KR890006335Y1 - Stand-by acting circuit by horizontal osillation broken - Google Patents

Stand-by acting circuit by horizontal osillation broken Download PDF

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Publication number
KR890006335Y1
KR890006335Y1 KR2019860003863U KR860003863U KR890006335Y1 KR 890006335 Y1 KR890006335 Y1 KR 890006335Y1 KR 2019860003863 U KR2019860003863 U KR 2019860003863U KR 860003863 U KR860003863 U KR 860003863U KR 890006335 Y1 KR890006335 Y1 KR 890006335Y1
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South Korea
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transistor
circuit
power supply
horizontal
standby
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KR2019860003863U
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Korean (ko)
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KR870015578U (en
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채종욱
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주식회사 금성사
구자학
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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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/42—Flyback transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

내용 없음.No content.

Description

수평발진 차단에 의한 스탠바이 동작회로Standby operation circuit by blocking horizontal oscillation

제1도는 종래의 회로도.1 is a conventional circuit diagram.

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

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

20 : TV/모니터 내부 수평 발진용 IC SMPS : 스위칭 모드 전원 공급회로20: TV / monitor internal oscillation IC SMPS: switching mode power supply circuit

FBT : 플라이백 트랜스 Q2, Q3: 트랜지스터FBT: Flyback Transformer Q 2 , Q 3 : Transistor

본 고안은 스탠바이(Stand BY)동작을 필요로 하는 리모콘 TV수상기 또는 모니터에 있어, 수평 발진을 차단하여 플라이 백 트랜스(FBT)의 동작을 중단시키므로서 메인 회로에 필요로하는 주전원을 차단할 수 있도록한 수평발진 차단에 의한 스탠바이 동작회로에 관한 것이다.The present invention provides a remote control TV receiver or a monitor that requires a standby BY operation to cut off the horizontal oscillation to stop the operation of the flyback transformer (FBT) to cut off the main power required for the main circuit. It relates to a standby operation circuit by the horizontal oscillation blocking.

종래에는 제1도에 도시한 바와 같이 교류입력(AC)을 차단하는 방식을 채택하고 있는 것으로서, 주전원 스위치(SW1)가 온 상태가 되면, 교류 입력선(AC Line)양단에 연결된 보조 전원용 교류 전원트랜스(T)와 보조전원 정류회로(13)를 거쳐 단자(14)에 리모콘 제어용 보조전원이 가해지도록 구성되어져 있으며, 필요에 따라 스탠바이 상태에서는 단자(10)에 하이 신호가 입력되므로 트랜지스터(Q1)가 도통되어 릴레이(Ry)가 구동되므로 평상시 폐쇄접점인 그의 접점이 개방되어 주전원부 발생회로(11)에 교류전원(AC)이 차단되므로 플라이백 트랜스(FBT)가 동작하지 못하므로 각 메인 회로부에 주전원을 차단하게 된다.Conventionally, as shown in FIG. 1, a method of cutting off the AC input AC is adopted. When the main power switch SW 1 is turned on, the AC power for the auxiliary power source connected to both ends of the AC line is changed. The auxiliary power supply for controlling the remote controller is applied to the terminal 14 via the power supply T and the auxiliary power rectifying circuit 13, and a high signal is input to the terminal 10 in the standby state as necessary. 1 ) The relay Ry is driven so that its normally closed contact is opened and the AC power is interrupted by the main power generation circuit 11 so that the flyback transformer FBT does not operate. The main power is cut off in the circuit part.

한편 정상상태에서는 스탠바이 신호가 단자(10)에 로우 상태로 입력되어 트랜지스터(Q1)가 부도통되어 릴레이(Ry)가 구동되지 못하므로 그의 접점이 폐쇄상태로 되어 교류전원(AC)이 공급되므로 플라이백 트랜스가 동작되는 것이어서, 각 메인 회로부에 정상적으로 전원공급이 되는 것이다.On the other hand, in the normal state, the standby signal is input to the terminal 10 in a low state, and the transistor Q 1 is not conducting so that the relay Ry cannot be driven, so that its contact is closed and the AC power source AC is supplied. The flyback transformer is operated so that power is normally supplied to each main circuit part.

그러나, 이와같은 종래의 회로 구성은 고가인 보조전원용 트랜스, 릴레이 및 정전압 정류회로로 구성되어져 있어, 구조가 복잡할뿐만 아니라 제품 코스트가 상승되는 문제점이 있었다.However, such a conventional circuit configuration is composed of expensive auxiliary power transformers, relays, and constant voltage rectifier circuits, which not only has a complicated structure but also increases the product cost.

