DE69529968D1 - Wechselspannungseingangsstufe mit verkürzter Einschwingzeit für gemultiplexte Übertrager die einen geschalteten DC-Vorstrom benötigen - Google Patents

Wechselspannungseingangsstufe mit verkürzter Einschwingzeit für gemultiplexte Übertrager die einen geschalteten DC-Vorstrom benötigen

Info

Publication number
DE69529968D1
DE69529968D1 DE69529968T DE69529968T DE69529968D1 DE 69529968 D1 DE69529968 D1 DE 69529968D1 DE 69529968 T DE69529968 T DE 69529968T DE 69529968 T DE69529968 T DE 69529968T DE 69529968 D1 DE69529968 D1 DE 69529968D1
Authority
DE
Germany
Prior art keywords
transformers
multiplexed
switched
require
bias current
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
Application number
DE69529968T
Other languages
English (en)
Other versions
DE69529968T2 (de
Inventor
Scott W Cameron
De La Soujeole Axel Alegre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics lnc USA
Original Assignee
STMicroelectronics lnc USA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by STMicroelectronics lnc USA filed Critical STMicroelectronics lnc USA
Publication of DE69529968D1 publication Critical patent/DE69529968D1/de
Application granted granted Critical
Publication of DE69529968T2 publication Critical patent/DE69529968T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • G11B2005/0016—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers
    • G11B2005/0018—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation of magnetoresistive transducers by current biasing control or regulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Magnetic Recording (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
DE69529968T 1994-12-30 1995-12-22 Wechselspannungseingangsstufe mit verkürzter Einschwingzeit für gemultiplexte Übertrager die einen geschalteten DC-Vorstrom benötigen Expired - Fee Related DE69529968T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US366561 1994-12-30
US08/366,561 US6172548B1 (en) 1994-12-30 1994-12-30 Input stage with reduced transient time for use in multiplexing transducers that require a switched DC bias

Publications (2)

Publication Number Publication Date
DE69529968D1 true DE69529968D1 (de) 2003-04-24
DE69529968T2 DE69529968T2 (de) 2004-02-12

Family

ID=23443548

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529968T Expired - Fee Related DE69529968T2 (de) 1994-12-30 1995-12-22 Wechselspannungseingangsstufe mit verkürzter Einschwingzeit für gemultiplexte Übertrager die einen geschalteten DC-Vorstrom benötigen

Country Status (4)

Country Link
US (1) US6172548B1 (de)
EP (1) EP0720152B1 (de)
JP (1) JPH08235510A (de)
DE (1) DE69529968T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052832A1 (de) * 1999-05-14 2000-11-15 STMicroelectronics S.r.l. Telephonempfangsschaltung
US6404578B1 (en) 1999-09-28 2002-06-11 Koninklijke Philips Electronics N.V. Circuit for reduction and optimization of write-to-read settling times in magnetic medium storage devices
US6424480B1 (en) * 1999-09-28 2002-07-23 Koninklijke Philips Electronics N.V. Magnetic medium storage apparatus with read channel having a programmable write-to-read suppression
US6621649B1 (en) * 2000-11-10 2003-09-16 Texas Instruments Incorporated Write-to-read switching improvement for differential preamplifier circuits in hard disk drive systems
CN100341068C (zh) * 2004-07-01 2007-10-03 威盛电子股份有限公司 光学读取头取样介面系统
CN1328726C (zh) * 2004-07-12 2007-07-25 威盛电子股份有限公司 光学读取头取样介面系统
US20070279808A1 (en) * 2006-05-31 2007-12-06 Iben Icko E T Sensing mechanism for reading magnetic storage medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633344A (en) 1985-05-28 1986-12-30 Eastman Kodak Company Unambiguously tracking a data track in response to signals derived from the track data itself
US4878140A (en) 1988-06-21 1989-10-31 Hewlett-Packard Company Magneto-resistive sensor with opposing currents for reading perpendicularly recorded media
IT1231388B (it) 1989-08-25 1991-12-02 Sgs Thomson Microelectronics Convertitore di segnali elettrici analogici sbilanciati in segnali tutto-differenziali
JP2595806B2 (ja) 1990-11-13 1997-04-02 日本電気株式会社 磁気ディスク装置のリード・ライトアンプ回路
US5332931A (en) 1991-06-24 1994-07-26 Harris Corporation High speed differential comparator
JP3071256B2 (ja) * 1991-09-18 2000-07-31 ローム株式会社 増幅回路
CN1027564C (zh) 1992-05-16 1995-02-01 丘雪明 电容耦合的隔离式放大器
US5424678A (en) * 1994-02-02 1995-06-13 Apple Computer, Inc. Muting of computer sound system during power cycling

Also Published As

Publication number Publication date
JPH08235510A (ja) 1996-09-13
EP0720152A2 (de) 1996-07-03
EP0720152B1 (de) 2003-03-19
US6172548B1 (en) 2001-01-09
DE69529968T2 (de) 2004-02-12
EP0720152A3 (de) 1996-08-28

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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