KR970071712A - 전류콘트롤 에러를 줄이기 위한 적응 피이드 포워드 장치 - Google Patents

전류콘트롤 에러를 줄이기 위한 적응 피이드 포워드 장치 Download PDF

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Publication number
KR970071712A
KR970071712A KR1019960013889A KR19960013889A KR970071712A KR 970071712 A KR970071712 A KR 970071712A KR 1019960013889 A KR1019960013889 A KR 1019960013889A KR 19960013889 A KR19960013889 A KR 19960013889A KR 970071712 A KR970071712 A KR 970071712A
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KR
South Korea
Prior art keywords
value
servo control
feed forward
command value
hard disk
Prior art date
Application number
KR1019960013889A
Other languages
English (en)
Other versions
KR100267364B1 (ko
Inventor
김관일
Original Assignee
김광호
삼성전자 주식회사
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.)
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960013889A priority Critical patent/KR100267364B1/ko
Priority to US08/841,603 priority patent/US6052252A/en
Priority to JP11166497A priority patent/JP4209480B2/ja
Publication of KR970071712A publication Critical patent/KR970071712A/ko
Application granted granted Critical
Publication of KR100267364B1 publication Critical patent/KR100267364B1/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • 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
    • G11B21/106—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 on disks
    • 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
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Feedback Control In General (AREA)
  • Control Of Position Or Direction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

1. 청구 범위에 기재된 발명이 속한 기술분야
전류콘트롤 에러를 줄이기 위한 적응 피이드 포워드 장치.
2. 발명이 해결하려고 하는 기술적 과제
따라서 본 발명의 목적은 전류 콘트롤 에러(current control error)를 줄이기 위한 적응 피이드 포워드(adaptive feed-forward) 장치를 구현한다.
3. 발명의 해결방법의 요지
본 발명에서는, 트랙탐색시 서보제어 감속구간에서 상기 하드디스크 드라이브 서보제어를 위한 전류명령값에 적응적으로 따라가며 선형적인 기울기를 가지는 적응 피이드 포워드값을 제공하는 피이드 포워드부로 구성한다.
4. 발명의 중요한 용도
하드 디스크 드라이브의 서보제어.

Description

전류콘트롤 에러를 줄이기 위한 적응 피이드 포워드 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 피이드 포워드부를 포함하고 있는 종래의 서보제어장치 블럭 구성도, 제2도는 적응 피이드 포워드부를 포함하고 있는 본 발명의 실시예에 따른 서보 제어장치 블럭 구성도, 제4도는 본 발명의 실시예에 따른 피이드 포워드값을 보여주는 도면.

Claims (3)

  1. 하디 디스크 드라이브에서 서보제어시 전류 콘트롤의 노이즈를 위한 피이드포워드값을 제공하는 피이드 포워드 장치에 있어서, 트랙탐색시 서보제어 감속구간에서 상기 하드디스크 드라이브 서보제어를 위한 전류명령값에 적응적으로 따라가며 선형적인 기울기를 가지는 적응 피이드 포워드값을 제공하는 적응 피이드 포워드부를 가짐을 특징으로 하는 적응피이드 포워드 장치.
  2. 제1항에 있어서, 상기 적응피이드 포워드 값은 하기와 같은 식이 이용되어 계산됨을 특징으로 하는 적응 피이드 포워드 장치.
    여기서, J : 액츄에이터 관성, KT: 토크계수, Arml: 아암길이, Vmax: 모터 최도속도, Imax : 모터에 공급되는 최대전류, △t : 서보 샘플간격, △V : 속도명령값(n)-속도명령값(n-1)
  3. 하드 디스크 드라이브에서 서보제어시 전류 콘트롤의 노이즈를 줄어주기 위한 피이드포워드값을 제공하는 피이드 포워드 장치에 있어서, 상기 서보제어를 위한 속도명령을 내리는 속도명령부와, 상기 속도명령부의 속도명령 충력에서 현재속도명령값과 이전속도 명령값 간의 속도 크기차를 구하여 출력하는 수단과, 상기 속도크기차를 입력으로 소정 피이드포워드 계산에 의거하여 트랙 탐색시 서보제어 감속구간에서 상기 하드디스크 드라이브 서보제어를 위한 전류명령값에 적응적으로 따라가며 선형적인 기울기를 가지는 적응 피이드 포워드값을 출력하는 피이드 포워드 계산부로 구성함을 특징으로 하는 적응 피이드 포워드 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960013889A 1996-04-30 1996-04-30 전류콘트롤 에러를 줄이기 위한 적응피이드 포워드 장치 KR100267364B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960013889A KR100267364B1 (ko) 1996-04-30 1996-04-30 전류콘트롤 에러를 줄이기 위한 적응피이드 포워드 장치
US08/841,603 US6052252A (en) 1996-04-30 1997-04-30 Adaptive feed forward device for reducing current control errors
JP11166497A JP4209480B2 (ja) 1996-04-30 1997-04-30 ハードディスクドライブのフィードフォワード装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960013889A KR100267364B1 (ko) 1996-04-30 1996-04-30 전류콘트롤 에러를 줄이기 위한 적응피이드 포워드 장치

Publications (2)

Publication Number Publication Date
KR970071712A true KR970071712A (ko) 1997-11-07
KR100267364B1 KR100267364B1 (ko) 2000-10-16

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US (1) US6052252A (ko)
JP (1) JP4209480B2 (ko)
KR (1) KR100267364B1 (ko)

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Also Published As

Publication number Publication date
US6052252A (en) 2000-04-18
KR100267364B1 (ko) 2000-10-16
JPH1055637A (ja) 1998-02-24
JP4209480B2 (ja) 2009-01-14

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