DE69629549T2 - Anordnung mit einem magnetschreibkopf und schreibverstärker mit kapazitiver, vorwärtsgekoppelter kompensation - Google Patents
Anordnung mit einem magnetschreibkopf und schreibverstärker mit kapazitiver, vorwärtsgekoppelter kompensation Download PDFInfo
- Publication number
- DE69629549T2 DE69629549T2 DE69629549T DE69629549T DE69629549T2 DE 69629549 T2 DE69629549 T2 DE 69629549T2 DE 69629549 T DE69629549 T DE 69629549T DE 69629549 T DE69629549 T DE 69629549T DE 69629549 T2 DE69629549 T2 DE 69629549T2
- Authority
- DE
- Germany
- Prior art keywords
- transistor
- current
- main electrode
- terminal
- coupled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 65
- 230000004044 response Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000003071 parasitic effect Effects 0.000 description 22
- 239000000872 buffer Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000013016 damping Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000007850 degeneration Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/022—H-Bridge head driver circuit, the "H" configuration allowing to inverse the current direction in the head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
- H03F1/14—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of neutralising means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95203187 | 1995-11-21 | ||
| EP95203187 | 1995-11-21 | ||
| PCT/IB1996/001211 WO1997019445A1 (en) | 1995-11-21 | 1996-11-12 | Arrangement comprising a magnetic write head, and write amplifier with capacitive feed-forward compensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69629549D1 DE69629549D1 (de) | 2003-09-25 |
| DE69629549T2 true DE69629549T2 (de) | 2004-06-17 |
Family
ID=8220847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69629549T Expired - Lifetime DE69629549T2 (de) | 1995-11-21 | 1996-11-12 | Anordnung mit einem magnetschreibkopf und schreibverstärker mit kapazitiver, vorwärtsgekoppelter kompensation |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5841603A (https=) |
| EP (1) | EP0804789B1 (https=) |
| JP (1) | JP3683277B2 (https=) |
| KR (1) | KR100449934B1 (https=) |
| CN (1) | CN1148723C (https=) |
| DE (1) | DE69629549T2 (https=) |
| TW (1) | TW325559B (https=) |
| WO (1) | WO1997019445A1 (https=) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6124751A (en) * | 1997-06-30 | 2000-09-26 | Stmicroelectronics, Inc. | Boost capacitor for an H-bridge integrated circuit motor controller having matching characteristics with that of the low-side switching devices of the bridge |
| US6052017A (en) * | 1997-06-30 | 2000-04-18 | Stmicroelectronics, Inc. | Method and circuit for enabling rapid flux reversal in the coil of a write head associated with a computer disk drive, or the like |
| US6166869A (en) * | 1997-06-30 | 2000-12-26 | Stmicroelectronics, Inc. | Method and circuit for enabling rapid flux reversal in the coil of a write head associated with a computer disk drive, or the like |
| US6219195B1 (en) * | 1998-01-29 | 2001-04-17 | Marvell Technology Group Ltd. | Low-noise magneto-resistive amplifier using CMOS technology |
| US6301068B1 (en) | 1998-07-02 | 2001-10-09 | Seagate Technology Llc | Programmable write current waveform for high frequency magnetic recording |
| US6246533B1 (en) * | 1998-07-13 | 2001-06-12 | Agilent Technologies, Inc. | Programmable write driver circuit for writing information to a magnetic storage media |
| US6222695B1 (en) * | 1998-08-10 | 2001-04-24 | Siemens Microelectronics, Inc. | System and method for a preamplifier write circuit with reduced rise/fall time |
| US6683740B1 (en) * | 1999-10-21 | 2004-01-27 | Sony Corporation | Architecture for a hard disk drive write amplifier circuit with damping control |
| US6631045B1 (en) | 1999-10-29 | 2003-10-07 | Stmicroelectronics, Inc. | Method and apparatus for ramp loading in a hard disk drive using pulse width modulation |
| US6275092B1 (en) * | 1999-11-16 | 2001-08-14 | Texas Instruments Incorporated | Active damping circuit |
| US6671118B2 (en) * | 2000-04-18 | 2003-12-30 | Seagate Technology Llc | Common mode termination method and apparatus for a write head |
| US6580326B2 (en) * | 2001-05-25 | 2003-06-17 | Infineon Technologies North America Corp. | High-bandwidth low-voltage gain cell and voltage follower having an enhanced transconductance |
