A/D conversion device and servo control device
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United States of America Patent
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May 7, 2013
Grant Date -
Mar 24, 2011
app pub date -
Nov 29, 2010
filing date -
May 30, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An A/D conversion device includes an A/D conversion circuit that converts an inputted analog signal to digital data and outputs it, a digital signal correction unit that performs a correction process to the digital data and outputs a digital signal, and a phase compensation unit that performs phase compensation in accordance with a phase delay amount of the digital signal with respect to the analog signal generated in the A/D conversion circuit and the digital signal correction unit wherein the A/D conversion circuit comprises a pulse transit circuit, a transmit position detection structure, and a digital data creation structure, the delay characteristic of the digital data being identified from the inputted analog signal.
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