DE69018108D1 - Servo-Stromkreis. - Google Patents

Servo-Stromkreis.

Info

Publication number
DE69018108D1
DE69018108D1 DE69018108T DE69018108T DE69018108D1 DE 69018108 D1 DE69018108 D1 DE 69018108D1 DE 69018108 T DE69018108 T DE 69018108T DE 69018108 T DE69018108 T DE 69018108T DE 69018108 D1 DE69018108 D1 DE 69018108D1
Authority
DE
Germany
Prior art keywords
servo circuit
servo
circuit
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
DE69018108T
Other languages
English (en)
Other versions
DE69018108T2 (de
Inventor
Shuichi Hashimoto
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69018108D1 publication Critical patent/DE69018108D1/de
Publication of DE69018108T2 publication Critical patent/DE69018108T2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41021—Variable gain
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42066—Position and speed and acceleration and current feedback
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42104—Loop switch, speed loop then position loop, mode switch
DE69018108T 1989-01-30 1990-01-08 Servo-Stromkreis. Expired - Fee Related DE69018108T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1017774A JP2613937B2 (ja) 1989-01-30 1989-01-30 サーボ回路

Publications (2)

Publication Number Publication Date
DE69018108D1 true DE69018108D1 (de) 1995-05-04
DE69018108T2 DE69018108T2 (de) 1995-08-24

Family

ID=11953063

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69018108T Expired - Fee Related DE69018108T2 (de) 1989-01-30 1990-01-08 Servo-Stromkreis.

Country Status (6)

Country Link
US (1) US4965501A (de)
EP (1) EP0381314B1 (de)
JP (1) JP2613937B2 (de)
KR (1) KR930004772B1 (de)
AU (1) AU609654B2 (de)
DE (1) DE69018108T2 (de)

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JPH0736130B2 (ja) * 1989-01-10 1995-04-19 富士通株式会社 サーボ位置決め回路
US5063454A (en) * 1989-01-10 1991-11-05 Fujitsu Limited Automatic adjustment method and system for servo motor circuit of a magnetic disk apparatus
JPH0736131B2 (ja) * 1989-01-10 1995-04-19 富士通株式会社 サーボ回路
US5194798A (en) * 1989-01-10 1993-03-16 Fujitsu Limited Servo circuit control method and system
US5231550A (en) * 1990-03-12 1993-07-27 Fujitsu Limited Track access control system preventing unintentional delay in movement of head in non-adjusted disc device
JPH03290706A (ja) * 1990-04-09 1991-12-20 Mitsubishi Electric Corp 数値制御装置
KR950001610B1 (ko) * 1990-06-29 1995-02-27 가부시기가이샤 도시바 자기헤드 이동속도 제어장치
JP3030513B2 (ja) * 1990-10-23 2000-04-10 株式会社日立製作所 ディスク記録装置
US5657179A (en) * 1991-03-28 1997-08-12 Seagate Technology, Inc. Method for reducing noise during track seeking in a disc drive
US5475545A (en) * 1991-03-28 1995-12-12 Seagate Technology, Inc. Method for reducing noise during seeks in a hard disk drive
US5305447A (en) * 1991-07-31 1994-04-19 Seagate Technology, Inc. Multi-task operating system for a disc drive
JPH05228794A (ja) * 1992-02-14 1993-09-07 Fanuc Ltd 主軸位置決め方式
JP3248220B2 (ja) * 1992-03-18 2002-01-21 株式会社日立製作所 ディスク装置及びその制御方法
JPH05274695A (ja) * 1992-03-26 1993-10-22 Toshiba Corp ヘッド移動制御装置
JPH065019A (ja) * 1992-04-08 1994-01-14 Internatl Business Mach Corp <Ibm> デイスク・ドライブ制御システム及び読み取り／書き込みヘツドの位置設定方法
US5343131A (en) * 1993-01-27 1994-08-30 Fujitsu Limited Method and apparatus for self-synchronizing seek deceleration
US5517099A (en) * 1993-06-15 1996-05-14 International Modern Technologies, Inc. Method and apparatus for robust integral-pulse control of a servodrive of unknown dynamics
JP2931749B2 (ja) * 1993-12-08 1999-08-09 株式会社東芝 データ記録再生装置とサーボ処理方法
US5696647A (en) * 1994-03-28 1997-12-09 Seagate Technology, Inc. Method for carrying out seeks in a hard disc drive to limit the generation of acoustic noise including using a slew rate limit
JPH086603A (ja) * 1994-04-18 1996-01-12 Canon Inc サーボ系の調整方法及びそのサーボ制御装置
KR970707478A (ko) * 1994-11-11 1997-12-01 디터 크리스트;하르도 노르트만 다수의 블록에 유효한 임의의 오버라이드 범위용 속도 제어 방법 및 장치(speed control for any override range effective over a plurality of blocks)
KR100277073B1 (ko) * 1995-07-24 2001-01-15 윤종용 자기 디스크 구동장치에서 자기 헤드의 속도 및 위치 추정기
KR0162607B1 (ko) * 1995-12-20 1999-01-15 김광호 보이스코일모터 구동 제어회로
KR100255189B1 (ko) * 1996-09-25 2000-05-01 윤종용 서보제어계의 게인추정방법
US6031684A (en) * 1997-06-03 2000-02-29 Seagate Technology, Inc. Servo gain optimization using model reference seeks in a disc drive
US6266203B1 (en) 1997-06-13 2001-07-24 Seagate Technology Llc Integrated temperature sense circuit in a disc drive
GB2341267B (en) * 1997-06-13 2001-05-09 Seagate Technology Temperature dependent disc drive parametric configuration
US6490120B1 (en) 1997-08-29 2002-12-03 Seagate Technology Llc Servo gain optimization using a variable convergence factor
US6252731B1 (en) 1997-10-16 2001-06-26 Seagate Technology Llc Parametric optimization using disc drive read channel quality measurements
US6570733B1 (en) 1998-01-13 2003-05-27 Seagate Technology Llc Adaptive servo gain adjustment to improve disc drive seek performance
US6268974B1 (en) 1998-07-13 2001-07-31 Seagate Technology Llc Gain optimization in a disc drive
US6449117B1 (en) 1998-07-13 2002-09-10 Seagate Technology Llc Reducing acoustic noise using a current profile during initial stages of a disc drive seek
GB2354632B (en) 1998-07-13 2003-03-12 Seagate Technology Llc Current profile shaping to reduce disc drive seek time variation and acoustic noise generation
JP2002538569A (ja) 1999-02-22 2002-11-12 シーゲイト テクノロジー エルエルシー 異なるサーボパルス・データ適格化モードを使用したシーク回復
US6597529B1 (en) * 1999-11-12 2003-07-22 Maxtor Corporation Method and apparatus for reducing acoustic noise in servo-controlled system
ATE439694T1 (de) * 2000-05-09 2009-08-15 Tennant Co Steuerstruktur fur eine lineare betatigungsvorrichtung
US6819521B2 (en) 2000-06-09 2004-11-16 Seagate Technology Llc Repeated runout position error compensation in a disc drive servo system
WO2001097215A1 (en) * 2000-06-09 2001-12-20 Seagate Technology Llc Reducing actuator arm oscillation during settle mode in a disc drive servo system
US6731453B2 (en) 2001-02-15 2004-05-04 Seagate Technology Llc Optimizing thermal performance of an integrated circuit in a disc drive
US6747838B2 (en) 2001-02-15 2004-06-08 Seagate Technology Llc Thermal performance of an integrated amplifier in a disc drive
JP4799761B2 (ja) * 2001-05-28 2011-10-26 オンセミコンダクター・トレーディング・リミテッド ステッピングモータの制御方法
US6574070B2 (en) 2001-08-09 2003-06-03 Seagate Technology Llc Model reference generator for a disc drive
US7082010B1 (en) 2001-11-09 2006-07-25 Maxtor Corporation Method and apparatus for reducing seek acoustics in a disk drive using feedback during large current transitions
EP1842998B1 (de) 2002-08-22 2011-10-19 Nissan Motor Co., Ltd. Steuerungsvorrichtung für eine öffnende/schließende Fahrzeugkarosserie
DE102012025323A1 (de) 2012-12-22 2014-06-26 Festo Ag & Co. Kg Verfahren zum Betreiben einer Linearmotoranordnung und Linearmotoranordnung
CN104898466B (zh) * 2015-03-13 2019-04-19 中国科学院光电研究院 一种激光跟踪仪的通信控制电路

