KR101215848B1 - 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지 - Google Patents

하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지 Download PDF

Info

Publication number
KR101215848B1
KR101215848B1 KR1020050093957A KR20050093957A KR101215848B1 KR 101215848 B1 KR101215848 B1 KR 101215848B1 KR 1020050093957 A KR1020050093957 A KR 1020050093957A KR 20050093957 A KR20050093957 A KR 20050093957A KR 101215848 B1 KR101215848 B1 KR 101215848B1
Authority
KR
South Korea
Prior art keywords
current
load
variable
terminal
input signal
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
KR1020050093957A
Other languages
English (en)
Korean (ko)
Other versions
KR20060092961A (ko
Inventor
조나단 에이치. 피스쳐
Original Assignee
에이저 시스템즈 엘엘시
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 에이저 시스템즈 엘엘시 filed Critical 에이저 시스템즈 엘엘시
Publication of KR20060092961A publication Critical patent/KR20060092961A/ko
Application granted granted Critical
Publication of KR101215848B1 publication Critical patent/KR101215848B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3008—Bifet SEPP output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3061—Bridge type, i.e. two complementary controlled SEPP output stages
    • H03F3/3062—Bridge type, i.e. two complementary controlled SEPP output stages with asymmetrical driving of the end stage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3081—Duplicated single-ended push-pull arrangements, i.e. bridge circuits
    • 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
    • H03F3/45098—PI types
    • 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
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45197—Pl types
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45652—Indexing scheme relating to differential amplifiers the LC comprising one or more further dif amp stages, either identical to the dif amp or not, in cascade
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45722—Indexing scheme relating to differential amplifiers the LC comprising one or more source followers, as post buffer or driver stages, in cascade in the LC

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
KR1020050093957A 2004-10-06 2005-10-06 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지 Expired - Fee Related KR101215848B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US61679004P 2004-10-06 2004-10-06
US60/616,790 2004-10-06
US11/216,993 US7466200B2 (en) 2004-10-06 2005-08-31 Composite output stage for hard disk drive preamplifier
US11/216,993 2005-08-31

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020120043129A Division KR101259368B1 (ko) 2004-10-06 2012-04-25 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지

Publications (2)

Publication Number Publication Date
KR20060092961A KR20060092961A (ko) 2006-08-23
KR101215848B1 true KR101215848B1 (ko) 2012-12-31

Family

ID=35429866

Family Applications (2)

Application Number Title Priority Date Filing Date
KR1020050093957A Expired - Fee Related KR101215848B1 (ko) 2004-10-06 2005-10-06 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지
KR1020120043129A Expired - Fee Related KR101259368B1 (ko) 2004-10-06 2012-04-25 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1020120043129A Expired - Fee Related KR101259368B1 (ko) 2004-10-06 2012-04-25 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지

Country Status (5)

Country Link
US (1) US7466200B2 (enExample)
JP (1) JP2006109485A (enExample)
KR (2) KR101215848B1 (enExample)
GB (1) GB2419052B (enExample)
TW (1) TWI387964B (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7746590B2 (en) * 2004-10-06 2010-06-29 Agere Systems Inc. Current mirrors having fast turn-on time
JP5406470B2 (ja) * 2008-06-20 2014-02-05 キヤノン株式会社 バッファ駆動装置
RU2421895C1 (ru) * 2010-05-04 2011-06-20 Государственное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ГОУ ВПО "ЮРГУЭС") Дифференциальный усилитель
US8953267B2 (en) * 2011-11-01 2015-02-10 Lsi Corporation Digital input detector and associated adaptive power supply
US8681442B2 (en) 2012-05-11 2014-03-25 Western Digital Technologies, Inc. Disk drive comprising extended range head proximity sensor
US9887552B2 (en) * 2013-03-14 2018-02-06 Analog Devices, Inc. Fine timing adjustment method
US10026456B2 (en) * 2015-02-23 2018-07-17 Qualcomm Incorporated Bitline positive boost write-assist circuits for memory bit cells employing a P-type Field-Effect transistor (PFET) write port(s), and related systems and methods
US11855588B2 (en) 2022-01-21 2023-12-26 Stmicroelectronics S.R.L. Differential driver

