KR870002318Y1 - Direction transition control circuit of a capstan motor - Google Patents

Direction transition control circuit of a capstan motor Download PDF

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Publication number
KR870002318Y1
KR870002318Y1 KR2019840014206U KR840014206U KR870002318Y1 KR 870002318 Y1 KR870002318 Y1 KR 870002318Y1 KR 2019840014206 U KR2019840014206 U KR 2019840014206U KR 840014206 U KR840014206 U KR 840014206U KR 870002318 Y1 KR870002318 Y1 KR 870002318Y1
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South Korea
Prior art keywords
capstan motor
magnetic tape
motor
control circuit
signal
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KR2019840014206U
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Korean (ko)
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KR860008619U (en
Inventor
유원영
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삼성전자 주식회사
정재은
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Priority to KR2019840014206U priority Critical patent/KR870002318Y1/en
Publication of KR860008619U publication Critical patent/KR860008619U/en
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Publication of KR870002318Y1 publication Critical patent/KR870002318Y1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/26—Driving record carriers by members acting directly or indirectly thereon
    • G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • G11B15/08—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing

Abstract

내용 없음.No content.

Description

캡스턴모우터의 방향전환 제어회로Direction control circuit of capstan motor

제 1 도는 본 고안의 회로도이다.1 is a circuit diagram of the present invention.

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

1 : 원칩마이콤 2 : 모우터구동증폭기1: One Chip Microcomputer 2: Motor Drive Amplifier

3 : 캡스턴모우터 4 : 자기테이프3: capstan motor 4: magnetic tape

AD1, AD2: 앤드게이트 PS1, PS2: 포토센서AD 1 , AD 2 : Endgate PS 1 , PS 2 : Photosensor

LED1, LED2: 발광다이오드 PT1, PT2: 포토트랜지스터LED 1 , LED 2 : Light emitting diodes PT 1 , PT 2 : Phototransistor

본 고안은 각동작모우드시 자기테이프의 시작부분과 종료부분에 형성된 감지부분을 포토센서로 감지함에 따라 회전중인 캡스턴모우터를 자동적으로 정지시켜주거나 역방향 또는 정방향으로 회전되도록된 캡스턴모우터의 방향전환제어회로에 관한 것이다.The present design automatically stops the rotating capstan motor or switches the direction of the capstan motor which is rotated in the reverse or forward direction by detecting the sensing part formed at the beginning and the end of the magnetic tape in each motion mode by the photosensor. It relates to a control circuit.

일반적으로 자기테이프에다 데이터를 기록하거나 재생하게 되는 카셋트테이프레코더 및 자기기록재생장치에서는, 상기테이프에 기록된 데이터를 재생하거나 기타 원하는 부분까지 빨리회전시켜주기 위해 각동작모우드를 설정하게 되는데, 이때 사용자가 상기 재생장치를 재생또는 빨리감기모우드로 동작시켜놓으면 자기테이프가 정방향으로 동작하다가 끝나는 부분에 도달하게 되어 끝나는 부분을 감지하는 센서가 동작되고, 이로부터 마이콤에서는 각동작모우드에 해당된 신호가 송출되어 캡스턴모우터를 멈추게하거나 또는 역방향으로 회전하게 하여 자기테이프의 시작상태로 되돌려 보낸후 캡스턴모우터의 회전을 정지시켜 주도록 되어 있다.In general, cassette tape recorders and magnetic recording and reproducing apparatuses which record or reproduce data on magnetic tapes, each operation mode is set to quickly rotate the data recorded on the tape or to other desired parts. When the playback device is operated as a playback or fast-forward mode, the magnetic tape operates in the forward direction and reaches the end portion, and a sensor for detecting the end portion is operated, and the signal corresponding to each operation mode is transmitted from the micom. The capstan motor is stopped or rotated in the reverse direction to return to the start state of the magnetic tape, and then the rotation of the capstan motor is stopped.

