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

2003-03-18

2008-08-26

Mercedes, Dismery E (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of the amplifier

C360S046000, C360S065000, C360S067000, C327S110000

Reexamination Certificate

active

07417817

ABSTRACT:
A write driver circuit for a magnetic storage medium includes a first write driver sub-circuit that has an output that communicates with a first node of a write head. The first write driver circuit includes a first driver circuit and a first feedback path between the input and the output of the first driver circuit. A second write driver sub-circuit has an output that communicates with a second node of the write head. The second write driver sub-circuit includes a second driver circuit and a second feedback path between the input and the output of the second driver circuit. The write driver circuit has a substantially constant output impedance during operation, balanced differential and common mode resistances, and a substantially constant common mode voltage across the write head during operation.

REFERENCES:
patent: 4551772 (1985-11-01), Sliger
patent: 5291069 (1994-03-01), Gooding et al.
patent: 5331479 (1994-07-01), Madsen
patent: 5386328 (1995-01-01), Chiou et al.
patent: 5612828 (1997-03-01), Brannon et al.
patent: 5638012 (1997-06-01), Hashimoto et al.
patent: 5757215 (1998-05-01), Schuelke et al.
patent: 5781046 (1998-07-01), Ngo et al.
patent: 5822141 (1998-10-01), Chung et al.
patent: 5869988 (1999-02-01), Jusuf et al.
patent: 5894237 (1999-04-01), Brannon et al.
patent: 6052017 (2000-04-01), Pidutti et al.
patent: 6181496 (2001-01-01), Price, Jr.
patent: 6184727 (2001-02-01), Price, Jr.
patent: 6185057 (2001-02-01), Masenas
patent: 6191643 (2001-02-01), Nayebi et al.
patent: 6201653 (2001-03-01), Contreras et al.
patent: 6218903 (2001-04-01), Hashimoto et al.
patent: 6222695 (2001-04-01), Canario
patent: 6246269 (2001-06-01), Schuler et al.
patent: 6246533 (2001-06-01), Davis et al.
patent: 6252450 (2001-06-01), Patti et al.
patent: 6259305 (2001-07-01), Pakriswamy
patent: 6285221 (2001-09-01), Leighton et al.
patent: 6297921 (2001-10-01), Price et al.
patent: 6335643 (2002-01-01), Ono
patent: 6366421 (2002-04-01), Teterud
patent: 6373298 (2002-04-01), Teterud et al.
patent: 6396346 (2002-05-01), Ranmuthu et al.
patent: 6404574 (2002-06-01), Barnett
patent: 6429987 (2002-08-01), Cheng
patent: 6456148 (2002-09-01), Patti et al.
patent: 6504666 (2003-01-01), Patti et al.
patent: 6512645 (2003-01-01), Patti et al.
patent: 6512646 (2003-01-01), Leighton et al.
patent: 6532123 (2003-03-01), Veenstra et al.
patent: 6545514 (2003-04-01), Barrow
patent: 6587296 (2003-07-01), Iroaga et al.
patent: 6603623 (2003-08-01), Fontana et al.
patent: 6721115 (2004-04-01), Price, Jr.
patent: 6798591 (2004-09-01), Barnett et al.
patent: 6798598 (2004-09-01), Suzuki et al.
patent: 6813110 (2004-11-01), Leighton et al.
patent: 6831800 (2004-12-01), Ranmuthu
patent: 6879455 (2005-04-01), Ngo et al.
patent: 7006313 (2006-02-01), Ngo
patent: 7206155 (2007-04-01), Kuehlwein et al.
patent: 7277245 (2007-10-01), Aram et al.
patent: 2002/0186578 (2002-12-01), Kim
patent: 2003/0184901 (2003-10-01), Takahashi
patent: 2005/0190476 (2005-09-01), Wilson et al.
patent: 2006/0097761 (2006-05-01), Stein et al.

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