Systems, methods, and apparatus for controlling...

Details Systems, methods, and apparatus for controlling... Systems, methods, and apparatus for controlling...

2010-05-21

2011-11-22

Patel, Rajnikant (Department: 2838)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C361S154000

Reexamination Certificate

active

08064158

ABSTRACT:
Certain embodiments of the invention may include systems, methods, and apparatus for controlling bi-directional drive current through an actuator. The method may include receiving a direction control signal, manipulating one or more devices to establish at least one switchable positive current path or at least one switchable negative current path through an actuator based at least in part on the direction control signal, providing feedback based at least on current associated with the actuator, and controlling the current based at least in part on the feedback. The method may include manipulating one or more devices to establish at least one positive current path and at least one negative current path through an actuator via pulse width modulation control.

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