KR890000660Y1 - Control circuit for the speed of motors - Google Patents

Control circuit for the speed of motors Download PDF

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Publication number
KR890000660Y1
KR890000660Y1 KR2019850018124U KR850018124U KR890000660Y1 KR 890000660 Y1 KR890000660 Y1 KR 890000660Y1 KR 2019850018124 U KR2019850018124 U KR 2019850018124U KR 850018124 U KR850018124 U KR 850018124U KR 890000660 Y1 KR890000660 Y1 KR 890000660Y1
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South Korea
Prior art keywords
com
motor
control circuit
terminal
speed
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KR2019850018124U
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Korean (ko)
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KR870011427U (en
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곽국연
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주식회사금성사
허신구
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Priority to KR2019850018124U priority Critical patent/KR890000660Y1/en
Publication of KR870011427U publication Critical patent/KR870011427U/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
    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/91—Operational/differential amplifier

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

내용 없음.No content.

Description

모우터의 감속 및 가속 제어회로Motor deceleration and acceleration control circuit

제1도는 종래의 제어회로도.1 is a conventional control circuit diagram.

제2도는 본 고안의 제어회로도.2 is a control circuit diagram of the present invention.

제3도는 제2도 각부의 파형도.3 is a waveform diagram of each part of FIG.

*도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 전류-전압 변환부 2 : 직류분검출부1: current-voltage converter 2: DC powder detector

MM1: 모노멀티 SI : 동기신호 입력단자MM 1 : Mono multi SI: Sync signal input terminal

OP1: 연산증폭기 COM1,COM2: 비교기OP 1 : Operational Amplifiers COM 1, COM 2 : Comparator

R1-R3: 저항 C1C2: 콘덴서R 1 -R 3 : Resistor C 1 C 2 : Capacitor

본 고안은 비디오 디스크 플레이어 등과 같이 기록 매체를 회전시키면서 영상신호를 재생하는 영상재생기기에 있어서,기록매체를 회전시키는 모우터를 정확히 회전시키게 한 모우터의 감속 및 가속 제어회로에 관한 것이다.The present invention relates to a video reproducing apparatus for reproducing an image signal while rotating a recording medium, such as a video disc player, and the like, and to a deceleration and acceleration control circuit for a motor that allows a motor to rotate a recording medium to be rotated correctly.

일반적으로 영상재생기에 있어서는 비디오 디스크등과 같은 기록매체를 정확한 회전속도로 회전시켜야 깨끗한 재생 영상신호를 얻을수 있고,이를 위하여 스핀들 모우터 서어보 제어를 하고 있으나, 이 서어보 제어는 최적 회전 속도를 중심으로 제한된 속도 범위내에서만 효과적으로 동작하므로,진동 및 충격등과 같은 어떤 원인에 의하여 제한된 속도범위내에서 벗어나면,그 속도가 벗어남을 검출하여 강제로 모우터를 감속 또는 가속시켜 그 속도 범위내에서만 회전속도가 변화되게 제어하고 있다.In general, a video player needs to rotate a recording medium such as a video disc at an accurate rotational speed to obtain a clean playback video signal. For this purpose, a spindle motor servo control is performed. However, the servo control is centered on an optimum rotational speed. Since it operates effectively only within the limited speed range, if it is out of the limited speed range for some reason such as vibration or shock, it detects the speed deviation and forcibly decelerates or accelerates the motor and rotates only within the speed range. The speed is controlled to change.

그러나,종래의 제어회로는 모우터의 회전속도를 정확히 제어하지 못하는 결함이 있었다.However, conventional control circuits have a defect in not being able to accurately control the rotation speed of the motor.

즉,종래의 제어회로는 제1도에 도시한 바와같이 모우터에 흐르는 전류 또는 모우터의 회전속도에 따라 일정주파수의 펄스신호등 회전신호를 전류-전압 변환부(1)에서 일정전압으로 변환한 후 비교기(COM1)(COM2)에서 감속단자(VD)및가속단자(VA)의 감속기준전압 및 가속기준전압과 비교하여 감속제어신호 또는 가속제어신호를 출력시켰다.That is, the conventional control circuit converts a rotation signal such as a pulse signal of a constant frequency into a constant voltage in accordance with the current flowing through the motor or the rotation speed of the motor as shown in FIG. Then, the deceleration control signal or the acceleration control signal was output by comparing the deceleration reference voltage and the acceleration reference voltage of the deceleration terminal VD and the acceleration terminal VA in the comparator COM 1 and COM 2 .

그러나,이와같은 종래의 제어회로는 비디오 디스크 플레이어등과 같은 기기에 있어서,영상신호가 기록된 비디오 디스크의 외측과 내측을 트랭킹할때 그 회전속도를 달리해야하나,그 회전속도를 동일하게 제어하므로 비디오 디스크의 외측에서 재생한 영상신호는 늦고,내측에서 재생한 영상신호를 빠르게 되는 결함이 있었다.However, such a conventional control circuit, in a device such as a video disc player, should have different rotational speeds when tracing the outside and the inside of a video disc on which video signals are recorded, but the rotational speed is controlled equally. Therefore, the video signal reproduced on the outside of the video disc is late, and there is a defect that the video signal reproduced on the inside becomes faster.

