SG47225A1 - Method and circuit for driving hard disk drive spindle and actuator motors - Google Patents
Method and circuit for driving hard disk drive spindle and actuator motorsInfo
- Publication number
- SG47225A1 SG47225A1 SG1997001684A SG1997001684A SG47225A1 SG 47225 A1 SG47225 A1 SG 47225A1 SG 1997001684 A SG1997001684 A SG 1997001684A SG 1997001684 A SG1997001684 A SG 1997001684A SG 47225 A1 SG47225 A1 SG 47225A1
- Authority
- SG
- Singapore
- Prior art keywords
- circuit
- hard disk
- disk drive
- drive spindle
- actuator motors
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
-
- 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
-
- 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
- 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
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
- G11B33/122—Arrangements for providing electrical connections, e.g. connectors, cables, switches
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1909896P | 1996-06-03 | 1996-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG47225A1 true SG47225A1 (en) | 1998-03-20 |
Family
ID=21791422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1997001684A SG47225A1 (en) | 1996-06-03 | 1997-05-22 | Method and circuit for driving hard disk drive spindle and actuator motors |
Country Status (7)
Country | Link |
---|---|
US (1) | US6021015A (ko) |
EP (1) | EP0811973B1 (ko) |
JP (1) | JPH1097783A (ko) |
KR (1) | KR100472587B1 (ko) |
DE (1) | DE69724517T2 (ko) |
SG (1) | SG47225A1 (ko) |
TW (1) | TW367487B (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6160368A (en) * | 1998-06-22 | 2000-12-12 | Western Digital Corporation | Faster spin-down operation in a disk drive by utilizing pulsed braking |
EP1143437A1 (en) * | 2000-03-31 | 2001-10-10 | STMicroelectronics S.r.l. | Controller for a hard disk drive with control circuits for head actuator, spindle motor and piezoelectric head micropositioners which are integrated on the same substrate |
IT1320529B1 (it) * | 2000-07-07 | 2003-12-10 | St Microelectronics Srl | Circuito di pilotaggio di attuatori piezoelettrici, in particolare per un trasduttore di lettura/scrittura di dischi rigidi. |
US6690536B1 (en) * | 2000-10-31 | 2004-02-10 | Western Digital Technologies, Inc. | Disk drive employing VCM demand current to calibrate VCM IR voltage for velocity control of an actuator arm |
US6867944B1 (en) * | 2000-10-31 | 2005-03-15 | Western Digital Technologies, Inc. | Disk drive comprising VCM stall detector for velocity control of an actuator arm |
JP4265877B2 (ja) * | 2001-05-30 | 2009-05-20 | 株式会社ルネサステクノロジ | 磁気ディスク記憶装置 |
US7054091B2 (en) * | 2002-11-23 | 2006-05-30 | Texas Instruments Incorporated | Digital processor controlled method and circuit for retracting a head carriage assembly to a parked position in a mass data storage device, or the like |
KR100770937B1 (ko) * | 2006-11-02 | 2007-10-26 | 삼성전자주식회사 | 음성 코일 구동 수단과 전류 인가 방법 |
US9286932B2 (en) | 2009-10-30 | 2016-03-15 | Hewlett Packard Enterprise Development Lp | Hard disk drive having regions corresponding to different speeds at which storage surface rotates |
JP2014096883A (ja) * | 2012-11-08 | 2014-05-22 | Nippon Densan Corp | スピンドルモータおよびディスク駆動装置 |
WO2015010234A1 (en) | 2013-07-22 | 2015-01-29 | Texas Instruments Incorporated | Hybrid controller for brushless dc motor |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3483457A (en) * | 1967-06-21 | 1969-12-09 | Massachusetts Inst Technology | Electronically commutated permanent magnet torque motor |
US3518516A (en) * | 1967-12-26 | 1970-06-30 | Ibm | Stepping motor constant velocity drive |
US3601678A (en) * | 1970-05-27 | 1971-08-24 | Ibm | Stepping motor constant velocity drive including closed and open loop control |
US4172050A (en) * | 1974-04-22 | 1979-10-23 | The Dow Chemical Company | High efficiency titanate catalyst for polymerizing olefins |
US4295085A (en) * | 1979-05-25 | 1981-10-13 | General Electric Company | Phase lock loop commutation position control and method |
US4250435A (en) * | 1980-01-04 | 1981-02-10 | General Electric Company | Clock rate control of electronically commutated motor rotational velocity |
US4394610A (en) * | 1981-08-07 | 1983-07-19 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Adaptive reference voltage generator for firing angle control of line-commutated inverters |
US4401934A (en) * | 1981-08-07 | 1983-08-30 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Adaptive control system for line-commutated inverters |
