KR850001848Y1 - Automatic breaker - Google Patents

Automatic breaker Download PDF

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Publication number
KR850001848Y1
KR850001848Y1 KR2019830010784U KR830010784U KR850001848Y1 KR 850001848 Y1 KR850001848 Y1 KR 850001848Y1 KR 2019830010784 U KR2019830010784 U KR 2019830010784U KR 830010784 U KR830010784 U KR 830010784U KR 850001848 Y1 KR850001848 Y1 KR 850001848Y1
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KR
South Korea
Prior art keywords
circuit
relay
power
cathode
scr
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Application number
KR2019830010784U
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Korean (ko)
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KR850005525U (en
Inventor
최형기
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대우전자
김용원
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Priority to KR2019830010784U priority Critical patent/KR850001848Y1/en
Publication of KR850005525U publication Critical patent/KR850005525U/en
Application granted granted Critical
Publication of KR850001848Y1 publication Critical patent/KR850001848Y1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/036—Radio; TV
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/12—Passive devices, e.g. 2 terminal devices
    • H01L2924/1203—Rectifying Diode
    • H01L2924/12035—Zener diode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/10—Details of semiconductor or other solid state devices to be connected
    • H01L2924/11—Device type
    • H01L2924/13—Discrete devices, e.g. 3 terminal devices
    • H01L2924/1301—Thyristor
    • H01L2924/13034—Silicon Controlled Rectifier [SCR]

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

내용 없음.No content.

Description

TV전원 자동 차단회로TV power supply automatic cutoff circuit

도면은 본 고안의 회로도.The figure is a circuit diagram of the present invention.

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

SW1: 주전원 회로 SW2: 슬립스위치SW 1 : main power circuit SW 2 : slip switch

RY : 릴레이 SCR : 실리콘 제어 정류기RY: Relay SCR: Silicon Controlled Rectifier

Rl,R2: 저항 ZD : 제너다이오드R l , R 2 : Resistance ZD: Zener Diode

C : 콘덴서C: condenser

본 고안은 방송신호 입력이 없을때(즉, TV방송종료시)에 일정한 시간 경과후에 TV전원을 자동적으로 오프되게 하는 TV전원 자동차단 회로에 관한 것이다.The present invention relates to a TV power cut-off circuit for automatically turning off the TV power supply after a certain time in the absence of a broadcast signal input (i.e., at the end of TV broadcast).

종래의 전원 자동차단 회로는 별도 설치된 동기신호 발생기에서 동기신호를 발생시켜 그 동기신호를 이용하는 것이 있었으나 트랜스포머와 다수의 복잡한 회로소자로 구성되기 때문에 제작원가가 높을 뿐만 아니라, 플라이백 펄스차에 의해 생기는 에러로 계기의 오동작이 많않으며, 또한 다른 자동차단장치는 튜너로부터 자동이득 제어회로(AGC)의 전압을 이용하여 트랜지스터를 동작시켜 포토커플러를 작동시켜 TV전원을 차단하는 회로가 있으나, 자동이득제어회로의 전압 안출과정에서 정확하게 회로를 동작시키는 인출전압의 전위가 일정하지 않으므로 오동작이 많으며, 불규칙적이고 많은 전류가 흐르므로, 포터커플러의 사용이 실용상 많은 문제점을 내재하고 있을뿐 아니라 고가의 포토커플러의 사용에 따른 원가상승등의 폐단이 있었다.Conventional power supply shut-off circuits generate synchronization signals from a separately installed synchronization signal generator and use the synchronization signals. However, since they are composed of a transformer and a large number of complicated circuit elements, they are not only expensive to manufacture but also caused by a flyback pulse difference. There are many malfunctions of the instrument due to errors, and other auto shut-off devices have a circuit that cuts off TV power by operating a photocoupler by operating a transistor using the voltage of the automatic gain control circuit (AGC) from the tuner. Since the potential of the withdrawal voltage to operate the circuit accurately during voltage drawing process is not constant, there are many malfunctions, and irregular and large current flows, so that the use of the port coupler has many problems in practical use as well as the expensive photo coupler. There were closings such as cost increase by use.

