KR870001261Y1 - False play preventing circuit - Google Patents

False play preventing circuit Download PDF

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Publication number
KR870001261Y1
KR870001261Y1 KR2019850003059U KR850003059U KR870001261Y1 KR 870001261 Y1 KR870001261 Y1 KR 870001261Y1 KR 2019850003059 U KR2019850003059 U KR 2019850003059U KR 850003059 U KR850003059 U KR 850003059U KR 870001261 Y1 KR870001261 Y1 KR 870001261Y1
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KR
South Korea
Prior art keywords
circuit
switch
capacitor
power
timer
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KR2019850003059U
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Korean (ko)
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KR860012403U (en
Inventor
한기완
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삼성전자주식회사
정재은
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Priority to KR2019850003059U priority Critical patent/KR870001261Y1/en
Publication of KR860012403U publication Critical patent/KR860012403U/en
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Publication of KR870001261Y1 publication Critical patent/KR870001261Y1/en

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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/02Control of operating function, e.g. switching from recording to reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00Driving, 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
    • G11B15/18Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel

Abstract

내용 없음.No content.

Description

녹음기용 타이머 스탠드 바이-스위치의 오동작 방지회로Malfunction prevention circuit of timer stand bi-switch for recorder

제1도는 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 : 제어회로 2 : 스탠드 바이회로1: control circuit 2: stand-by circuit

PT : 전원 변압기 D1-D6: 다이오드PT: power transformer D 1 -D 6 : diode

C1-C7: 콘덴서 Q1-Q6: 트랜지스터C 1 -C 7 : Capacitor Q 1 -Q 6 : Transistor

SW1, SW2: 스탠드바이-스위치 P/B SW : 재생스위치SW 1 , SW 2 : Standby switch P / B SW: Playback switch

REC SW : 녹음스위치 G1-G4: 노아게이트REC SW: Recording switch G 1 -G 4 : Noah gate

A, B : 접속점A, B: connection point

본 고안은 일반적인 녹음기에 사용되는 타이머 스탠드바이-스위치의 오동작을 방지하기 위한 전자회로에 관한 것이다.The present invention relates to an electronic circuit for preventing a malfunction of a timer standby switch used in a general recorder.

종래의 타이머 스탠드바이 회로는 사용자의 선택에 따라 예약기억시켜진 시각에 타이머로부터 전원을 공급받아 녹음 및 재생을 자동으로 할 수 있도록 되어 있다.In the conventional timer standby circuit, recording and playback are automatically performed by receiving power from a timer at a time reserved by a user.

이러한 경우에는 타이머 스탠드바이-스위치는 외부 타이머를 사용할 경우에만 작동되도록 하고, 그 위는 오프상태로 있게 되어야 정상이지만 사용자의 실수로 인하여 계속 온 상태로 있는 수가 있다.In this case, the timer standby switch should only be activated when an external timer is used, and it must be turned off above normal, but it may remain on due to user error.

따라서 녹음 중에 사용자의 잘못으로 스위치가 재생모우드로 전환되면 녹음이 중단될 뿐만 아니라, 재생중에는 스위치가 녹음모우드로 잘못 전환되므로서 이미 녹음되어 있는 귀중한 내용이 지워지거나 손상을 입게되는 돌발적인 사고가 발생할 위험이 따른다.Therefore, if the switch is switched to the playback mode due to the user's fault during recording, the recording is not only stopped, but also during the playback, the switch may be incorrectly switched to the recording mode. This follows.

본 고안은 상기한 문제를 해결하기 위하여 안출된 것으로, 공지된 스탠드바이 회로와 타이머 사이에 새로운 오동작 방지를 위한 제어회로를 부가 설치함으로써 녹음중이나 또는 재생도중에는 타이머로부터 스탠드바이 회로에 공급되는 전원이 차단되도록 하여 사용자의 실수로 인한 돌발적인 사고를 방지하는 타이머 스탠드바이-스위치의 오동작 방지회로를 제공하고자 함에 그 목적이 있는 것이다.The present invention has been made to solve the above problems, by installing a control circuit for preventing new malfunction between the known standby circuit and the timer to cut off the power supplied from the timer to the standby circuit during recording or playback. It is an object of the present invention to provide a malfunction prevention circuit of a timer standby switch to prevent accidental accidents caused by a user's mistake.

이하 본 고안의 구성 및 작용, 효과를 예시한 도면에 의거 상세히 설명하면 다음과 같다.Hereinafter will be described in detail with reference to the drawings illustrating the configuration, operation, and effects of the present invention.

본 고안은 전원변압기(PT)와 다이오드(D1-D3), 콘덴서(C1-C3), 저항(R1-R8), 트랜지스터(Q1)(Q2), 제너다이오드(D4) 등으로 구성되는 제어회로(1)에 있는 전원변압기 1차측으로 타이머에서 전원이 공급되고, 제어회로(1)의 출력이 공지된 스탠드바이회로(2)로 인가되도록 연결된 구조로 되어 있다.The present invention includes a power transformer (PT), a diode (D 1 -D 3 ), a capacitor (C 1 -C 3 ), a resistor (R 1- R 8 ), a transistor (Q 1 ) (Q 2 ), a zener diode (D 4 ) power is supplied from the timer to the primary side of the power transformer in the control circuit 1 composed of the same, and so that the output of the control circuit 1 is applied to a known standby circuit 2.