본 고안은 이와같은 종래의 결함을 감안하여,재생된 영상신호내에 포함되어 있는 동기신호를 이용하여 모우터를 제어함으로써 비디오 디스크를 그 내외측에 따라 정확한 속도로 회전시키게 안출한 것으로,이를 첨부된 제2도 및 제3도에 의하여 상세히 설명하면 다음과 같다.SUMMARY OF THE INVENTION In view of such a conventional deficiency, the present invention is designed to rotate a video disc at an accurate speed along its inner and outer sides by controlling a motor using a synchronization signal included in a reproduced video signal. Referring to Figures 2 and 3 in detail as follows.

제2도에 도시한 바와같이 동기신호 입력단자(SI)를 모노멀티(MM1)의 입력단자(A)에 접속하여 그의 출력단자(Q)를 저항(R2)을 통해 연산증폭기(OP1)의 반전입력단자(-)에 접속함과 아울러 그 접속점을 병렬로 접속된 저항(R3)및 콘덴서(C2)를 통해 연산증폭기(OP1)의 출력측에 접속하여,직류분검출기(2)를 구성하고,그 접속점은 반전및 비반전입력단자(-)(+)에 감속단자(VD)및 가속단자(VA)가 접속된 비교기(COM1)(COM2)의 비반전및 반전입력단자(+)(-)에 공통 접속하여 구성한 것으로, 도면중 미설명부호R1, C1는 모노멀티(MM1)의 시정수를 결정하는 저항 및 콘덴서이고,Vcc는 전원단자이다.As shown in FIG. 2, the synchronization signal input terminal SI is connected to the input terminal A of the mono multi MM 1 , and its output terminal Q is connected to the operational amplifier OP 1 through the resistor R 2 . ) Is connected to the inverting input terminal (-), and the connection point is connected to the output side of the operational amplifier OP 1 through a resistor (R 3 ) and a capacitor (C 2 ) connected in parallel. And the connection point is the non-inverting and inverting input of the comparator (COM 1 ) (COM 2 ), in which the deceleration terminal (VD) and the acceleration terminal (VA) are connected to the inverting and non-inverting input terminals (-) (+). terminal (+) (-) connected in common to be configured, the drawing reference numeral R 1, C 1 of the resistor and capacitor is to determine the time constant of the mono-multi (MM 1), Vcc is a power supply terminal.

이와같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effects of the present invention configured in this way in detail as follows.

전원단자(Vcc)에 전원이 인가되고,영상재생기기를 동작시켜 동기신호입력단자(SI)에 제3(a)도에 도시한 바와같이 동기신호가 입력되면,그 동기신호는 모노멀티(MM1)의 입력되면, 모노멀티(MM1)의 출력단자(Q)에는 저항(R1)및 콘덴서(C1)의 시정수에 의해 제3도의제3(b)도에 일정폭의 펄스신호가 출력되어 직류분검출기(2)의 저항(R2)을 통해 연산증폭기(OP1)의 반전입력단자(-)에 인가되므로,연산증폭기(OP1)의 출력측에는 일정직류 전압이 출력되어 비교기(COM1)(COM2)의 비반전 및 반전입력단자(+)(-)에 인가된다.When power is supplied to the power supply terminal Vcc, and the video reproducing apparatus is operated to input the synchronization signal to the synchronization signal input terminal SI as shown in FIG. 3 (a), the synchronization signal is mono-multi (MM). When 1 ) is input, the output signal Q of the mono multi MM 1 has a predetermined width pulse signal in FIG. 3 (b) of FIG. 3 by the time constants of the resistor R 1 and the capacitor C 1 . Is outputted and applied to the inverting input terminal (-) of the operational amplifier OP 1 through the resistor R 2 of the DC powder detector 2, so that a constant DC voltage is output to the output side of the operational amplifier OP 1 . It is applied to the non-inverting and inverting input terminals (+) (-) of (COM 1 ) (COM 2 ).

여기서,모우터가 정확히 회전되어 영상신호가 정확한 속도로 재생됨과 아울로 동기신호의 주기가 정확하고 직류분검출기(2)의 출력직류전압이 감속단자(VD)의 기준전압 보다 작고,가속단자(VA)의 기준전압보다 크게하면,비교기(COM1)(COM2)의 출력측에는 모두 저전위가 출력되어 모우터를 계속 일정속도로 회전시킨다.Here, the motor is rotated correctly so that the image signal is reproduced at the correct speed. In addition, the period of the synchronization signal is correct, and the output DC voltage of the DC part detector 2 is smaller than the reference voltage of the deceleration terminal VD. If it is larger than the reference voltage of VA), a low potential is output to the output side of the comparator COM 1 and COM 2 to continuously rotate the motor at a constant speed.

