gain amplifiers; Converters; Demodulation; Detectors; Low pass filters; Rotors; Signal resolution; Stator windings; amplitude detector; demodulator; resolver converter;
Conference_Titel :
Control Automation and Systems (ICCAS), 2010 International Conference on
Conference_Location :
Gyeonggi-do
Print_ISBN :
978-1-4244-7453-0
Electronic_ISBN :
978-89-93215-02-1