본 고안은 이러한 점을 감안하여 간단한 회로 구성으로서, 수평 발진 동작을 차단하여 이에 따라 스탠바이 동작을 행할 수 있도록 안출한 것으로서, 이를 첨부한 도면에 의하여 상세히 설명하면 다음과 같다.The present invention is a simple circuit configuration in view of this point, it is designed to cut off the horizontal oscillation operation to perform a standby operation accordingly, as described in detail by the accompanying drawings as follows.

제2도에 도시한 바와 같이 교류 입력(AC)양단에 스위칭 모드 전원공급 회로(Switching Mode Power Supply)(이하 SMPS로 약칭함)를 연결하되, 그의 출력단(Q1), (Q2)은 각각 플라이백 트랜스(FBT)와 리모콘 콘제어용 전원단자(14)에 접속하고, TV/모니터 내부에 설치된 수평 발진용 IC(20)의 출력단에는 트랜지스터(Q1)의 콜렉터측 및 저항(R1)을 통하여 트랜지스터(Q2)의 베이스측을 접속하고, 상기 트랜지스터(Q2)의 콜렉터측에는 트랜지스터(Q3)의 베이스측을 접속하며, 상기 트랜지스터(Q3)의 에미터측은 플라이백 트랜스(FBT)(12)의 출력단에 연결하여 구성한 것이다.As shown in FIG. 2, a switching mode power supply (hereinafter abbreviated as SMPS) is connected across the AC input AC, and its output terminals Q 1 and Q 2 are respectively The collector side of the transistor Q 1 and the resistor R 1 are connected to the flyback transformer (FBT) and the remote control cone control power supply terminal 14, and to the output terminal of the horizontal oscillation IC 20 installed inside the TV / monitor. by connecting the base side of the transistor (Q 2) and, to connect the base side of the collector side of the transistor (Q 3) of said transistor (Q 2), the emitter side of the flyback transformer (FBT) of said transistor (Q 3) It is configured by connecting to the output terminal of (12).

미설명 부호SW1은 주전원 스위치이고, F는 퓨우즈이고, C1은 콘덴서이고, D1은 트랜지스터 보호용 다이오드이다.Reference numeral SW 1 is a main power switch, F is a fuse, C 1 is a capacitor, D 1 is a transistor protection diode.

이와같이 구성된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention configured as described above are as follows.

제2도에서 주전원 스위치(SW1)를 온 상태로 하면 스위칭 모든 전원공급회로(SMPS)가 동작되어 그의 출력단(Q1)에는 메인 회로를 동작시킬 수 있는 직류전원 (약 DC90v-120v)이 플라이백 트랜스(FBT)에 가해지게 되고, 또한 출력단(O2)에는 리모콘 제어에 필요한 낮은 보조직류전원(약 DC 12V)이 출력되어 단자(14)에 가해진다.In FIG. 2, when the main power switch SW 1 is turned on, all switching power supply circuits SMPS are operated, and a DC power supply (about DC90v-120v) capable of operating the main circuit is operated at its output terminal Q 1 . A low auxiliary DC power supply (about DC 12V) necessary for controlling the remote controller is output to the output terminal O 2 and applied to the terminal 14.

이와같은 상태에서 스탠바이 신호단자(10)에 입력되는 신호가 하이 상태가 되면 트랜지스터(Q1)가 도통되어 콜렉터 전위가 로우 상태가 되므로 TV/모니터 내부의 수평 발진용 IC(20)의 출력단 신호는 차단되고, 또한 트랜지스터(Q2)도 부도통 상태가 되므로 그의 에미터측에 연결된 플라이백 트랜스(FBT)(12)가 동작하지 못하므로 스위칭 모드 전원 공급회로(SMPS)를 제외한 메인 회로부는 동작을 중단하게 되어 스탠바이 상태가 된다.In this state, when the signal input to the standby signal terminal 10 becomes high, the transistor Q 1 is turned on so that the collector potential is low, so the output terminal signal of the horizontal oscillation IC 20 inside the TV / monitor is The main circuit part except the switching mode power supply circuit (SMPS) is stopped because the flyback transformer (FBT) 12 connected to its emitter is not operated because the transistor Q 2 is also turned off. The standby state.