이에 본 고안은 상기와 같은 사정을 감안해서 안출된 것으로, 자기테이프의 시작되는 부분과 끝나는 부분에 있는 포토센서의 동작상태에 따라 트랜지스터를 턴 온1오프시켜 앤드게이트를 통해 모우터구동 증폭기로 공급하고, 이어 각 동작모우드에 따른 원칩마이콤의 출력신호와 포토센서의 동작상태에 따라 모우터구동 증폭기가 동작되어 캡스턴모우터의 회전방향(정방향 또는 역방향)을 자동제어하도록 된 캡스턴모우터의 방향전환 제어회로를 제공함에 그 목적이 있다.Therefore, the present invention was conceived in view of the above circumstances, and according to the operation state of the photosensor at the beginning and the end of the magnetic tape, the transistor is turned on and off and supplied to the motor driving amplifier through the AND gate. Then, the motor driving amplifier is operated according to the output signal of the one chip microcomputer and the operation state of the photosensor according to each operation mode, and the direction of the capstan motor is automatically controlled to control the rotation direction (forward or reverse) of the capstan motor. The purpose is to provide a control circuit.

이하 본 고안의 구성 및 작용, 효과를 예시도면에 의거하여 상세히 설명한다.Hereinafter, the configuration, operation, and effects of the present invention will be described in detail with reference to the accompanying drawings.

본 고안은 원칩마이콤(1)의 출력단자(A)(B)에 직렬로 연결된 저항(R1)(R2)과 앤드게이트(AD1)(AD2)및 다이오드(D1)를 거쳐 모우터구동증폭기(2)의 입력단자(C)(D)가 각각 연결되고, 상기앤드게이트(AD1)에는 직병렬로 연결된 저항(R3-R6)과 트랜지스터(TR1)(TR3)및 자기테이프의 끝부분을 감지하는 포토센서(PS1)가, 상기앤드 게이트(AD2)에는 직병렬로 연결된 저항(R7)(R8)과 트랜지스터(TR2)및 자기테이프의 시작부분을 감지하는 포토센서(PS2)가 각각 연결되며, 상기 모우터구동증폭기(2)에는 캡스모턴우터(3)가 연결된 구조로 되어있다.The present invention is collected through a resistor (R 1 ) (R 2 ), an AND gate (AD 1 ) (AD 2 ), and a diode (D 1 ) connected in series with the output terminals (A) (B) of the one-chip microcomputer (1). emitter is connected to the input terminal (C) (D) of the driving amplifier (2), respectively, said aND gate (AD 1), the resistor connected in series-parallel (R 3 -R 6) and the transistor (TR 1) (TR 3) And a photo sensor PS 1 for detecting an end portion of the magnetic tape, and a resistor R 7 (R 8 ), a transistor TR 2 , and a start portion of the magnetic tape connected in series and parallel to the end gate AD 2 . The photo sensor (PS 2 ) for detecting the is connected, respectively, the motor driving amplifier (2) has a structure that is connected to the caps motor turner (3).

미설명 부호 4는 자기테이프, LED1과 LED2는 발광다이오드, PT1과 PT2는 포토트랜지스터를 나타낸다Reference numeral 4 denotes a magnetic tape, LED 1 and LED 2 indicate a light emitting diode, and PT 1 and PT 2 indicate a phototransistor.

제 1 도는 상기와 같이 구성되는 본 고안의 회로도로써, 카셋트테이프레코더나 자기기록 재생장치의 전체동작을 통제하는 원칩마이콤(1)의 출력(A)(B)신호와 자기테이프(4)의 시작및 종료부분을 감지하는 포토센서(PS1)(PS2)의 동작에 의해 앤드게이트(AD1)(AD2)의 출력신호가 모우터구동증폭기(2)를 거쳐 캡스턴모우터(3)에 공급되어 회전방향을 좌우하게 된다. 즉 원칩마이콤(1)은 표 1 과 같이 캡스턴모우터(3)의 회전방향을 감지하여 그 출력단자(A)(B)로 다음과 같은 신호를 송출하게 된다.1 is a circuit diagram of the present invention constructed as described above, in which the output (A) (B) signal of the one-chip microcom (1) and the start of the magnetic tape (4) controlling the entire operation of the cassette tape recorder or the magnetic recording / reproducing apparatus And an output signal of the AND gates AD 1 and AD 2 through the motor driving amplifier 2 to the capstan motor 3 by the operation of the photosensors PS 1 and PS 2 detecting the end portion. It is supplied to influence the direction of rotation. That is, the one chip microcomputer 1 detects the rotation direction of the capstan motor 3 as shown in Table 1 and transmits the following signals to the output terminals A and B.