그리고,상기에서 모우터의 회전속도가 느려 동기신호 입력단자(SI)에 제3도의 제3(c)도에 도시한 바와같이 동기신호가 천천이 입력되면,모노멀티(MM1)의 출력단자(Q)에는 제3도의 제3(d)도에 도시한 바와같이 출력되어 직류분검출기(2)의 출력 직류전압이 낮아지므로 비교기(COM2)의 반전입력단자(-)에 인가되는 전압이 비반정입력단자(+)에 인가되는 가속되는 가속단자(VA)의 가속전압보다 낮아 그의 출력측에는 고전위가 출력되고 이에따라 모우터를 가속시켜 빨리 회전시키게 된다.In addition, when the rotation speed of the motor is slow and the synchronous signal is slowly input to the synchronous signal input terminal SI as shown in FIG. 3 (c) of FIG. 3, the output terminal of the mono multi (MM 1 ). In (Q), as shown in FIG. 3 (d) of FIG. 3, the output DC voltage of the DC powder detector 2 is lowered, so that the voltage applied to the inverting input terminal (-) of the comparator COM 2 It is lower than the acceleration voltage of the accelerated acceleration terminal VA applied to the non-counting input terminal (+), the high potential is output to the output side thereof, thereby accelerating the motor to rotate quickly.

또한,상기에서 모우터의 회전속도가 빨라 동기신호입력 단자(SI)에 제3도의 (마)에 도시한 바와같이 동기신호가 빨리 입력되면, 모노멀티(MM1)의 출력단자(Q)에는 제3도의제3(d)도에 시한 바와같이 출력되어 직류분검출기(2)의 출력직류전압이 높아지므로 비교기(COM1)의 비반전입력단자(+)에 인가되는 전압이 반전입력단자(-)에 인가되는 감속단자(VD)의 감속전압보다 낮아 그의 출력측에는 고전위가 출력되고 이에따라 모우터를 감속시켜 천천이 회전시키게 된다.In addition, when the synchronizing signal is quickly input to the synchronizing signal input terminal SI as shown in FIG. 3 (e) because the rotation speed of the motor is high, the output terminal Q of the mono multi (MM 1 ) is provided. As shown in FIG. 3 (d) of FIG. 3, the output DC voltage of the DC powder detector 2 is increased, so that the voltage applied to the non-inverting input terminal (+) of the comparator COM 1 is the inverting input terminal ( -) Is lower than the deceleration voltage of the deceleration terminal (VD) applied to-) and the high potential is output to its output side, and accordingly the motor is decelerated to rotate the heavens.

이상에서 설명한 바와같이 본 고안은 재생동기신호를 이용하여 모우터를 제어하므로 비디오 디스크의 내ㆍ외측의 트래킹에 관계없이 재생 영상 신호에 따라 모우터를 일정하게 회전시키게 되는 효과가 있다.As described above, the present invention controls the motor using the reproduction synchronization signal, and thus the motor is constantly rotated according to the reproduction video signal regardless of the tracking of the inside and the outside of the video disc.

Claims (1)

비교기(COM1,COM2)로 구성된 모우터 제어회로에 있어서,입력단자(A)에 동기신호 입력단자(SI)가 접속된 모노멀티(MM1)의 출력단자(Q)를 저항(R2)을 통해 연산증폭기(OP1)의 반전입력단자(-)에 접속함과 아울러 그 접속점을 병렬접속된 저항(R3)및 콘덴서(C2)를 통해 연산증폭기(OP1)의 출력측 및 상기비교기(COM1)(COM2)의 비반전및 반전입력단자(+)(-)에 접속하여 구성함을 특징으로 하는 모우터의 감속및 가속제어회로.In the motor control circuit composed of the comparators (COM 1 , COM 2 ), the output terminal (Q) of the mono multi (MM 1 ) having the synchronization signal input terminal (SI) connected to the input terminal (A) is a resistor (R 2). ) Is connected to the inverting input terminal (-) of the operational amplifier (OP 1 ), and the connection point is connected to the output side of the operational amplifier (OP 1 ) through the resistor (R 3 ) and the capacitor (C 2 ) connected in parallel. Motor deceleration and acceleration control circuit, characterized in that it is connected to the non-inverting and inverting input terminals (+) (-) of the comparator (COM 1 ) (COM 2 ).
KR2019850018124U 1985-12-30 1985-12-30 Control circuit for the speed of motors KR890000660Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850018124U KR890000660Y1 (en) 1985-12-30 1985-12-30 Control circuit for the speed of motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850018124U KR890000660Y1 (en) 1985-12-30 1985-12-30 Control circuit for the speed of motors

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KR870011427U KR870011427U (en) 1987-07-16
KR890000660Y1 true KR890000660Y1 (en) 1989-03-11

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