US4928043A (en) * | 1988-11-14 | 1990-05-22 | Synektron Corporation | Back EMF sampling circuit for phase locked loop motor control |
US5091680A (en) * | 1990-02-06 | 1992-02-25 | Seagate Technology, Inc. | Motor brake circuit for magnetic disk drive system |
US5329412A (en) * | 1990-06-01 | 1994-07-12 | Conner Peripherals, Inc. | Two and one half inch diameter disk drive having 0.6 inch height |
US5396384A (en) * | 1992-05-12 | 1995-03-07 | Quantum Corporation | Hard disk drive architecture |
US5327053A (en) * | 1992-08-12 | 1994-07-05 | Seagate Technology, Inc. | Apparatus and method for detecting rotor position in a sensorless and brushless DC motor |
US5297024A (en) * | 1992-12-01 | 1994-03-22 | Sgs-Thomson Microelectronics, Inc. | Voice coil driver with variable gain in seek and track-follow modes |
WO1994029852A1 (en) * | 1993-06-11 | 1994-12-22 | Maxtor Corporation | Type ii pcmcia hard disk drive card |
CN1131996A (zh) * | 1993-07-08 | 1996-09-25 | 麦克斯特公司 | 具有三个磁盘的iii型pcmcia硬盘驱动器 |
US5530326A (en) * | 1993-07-19 | 1996-06-25 | Quantum Corporation | Brushless DC spindle motor startup control |
US5384524A (en) * | 1993-09-02 | 1995-01-24 | Cirrus Logic, Inc. | Voice coil motor control circuit and method for servo system control in a computer mass storage device |
US5491395A (en) * | 1993-09-17 | 1996-02-13 | Maxtor Corporation | TUT servo IC architecture |
JPH07272398A (ja) * | 1994-03-28 | 1995-10-20 | Hitachi Ltd | ディスク装置の制御装置 |
US5426354A (en) * | 1994-11-15 | 1995-06-20 | Synektron Corporation | Vector control for brushless DC motor |
US5767653A (en) * | 1995-10-24 | 1998-06-16 | Micro Linear Corporation | Variable speed AC induction motor controller |
-
1997
- 1997-05-21 US US08/861,251 patent/US6021015A/en not_active Expired - Lifetime
- 1997-05-22 SG SG1997001684A patent/SG47225A1/en unknown
- 1997-06-02 TW TW086107498A patent/TW367487B/zh not_active IP Right Cessation
- 1997-06-03 DE DE69724517T patent/DE69724517T2/de not_active Expired - Lifetime
- 1997-06-03 JP JP9145348A patent/JPH1097783A/ja active Pending
- 1997-06-03 KR KR1019970022912A patent/KR100472587B1/ko not_active IP Right Cessation
- 1997-06-03 EP EP97303778A patent/EP0811973B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
TW367487B (en) | 1999-08-21 |
EP0811973B1 (en) | 2003-09-03 |
US6021015A (en) | 2000-02-01 |
EP0811973A2 (en) | 1997-12-10 |
KR100472587B1 (ko) | 2005-07-01 |
EP0811973A3 (en) | 1998-12-16 |
KR980006780A (ko) | 1998-03-30 |
JPH1097783A (ja) | 1998-04-14 |
DE69724517D1 (de) | 2003-10-09 |
DE69724517T2 (de) | 2004-07-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SG48530A1 (en) | Method and circuit for driving a hard disk drive spindle motor | |
SG50006A1 (en) | Disk drive having optimized spindle speed for environment | |
AU3657597A (en) | Method and apparatus for improving disk drive performance | |
HK1017937A1 (en) | Disk drive apparatus | |
EP0665535A3 (en) | Device and method for controlling a magnetic disk drive. | |
EP0814477A3 (en) | Disc drive | |
EP0665490A3 (en) | Device for switching off the supply voltage of a SCSI disk unit. | |
GB2307089B (en) | Hard disk drive with reduced servo field and driving method therefor | |
GB2328780B (en) | Sector seeking method for reducing disk drive power consumption | |
GB2364163B (en) | Disc drive method and apparatus for dynamically adjusting seek operations | |
EP0931313A4 (en) | DISKETTE UNIT WITH IMPROVED SPINDLE MOTOR LOADING MECHANISM | |
SG55407A1 (en) | Apparatus and method for reducing spindle power and acoustic noise in a disk drive | |
AU5996799A (en) | Method and apparatus for driving piezoelectric motors | |
SG47225A1 (en) | Method and circuit for driving hard disk drive spindle and actuator motors | |
HK1019653A1 (en) | Disc drive | |
GB9510300D0 (en) | Method for increasing drive torque | |
GB2312765B (en) | Servo control device and method for a hard disk drive | |
GB2327527B (en) | Head unlatch controlling method in magnetic disk drive | |
HK1003676A1 (en) | A system and method for controlling a seek operation in a disk drive | |
AU1299595A (en) | Axial spindle motor for hard disk drive assembly | |
SG54970A1 (en) | Servo method and device for hard disk drive | |
SG45526A1 (en) | Magnetic disk drive | |
GB2315914B (en) | Apparatus and method for controlling hard disk drive | |
EP0597479A3 (en) | Magnetic disk drive spindle motor. | |
EP0673033A3 (en) | Magnetic disk drive. |