[표 1]TABLE 1

캡스턴모우터(3)의 회전방향과 원칩마이콤(1)의 신호관계Signal relationship between the rotation direction of the capstan motor 3 and the one-chip microcomputer 1

먼저, 사용자에 의해 재생모우드나 빨리감기모우드를 선택하게 되면 전체동작을 통제하면서 상기캡스턴모우터(3)의 회전방향을 감지하는 원칩마이콤(1)은 그출력단자(A)(B)로 각각 하이상태의 신호와 로우상태신호를 송출시켜 저항(R1), (R2)을 거쳐 앤드게이트(AD1)(AD2)의 입력단에 공급하게 되고, 이어 자기테이프(4)의 시작부분에 형성된 감지부분이 접촉되므로 포토센서(PS2)의 발광다이오드(LED2)가 통전되어 포토트랜지스터(PT2)가 턴온되며, 그에따라 트랜지스터(TR2)가 턴온되므로 앤드게이트(AD2)의 다른입력단에 로우상태의 신호가 입력되게 된다. 이때 자기테이프(4)의 끝부분에 형성된 감지부분을 감지하는 포토센서(PS1)가 동작되지 않으므로 트랜지스터(TR1)(TR3)가 턴오프되어 앤드게이트(AD1)의 다른입력단에 하이상태의 신호가 공급되게 된다.First, when the user selects the playback mode or the fast-winding mode, the one-chip microcomputer 1 for detecting the rotational direction of the capstan motor 3 while controlling the overall operation is connected to the output terminals A and B, respectively. The high state signal and the low state signal are sent and supplied to the input terminals of the AND gates AD 1 and AD 2 through the resistors R 1 and R 2 , and then to the beginning of the magnetic tape 4. since the formed detection parts contact the photo sensor (PS 2) light emitting diode (LED 2) is energized phototransistor (PT 2) a is turned on, since the transistor (TR 2) is turned on and accordingly the aND gate (AD 2) the other of the The low signal is input to the input terminal. At this time, since the photosensor PS 1 that detects the sensing portion formed at the end of the magnetic tape 4 is not operated, the transistors TR 1 and TR 3 are turned off to high to the other input terminal of the AND gate AD 1 . The status signal is supplied.

따라서, 앤드게이트(AD1)의 출력신호는 하이상태로, 다른 앤드게이트(AD2)의 출력신호는 로우상태로 모우터구동증폭기(2)의 입력단자(C)(D)에 각각 공급되고, 이로부터 상기 신호들이 증폭되어 모우터구동증폭기(2)의 출력단에 연결된 캡스턴모우터(3)에 공급되므로 정방향으로 회전되게 된다. 이어 원칩마이콤(1)이 상기캡스턴모우터(3)의 정방향회전을 감지하고 있으므로 그 출력단자(A)(B)로 하이상태와 로우상태의 신호를 송출시켜 앤드게이트(AD1)(AD2)의 한 입력단에 공급시켜주게 되고, 이때 자기테이프(4)의 시작부분을 지나 포토센서(PS2)가 동작되지 않다해도 원칩마이콤(1)의 출력(B)신호가 로우상태로 모우터구동증폭기(2)의 입력단자(D)에 공급되므로 상기캡스턴모우터(3)는 계속 정방향으로 회전하게 된다.Therefore, the output signal of the AND gate AD 1 is high and the output signal of the other AND gate AD 2 is supplied to the input terminals C and D of the motor drive amplifier 2, respectively. From this, the signals are amplified and supplied to the capstan motor 3 connected to the output terminal of the motor driving amplifier 2 so as to rotate in the forward direction. Subsequently, since the one-chip microcomputer 1 senses the forward rotation of the capstan motor 3, the output signals A and B are sent to the output terminals A and B so that the AND gate AD 1 (AD 2 ). At this time, the output B signal of the one-chip microcomputer 1 is driven low even though the photo sensor PS 2 is not operated past the start of the magnetic tape 4. The capstan motor 3 continues to rotate in the forward direction because it is supplied to the input terminal D of the amplifier 2.