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9303138D0 (en) * 1993-02-17 1993-03-31 Plessey Semiconductors Ltd Integrated circuit amplifiers
DE69414820T2 (de) 1994-02-28 1999-04-15 Stmicroelectronics S.R.L., Agrate Brianza, Mailand/Milano Ausgangsstufe insbesondere für integrierte Verstärker mit aussen verbundenen Ausgangsleistungsvorrichtungen
JPH09289419A (ja) * 1996-04-22 1997-11-04 Hitachi Ltd 半導体集積回路および磁気ディスク駆動装置
JP2001257578A (ja) * 2000-03-09 2001-09-21 Nec Corp ドライバ回路
JP3868707B2 (ja) 2000-04-18 2007-01-17 株式会社日立グローバルストレージテクノロジーズ ヘッドバイアス回路及びこれを用いた磁気ディスク装置
JP4574813B2 (ja) * 2000-08-09 2010-11-04 旭化成エレクトロニクス株式会社 増幅回路
JP3883037B2 (ja) * 2001-02-28 2007-02-21 株式会社日立製作所 媒体記録再生システム
US6686772B2 (en) * 2001-11-19 2004-02-03 Broadcom Corporation Voltage mode differential driver and method
US6965266B1 (en) * 2004-02-10 2005-11-15 Intersil America's Inc. High voltage differential amplifier using low voltage devices
US7126596B1 (en) * 2004-02-18 2006-10-24 Analog Devices, Inc. Rail-to-rail amplifier for use in line-inversion LCD grayscale reference generator

Also Published As

Publication number Publication date
GB0520264D0 (en) 2005-11-16
TW200627405A (en) 2006-08-01
KR101259368B1 (ko) 2013-04-30
US7466200B2 (en) 2008-12-16
US20060072232A1 (en) 2006-04-06
GB2419052B (en) 2009-03-18
TWI387964B (zh) 2013-03-01
JP2006109485A (ja) 2006-04-20
KR20060092961A (ko) 2006-08-23
GB2419052A (en) 2006-04-12
KR20120058484A (ko) 2012-06-07

Similar Documents

Publication Publication Date Title
KR101259368B1 (ko) 하드 디스크 드라이브 전치 증폭기용 복합 출력 스테이지
CN1111317C (zh) 高输入阻抗单端、低供电电压磁阻前置放大器电路
US6496317B2 (en) Accurate adjustable current overshoot circuit
JP4321437B2 (ja) 磁気ディスクメモリ装置
US6252735B1 (en) Voltage-biasing, voltage-sensing differential preamplifier for magnetoresistive elements
US7425867B2 (en) Differential input/differential output converter circuit
US7206155B2 (en) High-speed, low power preamplifier write driver
US7751140B1 (en) TMR/GMR amplifier with input current compensation
US9001448B2 (en) Pre-amplifier output stage with integrated test buffer
US7573331B2 (en) Low power low noise amplifier for a magnetoresistive sensor
US7251091B2 (en) Current-sense bias circuit for a magnetoresistive head and method of sensing a current therethrough
US6847501B2 (en) Method and apparatus for providing matched differential MR biasing and pre-amplification
KR101215851B1 (ko) 고속 턴-온 타임을 가진 전류 미러들
US6724556B2 (en) Single pole voltage bias loop for increased stability
JP2002092802A (ja) キャパシタ・バイアス回復装置と方法
US7564638B2 (en) Preamplifier circuit and method for a disk drive device
US6510012B1 (en) High-speed CMOS buffer circuit with programmable quadratic transfer function
US7701654B2 (en) Apparatus and method for controlling common mode voltage of a disk drive write head
US6696896B2 (en) Method for implementing high frequency programmable poles and zeros in disk drive preamplifiers
US6060872A (en) Voltage bias current sense single ended preamplifier with second stage dominant pole
US20010022699A1 (en) Differentially driven, current mirror based coil driver
KR100192597B1 (ko) 하드디스크 드라이버 장치의 증폭회로
US6473256B2 (en) Method and apparatus for a 200 NS write to read switch time circuit
JP2008054075A (ja) 半導体集積回路及びそれを用いた磁気記憶装置
US6154001A (en) Anti-glitch circuit for voice-coil-motor servo operation in disk drive systems

Legal Events

Date Code Title Description
PA0109 Patent application

St.27 status event code: A-0-1-A10-A12-nap-PA0109

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

A201 Request for examination
P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

A107 Divisional application of patent
E13-X000 Pre-grant limitation requested

St.27 status event code: A-2-3-E10-E13-lim-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

PA0107 Divisional application

St.27 status event code: A-0-1-A10-A18-div-PA0107

St.27 status event code: A-0-1-A10-A16-div-PA0107

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

PN2301 Change of applicant

St.27 status event code: A-3-3-R10-R13-asn-PN2301

St.27 status event code: A-3-3-R10-R11-asn-PN2301

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U11-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

R17-X000 Change to representative recorded

St.27 status event code: A-5-5-R10-R17-oth-X000

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R11-asn-PN2301

PN2301 Change of applicant

St.27 status event code: A-5-5-R10-R14-asn-PN2301

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20161221

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20161221