System and method for improving frequency response in a magneto-resistive preamplifier
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United States of America Patent
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Mar 25, 2003
Grant Date -
Sep 19, 2002
app pub date -
Jan 23, 2001
filing date -
Jan 23, 2001
priority date (Note) -
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Abstract
A preamplifier system includes an amplifier stage having at least one feedback network. The feedback network has a feedback resistance that may be adjusted to improve a frequency response of the preamplifier. A feedback control system is operative to set the resistance of the feedback network as a function of a resistance value of an associated read/write head.
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