이렇게 캡스턴모우터(3)가 정방향으로 회전하게 되면 자기테이프(4)는 정방향으로 진행되고, 이렇게 자기테이프(4)가 정방향으로 진행하다가 자기테이프(4)의 끝부분에 있는 감지부분에 도달하게 되면 자기테이프(4)가 접점에 접촉되므로 포토센서(PS1)가 동작되어 발광다이오드(LED1)에 의해 포토트랜지스터(PT1)가 턴온되어 트랜지스터(TR1)도 턴온된다. 그에따라 앤드게이트(AD1)의 입력신호가 로우상태로 변경되어 앤드게이트(AD1)의 출력신호는 하이상태에서 로우상태로 변경되어 모우터구동증폭기(2)의 입력단자(C)에 공급되게 되고, 또 상기트랜지스터(TR1)의 콜렉터가 로우상태이므로 트랜지스터(TR3)가 턴온되어 하이상태가 신호가 다이오드(D2)를 통해 모우터구동증폭기(2)의 입력단자(D)에 입력되므로 정방향으로 회전되었던 캡스턴모우터(3)는 역방향으로 회전하게 된다.When the capstan motor 3 rotates in the forward direction, the magnetic tape 4 proceeds in the forward direction. Thus, the magnetic tape 4 proceeds in the forward direction and reaches the sensing portion at the end of the magnetic tape 4. When the magnetic tape 4 is in contact with the contact point, the photo sensor PS 1 is operated so that the phototransistor PT 1 is turned on by the light emitting diode LED 1 and the transistor TR 1 is also turned on. Accordingly, the input signal of the AND gate AD 1 is changed to the low state, and the output signal of the AND gate AD 1 is changed from the high state to the low state, and is supplied to the input terminal C of the motor driving amplifier 2. In addition, since the collector of the transistor TR 1 is in a low state, the transistor TR 3 is turned on and a high state is transmitted to the input terminal D of the motor driving amplifier 2 through the diode D 2 . Since the capstan motor 3 that has been rotated in the forward direction is rotated in the reverse direction.

이어 캡스턴모우터(3)가 역방향으로 회전하게되면 포토센서(PS1)가 동작되지 않으므로 트랜지스터(TR1-TR3)가 턴오프되고, 이에 캡스턴모우터(3)의 역회전을 감지한 원칩마이콤(1)에서의 출력(A)(B)신호가 표 1 에서 처럼 로우상태와 하이상태의 신호가 저항(R1)(R2)을 통해 앤드게이트(AD1)(AD2)의 출력 신호는 각각 로우상태와 하이상태로서 모우터구동증폭기(2)의 입력단자(C)(D)에 입력되게 된다.Subsequently, when the capstan motor 3 rotates in the reverse direction, since the photosensor PS 1 is not operated, the transistors TR 1 to TR 3 are turned off, and thus the one chip detecting the reverse rotation of the capstan motor 3 . The output (A) and (B) signals from the microcomputer 1 are the low and high signals through the resistors R 1 and R 2 and output from the AND gates AD 1 and AD 2 as shown in Table 1. The signals are input to the input terminals C and D of the motor drive amplifier 2 as low and high states, respectively.

그러므로, 캡스턴모우터(3)는 역방향으로 계속 회전하게 되고, 그후로 자기테이프(4)가 역방향으로 회전하여 시작되는 감지부분에 도달하게 되면 자기테이프(4)가 접점에 접촉되므로 포토센서(PS2)가 동작되어 포토트랜지스터(PT2)가 턴온되며, 이로부터 트랜지스터(TR2)가 턴온되어 앤드게이트(AD2)의 다른입력단에 로우상태의 신호가 입력되어 로우상태의 출력신호는 다이오드(D1)를 통해 모우터구동증폭기(2)의 입력단자(D)로 공급되므로 입력단자(C)(D)는 모두 로우상태로서 입력된다.Therefore, the capstan motor 3 continues to rotate in the reverse direction. After that, when the magnetic tape 4 reaches the sensing portion which starts by rotating in the reverse direction, the magnetic tape 4 contacts the contact, so that the photo sensor PS 2 ) And the phototransistor PT 2 is turned on. From this, the transistor TR 2 is turned on so that the low signal is input to the other input terminal of the AND gate AD 2 so that the low output signal is diode D. Since 1 ) is supplied to the input terminal D of the motor driving amplifier 2, the input terminals C and D are all input as a low state.

