Rerkratn, Apinai

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Rerkratn, Apinai
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Rerkratn, A.
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apinai.re@kmitl.ac.th

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    Item type:Publication,
    A simple amplitude detector-based demodulator for resolver converters
    (2010-12-01)
    Kaewpoonsuk, Anucha
    ;
    Katman, Ratchanoo
    ;
    Kamsri, Thawatchai
    ;
    Rerkratn, Apinai
    ;
    Riewruja, Vanchai
    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. ©ICROS.