| US6646481B2 (en) * | 2001-09-28 | 2003-11-11 | Winbond Electronics Corporation | Current steering circuit for amplifier |
| US7006313B2 (en) * | 2002-06-25 | 2006-02-28 | Texas Instruments Incorporated | Circuit and method to match common mode flex impedance and to achieve symmetrical switching voltage outputs of write driver |
| US7209307B2 (en) * | 2003-03-27 | 2007-04-24 | Sony Corporation | Variable read output impedance control circuit for a magnetic media storage system |
| US7133234B2 (en) * | 2003-07-08 | 2006-11-07 | Texas Instruments Incorporated | Hard disk drive preamplifier write driver |
| US7362530B2 (en) * | 2004-03-02 | 2008-04-22 | Texas Instruments Incorporated | Amplifier apparatus for use with a sensor |
| US7375909B2 (en) * | 2004-04-14 | 2008-05-20 | Stmicroelectronics, Inc. | Write driver with power optimization and interconnect impedance matching |
| US7365928B2 (en) * | 2004-04-14 | 2008-04-29 | Stmicroelectronics, Inc. | Write driver with improved boosting circuit and interconnect impedance matching |
| JP4406030B2 (ja) * | 2004-06-15 | 2010-01-27 | アナログ デバイセス インコーポレーテッド | 高精度のチョッパ安定化電流ミラー |
| ATE352087T1 (de) * | 2004-11-05 | 2007-02-15 | Skidata Ag | Vorrichtung zum beschreiben einer magnetschicht |
| US20060132198A1 (en) * | 2004-12-22 | 2006-06-22 | Reza Sharifi | Above rail writer driver |
| US7463094B2 (en) * | 2007-03-30 | 2008-12-09 | Don Roy Sauer | Linearized class AB biased differential input stage |
| US7772926B2 (en) * | 2008-08-25 | 2010-08-10 | Analog Devices, Inc. | Setting the DC operating current of a rail-to-rail output stage of an op-amp |
| US7999619B2 (en) * | 2009-02-09 | 2011-08-16 | Infineon Technologies Ag | Class AB output stage |
| JP5459157B2 (ja) * | 2010-09-16 | 2014-04-02 | 富士電機株式会社 | 乗算器要素回路および乗算器 |
| US9042143B2 (en) | 2011-10-29 | 2015-05-26 | Ixys Corporation | Low forward voltage rectifier using capacitive current splitting |
| US8649199B2 (en) | 2011-10-29 | 2014-02-11 | Ixys Corporation | Low forward voltage rectifier |
| US8804261B2 (en) * | 2012-07-27 | 2014-08-12 | Lsi Corporation | Over-the-rail write driver for magnetic storage systems |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5278912A (en) * | 1991-06-28 | 1994-01-11 | Resound Corporation | Multiband programmable compression system |
| JP3109889B2 (ja) * | 1992-01-30 | 2000-11-20 | 株式会社日立製作所 | 磁気ヘッド用回路 |
| US5287231A (en) * | 1992-10-06 | 1994-02-15 | Vtc Inc. | Write circuit having current mirrors between predriver and write driver circuits for maximum head voltage swing |
| US5315231A (en) * | 1992-11-16 | 1994-05-24 | Hughes Aircraft Company | Symmetrical bipolar bias current source with high power supply rejection ratio (PSRR) |
| DE69428678T2 (de) * | 1993-10-06 | 2002-07-11 | Koninklijke Philips Electronics N.V., Eindhoven | Vorrichtung zum auslesen von informationen von einer spur eines aufzeichnungsträgers |
| JP3623963B2 (ja) * | 1994-06-10 | 2005-02-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 情報信号記録装置 |
| EP0764320B1 (en) * | 1994-06-10 | 2000-12-27 | Koninklijke Philips Electronics N.V. | Arrangement comprising a magnetic write head, and write amplifier with capacitive current compensation |
| JPH10501665A (ja) * | 1994-06-15 | 1998-02-10 | フィリップス エレクトロニクス ネムローゼ フェンノートシャップ | 低電源電圧に関して同相除去をする差動増幅器 |
-
1996
- 1996-11-12 DE DE69629549T patent/DE69629549T2/de not_active Expired - Lifetime
- 1996-11-12 EP EP96935245A patent/EP0804789B1/en not_active Revoked
- 1996-11-12 JP JP51954097A patent/JP3683277B2/ja not_active Expired - Lifetime
- 1996-11-12 WO PCT/IB1996/001211 patent/WO1997019445A1/en not_active Ceased
- 1996-11-12 KR KR1019970704930A patent/KR100449934B1/ko not_active Ceased
- 1996-11-12 CN CNB961915374A patent/CN1148723C/zh not_active Expired - Lifetime
- 1996-11-20 US US08/752,866 patent/US5841603A/en not_active Expired - Fee Related
- 1996-12-05 TW TW085115041A patent/TW325559B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1169200A (zh) | 1997-12-31 |
| EP0804789A1 (en) | 1997-11-05 |
| DE69629549D1 (de) | 2003-09-25 |
| KR100449934B1 (ko) | 2004-12-14 |
| EP0804789B1 (en) | 2003-08-20 |
| WO1997019445A1 (en) | 1997-05-29 |
| JP3683277B2 (ja) | 2005-08-17 |
| TW325559B (en) | 1998-01-21 |
| CN1148723C (zh) | 2004-05-05 |
| KR19980701539A (ko) | 1998-05-15 |
| JPH10513300A (ja) | 1998-12-15 |
| US5841603A (en) | 1998-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |