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Third-order theory and bang-bang control of voice coil actuators

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1 Author(s)
Ananthanarayanan, K. ; Recording Technology, Center, Santa, Clara, CA

A theory of voice coil motor actuators involving third-order differential terms in displacement that includes the inductance of the motor coil has been developed for bang-bang control time-optimal performance. Universal curves have been obtained using the theory that exhibits relationships between dimensionless quantities. The curves enable designers to choose appropriate actuator performance parameters to meet design objectives. Experimental methods have been described to determine some of the important parameters involved in the theory.

Published in:

Magnetics, IEEE Transactions on  (Volume:18 ,  Issue: 3 )