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Publication number Priority date Publication date Assignee Title
US4096425A (en) * 1974-09-19 1978-06-20 Ferranti Limited Servo systems
NL7704258A (nl) * 1977-04-19 1978-10-23 Daisy Syst Holland Servosturing met gedigitaliseerde afstandsbepa- ling en variabele versterkings-/dempingscoeffi- cienten.
US4184108A (en) * 1977-11-23 1980-01-15 Sperry Rand Corporation Self-regulating electronic tachometer
JPS5564661A (en) * 1978-11-08 1980-05-15 Toshiba Corp Self-compensator for magnetic disk memory unit
EP0097208B1 (de) * 1982-06-18 1987-03-11 International Business Machines Corporation Kopfpositionierungssystem mit automatischer Verstärkungsregelung
JPS5919248A (ja) * 1982-07-23 1984-01-31 Sanyo Electric Co Ltd サ−ボゲイン調整回路
JPS5965975A (ja) * 1982-10-05 1984-04-14 Comput Basic Mach Technol Res Assoc 磁気デイスク記憶装置
JPS5978577U (ja) * 1982-11-15 1984-05-28 株式会社東芝 移動機構のサ−ボ制御装置
US4574227A (en) * 1983-11-14 1986-03-04 Datapoint Corporation Dual mode servo
US4633423A (en) * 1984-03-27 1986-12-30 Storage Technology Corporation Coherent error suppression in digital tachometers and the like
US4609855A (en) * 1984-11-09 1986-09-02 Motorola, Inc. Adaptive servomotor control
JPS6242373A (ja) * 1985-08-20 1987-02-24 Fujitsu Ltd 磁気デイスク装置におけるシ−ク用モ−タの速度制御装置
JPS62203203A (ja) * 1986-03-03 1987-09-07 Sumitomo Electric Ind Ltd サ−ボ回路
JPS6368913A (ja) * 1986-09-10 1988-03-28 Fujitsu Ltd サ−ボ制御回路
US4775903A (en) * 1986-10-14 1988-10-04 Hewlett-Packard Company Sampled servo seek and track follow system for a magnetic disc drive
JP2612262B2 (ja) * 1986-12-16 1997-05-21 富士通株式会社 磁気デイスク装置
JPH0783625B2 (ja) * 1987-04-03 1995-09-06 三菱電機株式会社 検出ヘツドの速度制御装置
JPH01116972A (ja) * 1987-10-30 1989-05-09 Mitsubishi Electric Corp 記憶装置

Also Published As

Publication number Publication date
EP0381314A2 (de) 1990-08-08
AU609654B2 (en) 1991-05-02
US4965501A (en) 1990-10-23
JPH02199513A (ja) 1990-08-07
AU4785490A (en) 1990-08-09
KR930004772B1 (en) 1993-06-05
EP0381314B1 (de) 1995-03-29
DE69018108T2 (de) 1995-08-24
EP0381314A3 (de) 1991-08-14
JP2613937B2 (ja) 1997-05-28

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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