미설명부호 a, b는 타이머로부터 전원입력단자를 나타낸다.Reference numerals a and b denote power input terminals from the timer.

제1도는 본 고안의 회로도를 나타낸 것으로, 녹음기에 부착되어 있는 전원스위치를 켜면 타이머로부터 예약 기억된 시각에 제어회로(1)에 있는 전원 변압기(PT) 1차측으로 전원이 공급되어 전원변압기(PT)에 의하여 회로에 적합한 전압으로 변압되며, 이 전압이 정류다이오드(D1)(D2)로 인가되므로 정류다이오드(D1)의 캐소드측이 양전위(+)가 되어 콘덴서(C1)에 충전되고, 정류다이오드(D2)의 애노드측은 음전위(-)가 되어 콘덴서(C2)에 충전된다. 이 때에 충전 시간은 콘덴서(C1)(C2)의 용량에 따라 다르게 되므로 콘덴서(C1)의 용량을 크게하고, 콘덴서(C2)의 용량은 작게하면 A점은 음전위(-)가 된다.1 is a circuit diagram of the present invention, when the power switch attached to the recorder is turned on, power is supplied to the primary side of the power transformer PT in the control circuit 1 at the time reserved and stored from the timer so that the power transformer PT Is converted into a voltage suitable for the circuit, and the voltage is applied to the rectifying diode (D 1 ) (D 2 ), so that the cathode side of the rectifying diode (D 1 ) becomes a positive potential (+) to the condenser (C 1 ). After charging, the anode side of the rectifying diode D 2 becomes negative potential (−) and is charged in the capacitor C 2 . At this time, the charging time varies depending on the capacity of the capacitors C 1 and C 2. Therefore , when the capacity of the capacitor C 1 is increased and the capacity of the capacitor C 2 is small, the point A becomes a negative potential (−). .

또한 콘덴서(C1)(C2)의 충전이 완료된 후에도 저항(R1)을 저항(R2)보다 큰 것으로 설정하면 A점은 계속 음전위(-)가 된다.Also, if the resistor R 1 is set to be larger than the resistor R 2 even after the charging of the capacitors C 1 and C 2 is completed, the point A becomes a negative potential (−).

따라서 트랜지스터(Q1)(Q2)는 역바이어스가 걸려 턴오프되고 공급전원이 저항(R7)을 거쳐 스탠드바이회로(2)에 있는 스탠드바이-스위치(SW1)(SW2)로 인가된다.Thus, transistors Q 1 and Q 2 are reverse biased and turned off, and the supply power is applied to the standby switch SW 1 SW 2 in the standby circuit 2 via the resistor R 7 . do.

상기한 경우에 사용자가 녹음을 하기 위하여 스탠드바이-스위치(SW1)(SW2)를 녹음모우드(REC)에 두었다면 공급전원이 저항(R9)(R13)을 통해 노아게이트(G1)에, 저항(R10)(R14)을 통해 노아게이트(G3)에 인가되어 그 출력이 각각 콘덴서(C6)(C7)와 노아게이트(G2)(G4) 및 저항(R17)(R18)을 차례로 거쳐 트랜지스터(G3)(G5)의 베이스에 인가되므로 트랜지스터(Q3)(Q5)가 턴온되어 재생스위치(P/B SW)와 녹음스위치(REC SW)가 작동하여 녹음기능을 수행하게 된다.In the above case, if the user puts the standby switch SW 1 (SW 2 ) in the recording mode REC for recording, the power supply is connected to the noar gate G 1 through the resistor R 9 (R 13 ). ) Is applied to the noah gate (G 3 ) through a resistor (R 10 ) (R 14 ) and its output is respectively a capacitor (C 6 ) (C 7 ), a noa gate (G 2 ) (G 4 ) and a resistor ( Since it is applied to the base of transistors G 3 and G 5 via R 17 ) (R 18 ), transistors Q 3 and Q 5 are turned on so that the regeneration switch (P / B SW) and the recording switch (REC SW) are turned on. ) Will start recording.

여기에서 저항(R9)과 콘덴서(C4)는 스탠드바이회로(2)가 전원을 공급 받은 후 녹음기의 회로가 안정된 후 동작하도록 하기위해 지연작용을 하며, 녹음동작시 녹음스위치(REC SW)가 작동한 직후에 재생스위치(P/B SW)가 작동하도록 콘덴서(C6)의 용량을 콘덴서(C7)보다 크도록 설정하고 있다.Here, the resistor (R 9 ) and the condenser (C 4 ) are delayed to operate after the circuit of the recorder is stabilized after the standby circuit 2 is supplied with power, and the recording switch (REC SW) during the recording operation. The capacity of the capacitor C 6 is set to be larger than the capacitor C 7 so that the regeneration switch P / B SW operates immediately after the operation.

