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公开(公告)号：EP0672287A4
公开(公告)日：1995-07-31
申请号：EP94928012
申请日：1994-08-31
Applicant: CIRRUS LOGIC INC
Inventor： ROMANO PAUL M
CPC classification number: G11B5/54
Abstract: A voice coil motor (VCM) control circuit (10) controls the motor operation to position a disk drive head and actuator arm assembly (202). A data processor (220) is continuously updated with the current position and relative radial velocity of the disk drive head (206) and actuator arm assembly (208). The data processor (220) provides signals to a digital-to-analog converter (DAC) of the VCM control circuit (10) representative of the amount of energy necessary to move the head and actuator arm assembly to a parking position from a current operating position.
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