한편, 스탠바이 신호단자(10)에 입력되는 신호가 로우상태가 되면 트랜지스터(Q1)가 부도통되어 TV/ 모니터 내부의 수평 발진용 IC(20)는 정상적으로 동작하여 그의 출력단 신호는 저항(R1)을 통하여 트랜지스터(Q2)의 베이스에 가해져 트랜지스터(Q2)가 도통되어 트랜지스터(Q3)의 베이스 전위가 로우 상태가 되므로 트랜지스터(Q3)도 도통상태가 된다.On the other hand, when the signal input to the standby signal terminal 10 goes low, the transistor Q 1 is turned off so that the horizontal oscillation IC 20 inside the TV / monitor operates normally and its output terminal signal is a resistor R 1. ) because the base potential is at a low state transistor (Q 3) of the transistor (Q 2) is applied to the base transistor (Q 2) interconnecting transistor (Q 3) of the via it is also in a conductive state.

따라서 그의 에미터 측에 접속된 플라이백 트랜스(FBT)(12)에 전류가 흘러 동작상태가 되므로 주전원이 각 메인회로부에 공급되어 TV수상기 또는 모니터(도시생략됨)는 정상 동작을 수행하게 되는 것이다.Therefore, since the current flows to the flyback transformer (FBT) 12 connected to the emitter side, the main power is supplied to each main circuit, and the TV receiver or the monitor (not shown) performs normal operation. .

상기에서 설명한 바와 같이 동작되는 본 고안은 간단한 회로 구성으로서, 수평 발진을 차단하여 플라이백 트랜스의 동작은 중단시킴으로서 이에 따라 메인 회로에 공급되는 주전원을 차단할 수가 있는 것이어서, 공정의 단순화는 물론 제품 코스트를 절감할 수 있는 실용적인 고안인 것이다.The present invention, which is operated as described above, is a simple circuit configuration, which interrupts the horizontal oscillation to stop the operation of the flyback transformer, thereby cutting off the main power supplied to the main circuit, thereby simplifying the process and reducing the product cost. It is a practical design that can be saved.

Claims (1)

스탠바이 동작을 필요로 하는 리모콘 TV수상기 또는 모니터에 있어서, 교류입력(AC)양단에 스위칭 모드 전원공급회로(SMPS)를 연결하되, 그의 출력단(O1), (O2)은 각각 통상의 플라이백 트랜스(FBT)와 리모콘 제어용 전원단자(14)에 접속하고, 수평 발진용 IC(20)의 출력단에는 저항(R1)을 통한 트랜지스터(Q2)의 베이스와 스탠바이 구동 트랜지스터(Q1)의 콜렉터를 접속하며, 상기 트랜지스터(Q2)의 콜렉터에는 에미터측에 플라이백 트랜스(12)의 출력단이 접속된 트랜지스터(Q3)의 베이스를 연결하여서 구성된 수평발진 차단에 의한 스탠바이 동작회로.In a remote control TV receiver or monitor requiring a standby operation, a switching mode power supply circuit (SMPS) is connected across the AC input (AC), and its output terminals (O 1 ) and (O 2 ), respectively, are ordinary flybacks. Connected to the transformer FBT and the remote control power supply terminal 14, the output terminal of the horizontal oscillation IC 20 has a base of the transistor Q 2 through the resistor R 1 and a collector of the standby driving transistor Q 1 . And a collector of the transistor (Q 2 ) connected to a base of a transistor (Q 3 ) having an output terminal of a flyback transformer (12) connected to an emitter side, to the standby operation circuit of the horizontal oscillation blocking.
KR2019860003863U 1986-03-28 1986-03-28 Stand-by acting circuit by horizontal osillation broken KR890006335Y1 (en)

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Application Number Priority Date Filing Date Title
KR2019860003863U KR890006335Y1 (en) 1986-03-28 1986-03-28 Stand-by acting circuit by horizontal osillation broken

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Application Number Priority Date Filing Date Title
KR2019860003863U KR890006335Y1 (en) 1986-03-28 1986-03-28 Stand-by acting circuit by horizontal osillation broken

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KR870015578U KR870015578U (en) 1987-10-26
KR890006335Y1 true KR890006335Y1 (en) 1989-09-20

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KR2019860003863U KR890006335Y1 (en) 1986-03-28 1986-03-28 Stand-by acting circuit by horizontal osillation broken

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