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IEICE TRANSACTIONS on Electronics

A Low-Power Write Driver for Hard Disk Drives

Tatsuya KAWASHIMO, Hiroki YAMASHITA, Masayoshi YAGYU, Fumio YUKI

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Summary :

This paper describes a new low-power write driver circuit for mobile hard disk drive preamplifiers. To achieve low power consumption, we developed a write driver circuit with a single-stage MOS transistor as the current driver, which both switches and controls the write current. We also developed a reflection cancellation method to suppress the distortion of the write current waveform during write transition. Fabricated using 0.35-µm SOI-BiCMOS technology, this write driver circuit consumes low power, 380 mW (at 100 MHz).

Publication
IEICE TRANSACTIONS on Electronics Vol.E89-C No.11 pp.1670-1673
Publication Date
2006/11/01
Publicized
Online ISSN
1745-1353
DOI
10.1093/ietele/e89-c.11.1670
Type of Manuscript
Special Section LETTER (Special Section on Novel Device Architectures and System Integration Technologies)
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