Write driver circuit for magnetic data storage systems

Details Write driver circuit for magnetic data storage systems Write driver circuit for magnetic data storage systems

2007-10-09

2007-10-09

Tzeng, Fred F. (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

Reexamination Certificate

active

11091225

ABSTRACT:
A write driver circuit for a magnetic storage medium that communicates with a write head having first and second nodes comprises a first driver circuit having a first input, a first output that communicates with the first node, and a first feedback path between the first input and the first output. A second driver circuit has a second input, a second output that communicates with the second node, and a second feedback path between the second input and the second output. A first write current circuit selectively drives current through the write head in a first direction. A second write current circuit selectively drives current through the write head in a second direction. A first boost circuit decreases a first transition period between current flowing in the first direction and current flowing in the second direction.

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