본 고안은 이러한 상기 2종류의 종래 TV전원 자동차단회로의 제반문제점을 개선하고, 절전 및 수명을 연장할 수 있으며, 회로가 간단하고, 원가절감 및 실용화에 용이하게 하려는 것이다.The present invention is intended to improve the overall problems of these two types of conventional TV power circuit breakers, to extend the power saving and the life, and to simplify the circuit, and to facilitate cost reduction and practical use.

본 고안을 도면에 의하여 상세히 설명하면 다음과 같다.Referring to the present invention in detail by the drawings as follows.

본 고안은 도시한 바와같이, 일측에 주전원스위치(SW1)를 접속한 TV의 전원단자의 타측에는 슬립스위치(SW2)와 릴레이(Ry)의 접점(S)을 접속하고 릴레이(Ry)의 코일(L)양단에 실리콘제어정류기(SCR)의 에노드와 캐소오드를 연결하고 게이트단을 저항(Rl)과 제너다이오드(ZD)를 개재하여 TV회로중 영상신호의 강약에 의하여 고주파 증폭단이득을 자동조정하는 자동이득 제어회로(AGC)에 접속하며, 상기 캐소오드와 게이트단사이에 상기 저항(Rl)과 함께 지연회로를 구성하는 콘덴서(C)를 접속하여서 된 것이다.The present invention, as shown, the other side of the power supply terminal of the TV with the main power switch (SW 1 ) connected to the slip switch (SW 2 ) and the relay (Sy) of the contact (S) connected to the relay Ry Connect the anode and the cathode of the silicon-controlled rectifier (SCR) to both ends of the coil (L), and the gate terminal through the resistor (R l ) and the zener diode (ZD). Is connected to an automatic gain control circuit (AGC) for automatically adjusting the voltage, and a capacitor (C) constituting a delay circuit together with the resistor (R 1 ) is connected between the cathode and the gate terminal.

또한 상기 구성에 있어서 실리콘 정류기(SCR)대신 트랜지스터를 사용할 수도 있다.In this configuration, a transistor may be used instead of a silicon rectifier (SCR).

이상과 같이 구성된 본 고안의 동작효과를 설명하면를 시청할 경우에는 먼저 주전원스위치(SW1)와 TV슬립스위치(SW2)을 온하여 방송신호가 TV에 수신되면 자동이득 제어회로(AGC)내의 전압이 떨어져 제너다이오드(ZD)쪽으로 전류가 흐르지 않게되어 실리콘 제어정류기(SCR)는 차단되므로 이때 직류전원(B+)은 저항(R2)을 통하여 릴레이(Ry)의 코일(L)에 인가되어 릴레이 접점(S)이 온된다.Referring to the operation effect of the present invention configured as described above, when watching the first turn on the main power switch (SW 1 ) and the TV slip switch (SW 2 ) when the broadcast signal is received by the TV voltage in the automatic gain control circuit (AGC) Since no current flows toward the zener diode (ZD), the silicon controlled rectifier (SCR) is cut off. At this time, the DC power supply (B + ) is applied to the coil (L) of the relay (Ry) through the resistor (R 2 ) to relay contact. (S) is turned on.

이때 TV 슬립스위치(AGC)을 오프하여도 TV 전체회로에 전원이 계속인가 된다.At this time, even if the TV sleep switch AGC is turned off, power is continuously applied to the entire TV circuit.