따라서, 로우상태인 신호가 모우터구동증폭기(2)의 입력단자 (C)(D)에 공급되므로 캡스턴모우터(3)는 표 1 에 나타난 것처럼 자동정지하게 되고, 이러한 상태를 감지한 원칩마이콤(1)은 그출력단자(A)(B)로 모두 로우상태의 신호를 송출하게 된다.Therefore, since the signal in the low state is supplied to the input terminal (C) (D) of the motor driving amplifier 2, the capstan motor 3 automatically stops as shown in Table 1, and the one-chip microcomputer that senses this state. (1) transmits a low state signal to its output terminals (A) and (B).

상기한 바와같이 본 고안은 카셋트데크에 있는 캡스턴 모우터의 회전방향(정방향또는 역방향)을 자동으로 제어하기 위한 것으로, 원칩마이콤의 출력단자로 송출되는 신호와 자기테이프의 시작되는 부분과 끝나는 부분에 포토센서의 동작상태에 따른 신호를 모우터구동증폭기에서 증폭시켜 캡스턴모우터를 정지또는 정역방향으로 구동시킬 수 있는 장점이 있다.As described above, the present invention is to automatically control the rotation direction (forward or reverse) of the capstan motor in the cassette deck, and the signal transmitted to the output terminal of the one chip microcom and the beginning and end of the magnetic tape are By amplifying the signal according to the operation state of the photosensor in the motor driving amplifier has the advantage that can drive the capstan motor in the stop or forward and reverse directions.

Claims (1)

원칩마이콤(1)의 출력단자(A)(B)에 직렬로 연결된 저항(R1)(R2)과 앤드게이트(AD1)(AD2)및 다이오드(D1)를 거쳐 모우터구동증폭기(2)의 입력단자(C)(D)가 연결되고, 상기앤드게이트(AD1)에는 직병렬로 연결된 저항(R3-R6)과 트랜지스터(TR1)(TR3)및 자기테이프의 끝부분을 감지하는포토센서(PS1)가, 앤드게이트(AD2)에는 직병렬의 저항(R7)(R8)과 트랜지스터(TR2)및 자기테이프의 시작부분을 감지하는 포토센서(PS2)가 각각 연결되며, 상기모우터구동증폭기(2)에는 캡스턴모우터(3)가 연결된 것을 특징으로 하는 포토센서를 이용한 카셋트데크의 캡스턴모우터의 방향전환제어회로.Motor drive amplifier via resistor R 1 (R 2 ) and end gate (AD 1 ) (AD 2 ) and diode (D 1 ) connected in series to output terminal (A) (B) of one-chip microcomputer (1) An input terminal (C) (D) of (2) is connected, and the resistor (R 3- R 6 ) and transistor (TR 1 ) (TR 3 ) and magnetic tape connected in series and parallel to the end gate (AD 1 ). The photo sensor PS 1 for detecting an end portion, and the end gate AD 2 has a photo sensor for detecting the beginning of the parallel (R 7 ) (R 8 ) and the transistor (TR 2 ) and the magnetic tape. PS 2 ) are connected to each other, the motor drive amplifier (2) the capstan motor of the cassette deck using the photosensor, characterized in that the capstan motor (3) is connected to the direction control circuit.
KR2019840014206U 1984-12-28 1984-12-28 Direction transition control circuit of a capstan motor KR870002318Y1 (en)

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KR2019840014206U KR870002318Y1 (en) 1984-12-28 1984-12-28 Direction transition control circuit of a capstan motor

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KR860008619U KR860008619U (en) 1986-07-28
KR870002318Y1 true KR870002318Y1 (en) 1987-06-30

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