DE69313512D1 - Schaltung zur Schleifenverstärkungsänderung für Spindelservo - Google Patents
Schaltung zur Schleifenverstärkungsänderung für SpindelservoInfo
- Publication number
- DE69313512D1 DE69313512D1 DE69313512T DE69313512T DE69313512D1 DE 69313512 D1 DE69313512 D1 DE 69313512D1 DE 69313512 T DE69313512 T DE 69313512T DE 69313512 T DE69313512 T DE 69313512T DE 69313512 D1 DE69313512 D1 DE 69313512D1
- Authority
- DE
- Germany
- Prior art keywords
- circuit
- loop gain
- gain change
- spindle servo
- servo
- 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
- 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
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/28—Speed controlling, regulating, or indicating
-
- 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
- G11B19/20—Driving; Starting; Stopping; Control thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/22—Controlling the speed digitally using a reference oscillator, a speed proportional pulse rate feedback and a digital comparator
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rotational Drive Of Disk (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4130986A JPH05325403A (ja) | 1992-05-22 | 1992-05-22 | スピンドルサーボ回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69313512D1 true DE69313512D1 (de) | 1997-10-09 |
DE69313512T2 DE69313512T2 (de) | 1998-01-08 |
Family
ID=15047249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69313512T Expired - Fee Related DE69313512T2 (de) | 1992-05-22 | 1993-05-12 | Schaltung zur Schleifenverstärkungsänderung für Spindelservo |
Country Status (4)
Country | Link |
---|---|
US (1) | US5432766A (de) |
EP (1) | EP0570834B1 (de) |
JP (1) | JPH05325403A (de) |
DE (1) | DE69313512T2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR0143529B1 (ko) * | 1994-06-22 | 1998-07-15 | 김광호 | 디스크 회전 제어 장치 및 방법 |
KR0129245B1 (ko) * | 1994-07-14 | 1998-04-18 | 구자홍 | 씨디-롬 드라이브의 스핀들 모터 제어 회로 및 그 방법 |
BE1008963A3 (nl) * | 1994-11-18 | 1996-10-01 | Philips Electronics Nv | Schijfvormige registratiedrager, alsmede opteken- en/of uitleesinrichting voor optekening/uitlezing van informatie op/van de registratiedrager. |
JP3477941B2 (ja) * | 1994-11-25 | 2003-12-10 | ソニー株式会社 | ディスク再生装置の信号処理回路 |
US5956307A (en) * | 1995-03-08 | 1999-09-21 | Matsushita Electric Industrial Co., Ltd. | Device end method for reproducing data from disk, method for controlling rotation of disk, and reproduction clock generating device |
KR100329151B1 (ko) * | 1995-04-27 | 2002-11-29 | 삼성전자 주식회사 | 디스크구동기록장치의스핀들모터구동제어회로 |
JP3631311B2 (ja) * | 1995-12-15 | 2005-03-23 | 富士通株式会社 | 光ディスク装置 |
JP3889457B2 (ja) * | 1996-03-13 | 2007-03-07 | パイオニア株式会社 | 回転制御装置及び回転制御方法 |
US5946279A (en) * | 1996-04-30 | 1999-08-31 | Mitsumi Electric Co., Ltd. | Servo circuit, digital PLL circuit and optical disk device |
KR980004705A (ko) * | 1996-06-28 | 1998-03-30 | 김광호 | 씨디-롬 드라이브에서의 스핀들 모터 회전속도 제어방법 및 그 장치 |
KR100468682B1 (ko) * | 1997-08-25 | 2005-04-06 | 삼성전자주식회사 | 스핀들 모터 제어장치 |
JP3669839B2 (ja) * | 1998-04-24 | 2005-07-13 | 三星電子株式会社 | ディスクドライブのリードリトライ方法 |
US6157604A (en) * | 1998-05-18 | 2000-12-05 | Cirrus Logic, Inc. | Sampled amplitude read channel employing a baud rate estimator for digital timing recovery in an optical disk storage device |
KR20000008997A (ko) * | 1998-07-20 | 2000-02-15 | 윤종용 | 스핀들 모터 제어장치 |
US7375923B2 (en) * | 2005-05-31 | 2008-05-20 | Seagate Technology Llc | High speed and high capacity data storage array |
US8737008B1 (en) | 2011-05-12 | 2014-05-27 | Western Digital Technologies, Inc. | Disk drive adjusting gain of spindle motor compensator based on a ratio of spin speeds |
US8649121B1 (en) | 2012-03-28 | 2014-02-11 | Western Digital Technologies, Inc. | Disk drive tuning speed control loop for a spindle motor |
US20140320998A1 (en) | 2013-04-24 | 2014-10-30 | Western Digital Technologies, Inc. | Disk drive with improved spin-up control |
US9230592B1 (en) | 2014-12-23 | 2016-01-05 | Western Digital Technologies, Inc. | Electronic system with a method of motor spindle bandwidth estimation and calibration thereof |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5671856A (en) * | 1979-11-15 | 1981-06-15 | Sony Corp | Playback device of disc |
DE3364130D1 (en) * | 1982-06-15 | 1986-07-24 | Toshiba Kk | Motor control circuit of data reproduction apparatus |
US4485337A (en) * | 1983-05-09 | 1984-11-27 | Control Data Corporation | Servo data driven motor speed control |
GB2166318B (en) * | 1984-09-14 | 1988-08-03 | Pioneer Electronic Corp | Recording disk data playback apparatus |
US5289451A (en) * | 1984-11-29 | 1994-02-22 | Canon Kabushiki Kaisha | Optical information recording/reproduction apparatus including means for detecting the type of recording medium |
EP0237682B1 (de) * | 1985-12-24 | 1991-02-27 | Kabushiki Kaisha Toshiba | Steuersystem für ein Gerät zur Wiedergabe optischer Informationen |
JPS62259263A (ja) * | 1986-05-06 | 1987-11-11 | Pioneer Electronic Corp | スピンドルサ−ボ引込み方法及びその装置 |
JPS63135553U (de) * | 1987-02-26 | 1988-09-06 | ||
JPH06101197B2 (ja) * | 1988-10-12 | 1994-12-12 | パイオニア株式会社 | Clvディスク駆動用スピンドルサーボループのループゲイン制御方法 |
JPH0756730B2 (ja) * | 1989-12-28 | 1995-06-14 | パイオニア株式会社 | スピンドルサーボ回路 |
JP2542097B2 (ja) * | 1990-01-16 | 1996-10-09 | パイオニア株式会社 | クロック生成用pll回路を含む読取線速度可変型ディスク記録情報再生装置 |
JP2926900B2 (ja) * | 1990-06-01 | 1999-07-28 | ソニー株式会社 | ディスク再生装置 |
EP0525809B1 (de) * | 1991-08-02 | 2001-12-05 | Sony Corporation | Digitaler Kodierer mit dynamischer Quantisierungsbitverteilung |
-
1992
- 1992-05-22 JP JP4130986A patent/JPH05325403A/ja active Pending
-
1993
- 1993-05-12 DE DE69313512T patent/DE69313512T2/de not_active Expired - Fee Related
- 1993-05-12 EP EP93107759A patent/EP0570834B1/de not_active Expired - Lifetime
-
1994
- 1994-10-03 US US08/316,812 patent/US5432766A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5432766A (en) | 1995-07-11 |
EP0570834B1 (de) | 1997-09-03 |
JPH05325403A (ja) | 1993-12-10 |
EP0570834A1 (de) | 1993-11-24 |
DE69313512T2 (de) | 1998-01-08 |
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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 |