한편 공급전원이 저항(R5)을 거쳐 콘덴서(C3)에 인가되며 콘덴서(C3)가 충전을 시작하고, B점의 전위는 상승하여 제너다이오드(D4)에 제너전류가 흐르게 되므로 트랜지스터(Q2)가 턴온된다. 따라서 스탠드바이회로(2)에 있는 스탠드바이-스위치(SW1)(SW2)로 공급되는 전원이 차단되므로 사용자의 실수로 스탠드바이-스위치(SW1)(SW2)의 위치가 녹음모우드(REC)에서 재생모우드(P/B)로 전환되어도 동작을 할 수 없게 되어 전원스위치 온 초기에 선택된 녹음 기능에는 아무런 변화가 없게 된다.Meanwhile, the power supply is applied to the capacitor (C 3) through a resistance (R 5) a capacitor (C 3) begins to charge, and the potential of the point B is raised by a Zener current flows to the Zener diode (D 4), so the transistor (Q 2 ) is turned on. Therefore, the power supplied to the standby switch (SW 1 ) (SW 2 ) in the standby circuit (2) is cut off, so that the position of the standby switch (SW 1 ) (SW 2 ) by mistake of the user is the recording mode ( Even if it is changed from REC) to playback mode (P / B), it will not be able to operate, and there will be no change in the recording function selected at the time of power switch on.

트랜지스터(Q2)를 오프상태에서 턴온상태로 변환시키는 시간은 저항(R5)과 콘덴서(C3)의 시정수 및 제너다이오드(D4)의 전압과의 관계로 설정되므로 스탠드바이회로의 동작시간을 감안하여 임의로 설정할 수 있다.Time for converting a transistor (Q 2) to the turn-on state from an off state is a resistance (R 5) and a capacitor (C 3) time constant and the zener diode (D 4), so setting the relationship between the operation of the stand-by circuit of the voltage of the It can be set arbitrarily in consideration of time.

또한 공급전원 오프시에는 콘덴서(C2)가 저항(R8)을 통하여 신속히 방전하고, 콘덴서(C1)는 서서히 방전하게 되므로 순간적으로 A점의 전위가 양(+)전위가 되어 트랜지스터(Q1)가 턴온되고, 콘덴서(C3)는 트랜지스터(Q1)를 통하여 순간 방전하여 재전원 공급시 저항(R5)과 콘덴서(C3)의 충전시간을 일정하게 유지시켜 준다.In addition, when the power supply is turned off, the capacitor C 2 discharges quickly through the resistor R 8 , and the capacitor C 1 discharges gradually. Thus, the potential at the point A becomes a positive potential and the transistor Q 1 ) is turned on, and the capacitor C 3 discharges instantaneously through the transistor Q 1 to maintain a constant charging time of the resistor R 5 and the capacitor C 3 when re-power is supplied.

재생시에도 녹음시와 마찬가지로 재생동작이 이루어진 후에 제어회로(1)가 스탠드바이회로(2)에 공급되는 전원을 차단시켜 사용자의 실수로 인하여 스탠드바이-스위치(SW1)(SW2)가 오동작 하더라도 전원스위치 온 초기에 선택된 재생기능을 계속하게 된다.Even if the switch (SW 1) (SW 2) malfunction - even after made the same manner as during playback operation during reproduction the control circuit (1) with a stand-by circuit (2) by adjusting power supply due to a human error, the stand-by The playback function selected at the beginning of the power switch is continued.

이상에서 설명한 바와같이 본 고안은 통상의 녹음기에 사용된 타이머스탠드바이회로에서 발생하는 스탠드바이-스위치의 돌발적인 전환을 방지하여 사용자가 기대하는 녹음 및 재생을 계속 실시할 수 있는 장점이 있다.As described above, the present invention has the advantage of preventing the sudden switching of the standby switch generated in the timer stand-by circuit used in a conventional recorder, so that the user can continuously perform recording and playback.

Claims (1)

전원변압기(PT)와 다이오드(D1-D4), 콘덴서(C1-C3), 저항(R1-R8), 트랜지스터(Q1)(Q2) 등으로 구성된 제어회로(1)가 통상의 스탠드바이회로(2)를 제어하도록 연결된 녹음기용 타이머 스탠드바이-스위치의 오동작 방지회로.Control circuit (1) consisting of power transformer (PT), diode (D 1 -D 4 ), capacitor (C 1 -C 3 ), resistor (R 1 -R 8 ), transistor (Q 1 ) (Q 2 ), etc. A malfunction prevention circuit of a timer standby switch for the recorder, which is connected so that the controller controls the normal standby circuit (2).
KR2019850003059U 1985-03-25 1985-03-25 False play preventing circuit KR870001261Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850003059U KR870001261Y1 (en) 1985-03-25 1985-03-25 False play preventing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850003059U KR870001261Y1 (en) 1985-03-25 1985-03-25 False play preventing circuit

Publications (2)

Publication Number Publication Date
KR860012403U KR860012403U (en) 1986-10-10
KR870001261Y1 true KR870001261Y1 (en) 1987-03-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850003059U KR870001261Y1 (en) 1985-03-25 1985-03-25 False play preventing circuit

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KR860012403U (en) 1986-10-10

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