KR970003032A - Driving state detection circuit of spindle motor in disk drive - Google Patents

Driving state detection circuit of spindle motor in disk drive Download PDF

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Publication number
KR970003032A
KR970003032A KR1019950017615A KR19950017615A KR970003032A KR 970003032 A KR970003032 A KR 970003032A KR 1019950017615 A KR1019950017615 A KR 1019950017615A KR 19950017615 A KR19950017615 A KR 19950017615A KR 970003032 A KR970003032 A KR 970003032A
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KR
South Korea
Prior art keywords
driving state
spindle motor
phase
signal
signals
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Application number
KR1019950017615A
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Korean (ko)
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KR100337840B1 (en
Inventor
손병국
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김광호
삼성전자 주식회사
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Priority to KR1019950017615A priority Critical patent/KR100337840B1/en
Publication of KR970003032A publication Critical patent/KR970003032A/en
Application granted granted Critical
Publication of KR100337840B1 publication Critical patent/KR100337840B1/en

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    • 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
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive

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  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

회전하는 디스크상에 디지탈정보를 기록/독출하는 디스크 구동장치에서 디스크를 회전시키기 위한 스핀들모터의 구동상태를 감지하는 회로에 관한 것이다.The present invention relates to a circuit for detecting a driving state of a spindle motor for rotating a disk in a disk driving apparatus for recording / reading digital information on a rotating disk.

2. 발명이 해결하고자 하는 기술적 과제2. Technical problem to be solved by the invention

실제적인 스핀들 모터의 구동상태를 정확하게 감지할 수 있는 스핀들 모터 구동상태 감지회로를 제공한다.It provides a spindle motor driving state detection circuit that can accurately detect the actual driving state of the spindle motor.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

스핀들 모터의 회전자의 회전에 따라 발생하는 세개의 위장신호들중 적어도 두 위상신호간의 위상차를 검출하여 스핀들 모터가 정상 구동상태일 경우 두 위상신호간의 주기적인 위상차에 대응하여 주기적인 펄스가 나타나는 감지신호를 발생한다.Detects the phase difference between at least two phase signals among the three camouflage signals generated by the rotation of the rotor of the spindle motor, and detects the periodic pulses corresponding to the periodic phase difference between the two phase signals when the spindle motor is in the normal driving state. Generate a signal.

4. 발명의 중요한 용도4. Important uses of the invention

디스크 구동장치에서 스핀들 모터의 구동상태를 검출하는데 이용한다.It is used to detect the driving state of the spindle motor in the disk drive unit.

Description

디스크 구동장치에서 스핀들모터의 구동상태 감지회로Driving state detection circuit of spindle motor in disk drive

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 스핀들모터의 구동상태 감지회로도, 제2A도 및 제2B도는 제1도의 각 부분의 동작 파형도.1 is a driving state sensing circuit diagram of a spindle motor according to the present invention, and FIGS. 2A and 2B are operation waveform diagrams of respective parts of FIG.

Claims (5)

