Method of converting an analog signal into a digital signal
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United States of America Patent
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May 10, 2005
Grant Date -
N/A
app pub date -
Sep 27, 2004
filing date -
Jul 5, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
To enhance analog to digital conversion performance by obtaining a digital angle output using a negative feedback system including a resolver within a closed loop. The present invention provides a method of converting an analog signal into a digital signal, including inputting a two-phase sinusoidal signal an R/D conversion portion and converting an input rotational angle (θ) into a digital angle output (Φ), in which the method includes obtaining the digital angle output (Φ) using a negative feedback control system including the resolver within a closed loop.
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