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US 2014/0177083 A1Published application
Independently driven write coils
AssigneeSeagate Technology LLC
InventorsKevin Richard Heim, Kirill A. Rivkin, Eric Meloche, John Wolf
Life of this patent
Estimating the term…
Abstract
A writer assembly having two separately driven write coils allows a combined write field generated by the writer assembly to be fine turned and optimized for a particular application. Two preamplifiers may be incorporated into a printed circuit board in order to separately drive the write coils. In other implementations, there may be more than two write coils and corresponding preamplifiers.
Claims23
A method comprising:
- independently driving at least two write coils within a writer assembly using separate preamplifiers.
A writer assembly comprising:
- a first write coil independently driven by a first preamplifier;
- and
- a second write coil independently driven by a second preamplifier.
A system comprising:
- a printed circuit board including a first preamplifier and a second preamplifier;
- and
- a writer assembly including a first write coil independently driven by the first preamplifier and a second write coil independently driven by the second preamplifier.
Dependencies are inferred from the claim text.