디스크 구동장치에서 디스크를 회전시키기 위한 스핀들 모터의 구동상태를 감지하는 회로에 있어서, 하나의 고정자와 회전자를 가지며 상기 고정자에 설치되어 상기 회전자에 착자되어 있는 다수의 자극들로부터 제공되는 자속을 검출함으로써 고정자와 회전자의 상대위치를 검출하여 그에 따른 세개의 위상신호와 하나의 기준위상신호를 발생하는 스핀들 모터와, 상기 세개의 위상신호들중 적어도 두 위상신호간의 위상차를 검출하여 상기 스핀들 모터가 정상 구동상태일 경우 두 위상신호간의 주기적인 위상차에 대응하여 주기적인 펄스가 나타나는 감지신호를 발생하는 구동상태 감지수단을 구비하는 것을 특징으로 하는 스핀들 모터의 구동상태 감지회로.A circuit for sensing a driving state of a spindle motor for rotating a disk in a disk drive, the circuit comprising: a magnetic flux provided from a plurality of magnetic poles having one stator and a rotor installed on the stator and magnetized to the rotor; By detecting the relative position of the stator and the rotor to generate three phase signals and one reference phase signal, and detecting a phase difference between at least two phase signals of the three phase signals. And a driving state sensing means for generating a sensing signal in which a periodic pulse appears in response to a periodic phase difference between two phase signals when is a normal driving state. 제1항에 있어서, 상기 구동상태 감지수단이, 상기 세개의 위상신호들중 하나의 위상신호와 상기 기준위상신호의 레벨을 비교하여 해당 위상신호를 구형파로 변환하는 제1비교수단과, 상기 세개의 위상신호들중 다른 하나의 위상신호와 상기 기준 위상신호의 레벨을 비교하여 해당 위상신호를 구형파로 변환하는 제2비교수단과, 상기 제1, 제2비교수단으로부터 출력되는 구형파신호의 위상을 비교하여 두 신호간의 위상차에 따라 주기적인 펄스가 나타나는 감지신호를 발생하는 위상차 검출수단을 구비하는 것을 특징으로 하는 스핀들 모터의 구동상태 감지회로.2. The apparatus of claim 1, wherein the driving state detecting means comprises: first comparing means for comparing a level of one of the three phase signals with a level of the reference phase signal and converting the corresponding phase signal into a square wave; Comparing the level of the other one of the phase signals with the reference phase signal with the second comparison means for converting the phase signal into a square wave, and the phase of the square wave signal output from the first and second comparison means. And a phase difference detecting means for generating a detection signal in which periodic pulses appear in accordance with the phase difference between the two signals. 제2항에 있어서, 상기 위상차 검출수단이 상기 제1, 제2비교수단으로부터 출력되는 구형파신호를 논리곱하는 앤드게이트인 것을 특징으로 하는 스핀들 모터의 구동상태 감지회로.3. The drive state detection circuit of claim 2, wherein the phase difference detecting means is an AND gate for ANDing the square wave signals output from the first and second comparing means. 제2항에 있어서, 상기 감지회로에 의해 상기 스핀들 모터의 정상 구동상태 여부를 검사하여 상기 디스크에 대한 엑세스를 제어하는 제어수단을 더 구비하는 것을 특징으로 하는 스핀들 모터의 구동상태 감지회로.3. The drive state detection circuit of claim 2, further comprising control means for controlling the access to the disk by checking whether the spindle motor is in a normal driving state by the detection circuit. 제4항에 있어서, 상기 제어수단이 상기 감지신호에 상기 주기적인 펄스가 나타날 경우에는 상기 스핀들 모터가 정상 구동상태인 것으로 판단하고, 상기 주기적인 펄스가 나타나지 않을 경우에는 상기 스핀들 모터가 정상 구동상태가 아닌 것으로 판단하는 것을 특징으로 하는 스핀들 모터의 구동상태 감지회로.5. The method of claim 4, wherein the control means determines that the spindle motor is in a normal driving state when the periodic pulse appears in the detection signal, and wherein the spindle motor is in a normal driving state when the periodic pulse does not appear. Driving state detection circuit of the spindle motor, characterized in that it is determined to be not. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950017615A 1995-06-26 1995-06-26 Circuit for sensing driving state of spindle motor in disc driving system KR100337840B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950017615A KR100337840B1 (en) 1995-06-26 1995-06-26 Circuit for sensing driving state of spindle motor in disc driving system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950017615A KR100337840B1 (en) 1995-06-26 1995-06-26 Circuit for sensing driving state of spindle motor in disc driving system

Publications (2)

Publication Number Publication Date
KR970003032A true KR970003032A (en) 1997-01-28
KR100337840B1 KR100337840B1 (en) 2002-10-25

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KR100337840B1 (en) 2002-10-25

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