发明名称 |
Positioning control apparatus |
摘要 |
A positioning control apparatus for a magnetic disk apparatus. Internal models and a trajectory generation section are constructed in a control program. Based on generated position trajectory and velocity trajectory and an internal model position and velocity, a model control section outputs a first operation signal Umf for a fixed sample time Tu and then outputs a second operation signal Ums for Tu. The model control section calculates Umf and Ums so as to cause a position Pm and a velocity Vm output by an internal model 2 Tu seconds later to coincide with the generated position trajectory and velocity trajectory. When a detector has detected a voice coil saturation current for head movement, a signal obtained by subtracting a position feedback signal Uh from a detected voice coil current is used as an internal model input to thereby cause the model to track a control subject.
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申请公布号 |
US2003095354(A1) |
申请公布日期 |
2003.05.22 |
申请号 |
US20020294595 |
申请日期 |
2002.11.15 |
申请人 |
ATSUMI TAKENORI;KOBAYASHI MASAHITO;NAKAGAWA SHINSUKE |
发明人 |
ATSUMI TAKENORI;KOBAYASHI MASAHITO;NAKAGAWA SHINSUKE |
分类号 |
G11B21/08;G05D3/12;G11B5/55;G11B21/10;(IPC1-7):G11B5/596 |
主分类号 |
G11B21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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