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Self-tuning model reference type disk drive controller
Self-tuning model reference type disk drive controller
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机译:自调整模型参考类型磁盘驱动器控制器
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摘要
Method and apparatus for moving a head of a disc drive from an initial position to a destination position on a recording surface of a rotatable disc by generating and applying a model reference current to an actuator motor. A servo circuit includes a current profile generator which generates a baseline reference current profile. A gain calculator calculates first and second gain factors in relation to an initial velocity of the head. A gain block generates the model reference current by applying the first gain factor to a first portion of the baseline reference current profile used to accelerate the head and subsequently applying the second gain factor to a second portion of the baseline reference current profile used to decelerate the head, wherein the first and second gain factors have different respective magnitudes to compensate for a nonzero initial velocity of the head.
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