DE69519731T2 - Anordnung mit magnetschreibkopf sowie schreibverstärker mit kapazitiver stromkompensation - Google Patents
Anordnung mit magnetschreibkopf sowie schreibverstärker mit kapazitiver stromkompensationInfo
- Publication number
- DE69519731T2 DE69519731T2 DE69519731T DE69519731T DE69519731T2 DE 69519731 T2 DE69519731 T2 DE 69519731T2 DE 69519731 T DE69519731 T DE 69519731T DE 69519731 T DE69519731 T DE 69519731T DE 69519731 T2 DE69519731 T2 DE 69519731T2
- Authority
- DE
- Germany
- Prior art keywords
- write
- amplifier
- write head
- writing
- head
- 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 - Fee Related
Links
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
- G11B5/09—Digital recording
-
- 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
-
- 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
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
- H03F3/45085—Long tailed pairs
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94201659 | 1994-06-10 | ||
PCT/IB1995/000431 WO1995035563A2 (en) | 1994-06-10 | 1995-06-06 | Arrangement comprising a magnetic write head, and write amplifier with capacitive current compensation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69519731D1 DE69519731D1 (de) | 2001-02-01 |
DE69519731T2 true DE69519731T2 (de) | 2001-07-05 |
Family
ID=8216939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69519731T Expired - Fee Related DE69519731T2 (de) | 1994-06-10 | 1995-06-06 | Anordnung mit magnetschreibkopf sowie schreibverstärker mit kapazitiver stromkompensation |
Country Status (8)
Country | Link |
---|---|
US (1) | US5790336A (de) |
EP (1) | EP0764320B1 (de) |
JP (1) | JP3773256B2 (de) |
KR (1) | KR100376025B1 (de) |
AT (1) | ATE198385T1 (de) |
DE (1) | DE69519731T2 (de) |
HK (1) | HK1013164A1 (de) |
WO (1) | WO1995035563A2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997019445A1 (en) * | 1995-11-21 | 1997-05-29 | Philips Electronics N.V. | Arrangement comprising a magnetic write head, and write amplifier with capacitive feed-forward compensation |
FR2757986A1 (fr) * | 1996-12-31 | 1998-07-03 | Philips Electronics Nv | Systeme de lecture d'informations magnetiques integre |
US6301068B1 (en) * | 1998-07-02 | 2001-10-09 | Seagate Technology Llc | Programmable write current waveform for high frequency magnetic recording |
GB2368713B (en) * | 1998-07-13 | 2002-11-06 | Hewlett Packard Co | A write driver circuit |
US6246533B1 (en) | 1998-07-13 | 2001-06-12 | Agilent Technologies, Inc. | Programmable write driver circuit for writing information to a magnetic storage media |
US6366421B2 (en) * | 1998-12-17 | 2002-04-02 | Texas Instruments Incorporated | Adjustable writer overshoot for a hard disk drive write head |
US6275092B1 (en) * | 1999-11-16 | 2001-08-14 | Texas Instruments Incorporated | Active damping circuit |
US6512649B1 (en) * | 2000-08-30 | 2003-01-28 | Stmicroelectronics, Inc. | Method for differentially writing to a memory disk |
US6671113B2 (en) | 2001-03-06 | 2003-12-30 | International Business Machines Corporation | Characteristically terminated write driver with compensation for magnetic response and method therefor |
US6650494B2 (en) * | 2001-06-08 | 2003-11-18 | Agere Systems Inc. | Magnetic write circuit with charge pumping capacitors |
US6857937B2 (en) * | 2002-05-30 | 2005-02-22 | Komag, Inc. | Lapping a head while powered up to eliminate expansion of the head due to heating |
US7119990B2 (en) * | 2002-05-30 | 2006-10-10 | Komag, Inc. | Storage device including a center tapped write transducer |
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 |
US7133234B2 (en) * | 2003-07-08 | 2006-11-07 | Texas Instruments Incorporated | Hard disk drive preamplifier write driver |
US7746590B2 (en) | 2004-10-06 | 2010-06-29 | Agere Systems Inc. | Current mirrors having fast turn-on time |
US11165456B2 (en) * | 2018-04-03 | 2021-11-02 | Semiconductor Components Industries, Llc | Methods and apparatus for a continuous time linear equalizer |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4551772A (en) * | 1984-03-28 | 1985-11-05 | Storage Technology Corporation | Write drive with current mirrors which reduce feed-through |
JPH088485B2 (ja) * | 1992-10-02 | 1996-01-29 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 差動出力回路 |
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 |
US5296975A (en) * | 1992-10-09 | 1994-03-22 | International Business Machines Corporation | High-transition-rate, low-supply-voltage write driver circuitry for magnetic inductive write head |
US5345346A (en) * | 1993-03-30 | 1994-09-06 | Vtc Inc. | Positive feedback low input capacitance differential amplifier |
US5386328A (en) * | 1993-06-18 | 1995-01-31 | Silicon Systems, Inc. | Current mirror based write driver |
-
1995
- 1995-06-06 JP JP50188096A patent/JP3773256B2/ja not_active Expired - Lifetime
- 1995-06-06 EP EP95918709A patent/EP0764320B1/de not_active Expired - Lifetime
- 1995-06-06 KR KR1019960707036A patent/KR100376025B1/ko not_active IP Right Cessation
- 1995-06-06 DE DE69519731T patent/DE69519731T2/de not_active Expired - Fee Related
- 1995-06-06 WO PCT/IB1995/000431 patent/WO1995035563A2/en active IP Right Grant
- 1995-06-06 AT AT95918709T patent/ATE198385T1/de not_active IP Right Cessation
-
1997
- 1997-07-15 US US08/893,928 patent/US5790336A/en not_active Expired - Fee Related
-
1998
- 1998-12-21 HK HK98114121A patent/HK1013164A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP3773256B2 (ja) | 2006-05-10 |
KR100376025B1 (ko) | 2003-08-14 |
EP0764320A2 (de) | 1997-03-26 |
WO1995035563A2 (en) | 1995-12-28 |
ATE198385T1 (de) | 2001-01-15 |
HK1013164A1 (en) | 1999-08-13 |
US5790336A (en) | 1998-08-04 |
EP0764320B1 (de) | 2000-12-27 |
JPH10501645A (ja) | 1998-02-10 |
DE69519731D1 (de) | 2001-02-01 |
WO1995035563A3 (en) | 1996-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |