Accurate tracking of coil resistance
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United States of America Patent
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Mar 7, 2006
Issued Date -
N/A
app pub date -
Feb 19, 2003
filing date -
Feb 19, 2003
priority date (Note) -
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Abstract
Methods and computer program products for determining accurate estimates of coil resistance are provided. Current differences between pairs of current values are determined. Additionally, voltage differences between pairs of actuator coil voltages (corresponding to the current values) are determined. Coil resistance is estimated based on the current differences and the voltage differences. These coil resistance estimates can be useful for accurately estimating actuator coil, actuator arm and/or head velocity.
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