시청도중 방송신호가 중단되면, 자동이득 제어회로(AGC)의 전압이 TV회로의 전압을 제어하지 않으므로, 전압이 상승하여, 제너다이오드(ZD)에 인가되므로, 제너다이오드(ZD)가 도통될 수 있는 전압에 이르면, 오프상태에 있던 실리콘 정류기(SCR)가 온상태가 되어 도통되게 되며 저항(R2)을 통하여 릴레이구동코일(L)에 흐르던 직류전원(B+)이 실리콘 정류기(SCR)의 에노드단쪽으로 흐르게 되어 릴레이(Ry)의 접점(S)이 오프되어 전원이 차단된다.When the broadcast signal is interrupted during viewing, since the voltage of the automatic gain control circuit AGC does not control the voltage of the TV circuit, the voltage rises and is applied to the zener diode ZD, so that the zener diode ZD may conduct. When the voltage reaches a predetermined voltage, the silicon rectifier (SCR) in the off state is turned on and is conducted. The DC power (B + ) flowing through the resistor (R 2 ) to the relay drive coil (L) is connected to the silicon rectifier (SCR). Flow toward the anode end, the contact (S) of the relay (Ry) is turned off, the power is cut off.

여기서 상기 콘덴서(C)와 저항(R1)으로 구성된 지연회로에 의하여 방송신호가 중단되어도 소정시간 후에 릴레이(Ry)가 오프되므로 방송국사정에 의해 잠시 방송이 중단되는 경우에는 즉시 전원이 차단되지 않게 된다.Here, the relay Ry is turned off after a predetermined time even if the broadcast signal is interrupted by the delay circuit composed of the condenser C and the resistor R 1 . do.

이상과 같이 본 고안은 제너다이오드(ZD)를 이용하여 TV회로중 영상신호의 강약에 의하여 고주파증폭단이득을 자동조정하는 자동이득 제어회로에 접속하여 항상 일정한 레벨이하의 신호에서 동작하로록 되어 있어 오동작의 우려가 없으며, 회로가 간단하고 회로구성소자가 저렴하여 원가절감 및 실용화가 용이한 효과가 있는 것이다.As described above, the present invention is connected to an automatic gain control circuit which automatically adjusts the high frequency amplification gain due to the weakness of the video signal in the TV circuit using Zener diode (ZD), so that it always operates on a signal below a certain level. There is no concern, and since the circuit is simple and the circuit components are inexpensive, the cost reduction and the practical use are easy.

Claims (1)

일측에 주전원스위치(SW1)를 접속한 TV의 전원단자의 타측에는 슬립스위치(SW2)와 릴레이(Ry)의 접점(S)을 접속하고 릴레이(Ry)의 코일(L)양단에 실리콘제어 정류기(SCR)의 에노드와 캐소오드를 연결하고 게이트단을 저항(Rl)과 제너다이오드(ZD)를 개재하여 TV회로중 영상신호의 강약에 의하여 고주파 증폭단이득을 자동조정하는 자동이득 제어회로(AGC)에 접속하며, 상기 캐소오드와 게이트단사이에 상기 저항(Rl)과 함께 지연회로를 구성 하는 콘텐서(C)를 접속하여서 된 TV전원자동차단 회로.The other side of the power supply terminal of the TV with the main power switch (SW 1 ) connected to one side is connected to the contact (S) of the slip switch (SW 2 ) and the relay (Ry), and silicon control is provided at both ends of the coil (L) of the relay (Ry). An automatic gain control circuit that connects the anode and the cathode of the rectifier (SCR) and automatically adjusts the high-frequency amplification stage gain by the strength of the video signal in the TV circuit through the gate (R l ) and the zener diode (ZD). and connected to the (AGC), the cathode and the gate between the connecting the cone end hayeoseo tensor (C) constituting the delay circuit with the resistor (R l) a TV power car end circuit.
KR2019830010784U 1983-12-19 1983-12-19 Automatic breaker KR850001848Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019830010784U KR850001848Y1 (en) 1983-12-19 1983-12-19 Automatic breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019830010784U KR850001848Y1 (en) 1983-12-19 1983-12-19 Automatic breaker

Publications (2)

Publication Number Publication Date
KR850005525U KR850005525U (en) 1985-08-10
KR850001848Y1 true KR850001848Y1 (en) 1985-08-28

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Application Number Title Priority Date Filing Date
KR2019830010784U KR850001848Y1 (en) 1983-12-19 1983-12-19 Automatic breaker

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KR850005525U (en) 1985-08-10

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