KR920002448Y1 - Stand-by morning circuit - Google Patents
Stand-by morning circuit Download PDFInfo
- Publication number
- KR920002448Y1 KR920002448Y1 KR2019890019286U KR890019286U KR920002448Y1 KR 920002448 Y1 KR920002448 Y1 KR 920002448Y1 KR 2019890019286 U KR2019890019286 U KR 2019890019286U KR 890019286 U KR890019286 U KR 890019286U KR 920002448 Y1 KR920002448 Y1 KR 920002448Y1
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- South Korea
- Prior art keywords
- transistor
- standby
- base
- circuit
- flyback transformer
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
-
- 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
- H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Dc-Dc Converters (AREA)
- Television Receiver Circuits (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 종래의 스탠바이 동작회로의 회로도.1 is a circuit diagram of a conventional standby operation circuit.
제 2 도는 본 고안의 회로도이다.2 is a circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
SB : 스탠바이신호 C : 콘덴서SB: Standby signal C: Capacitor
Q : 트랜지스터 D : 다이오드Q: Transistor D: Diode
LD : 발광다이오드 IC : TV모니터 내부 수평 발진용 ICLD: Light emitting diode IC: Horizontal oscillation IC for TV monitor
FBT : 플라이백 변성기 M : 메인회로 주전원 출력FBT: Flyback Transformer M: Main Circuit Main Power Output
PS : 스위칭 모드 전원공급회로PS: Switching mode power supply circuit
본 고안은 스탠바이 동작을 필요로하는 리모콘 TV 수상기 또는 모니터에 있어서, 플라이백변성기 입력전원과 수평발진을 차단하여 플라이백 변성기의 동작을 중지시켜 메인회로에 필요로하는 주전원을 차단할 수 있도록 한 플라이백변성기 입력전원과 수평발진차단에 의한 스탠바이 동작회로에 관한 것이다.The present invention is a remote control TV receiver or monitor that requires a standby operation, the flyback transformer input power and the horizontal oscillation is cut off the flyback transformer to stop the operation of the flyback transformer to cut off the main power required for the main circuit It relates to a standby operation circuit by the transformer input power supply and the horizontal oscillation blocking.
종래 스탠바이 동작에 일시적으로 TV 수상기나 모니터의 동작을 정지시키는데는 그 실시부분을 플라이백변성기의 수평발진부의 차단에 착안하였다.In order to temporarily stop the operation of the TV receiver or the monitor during the conventional standby operation, the embodiment is focused on the blocking of the horizontal oscillation unit of the flyback transformer.
이러한 종래의 수평발진차단에 의한 스탠바이 동작회로로서는 보조전원용 교류전원 트랜스와 릴레이, 보조전원 정류회로 등으로 구성된 것이 사용되어온 바, 이를 개선한 스탠바이 동작회로가 실용신안 출원공고 제 89-6335호로 제시되었다.As a standby operation circuit by the conventional horizontal oscillation cutoff, a configuration consisting of an AC power transformer, a relay, and an auxiliary power rectifier circuit for an auxiliary power source has been used. .
제 1 도는 상기 실용신안출원공고 제 89-6335호 고안의 회로도이다.1 is a circuit diagram of the invention of Utility Model Application Publication No. 89-6335.
제 1 도의 고안에 있어서는 스탠바이신호(SB)에 의하여 트랜지스터(Q1)이 동작하여 수평발진이 차단됨에 의해 플라이백변성기(FBT)가 동작하지 못하게 되어 메인회로부의 동작이 중단되어 스탠바이 상태가 된다.In the design of FIG. 1, the transistor Q1 is operated by the standby signal SB, and the horizontal oscillation is blocked, thereby preventing the flyback transformer FBT from operating, and thus the operation of the main circuit unit is stopped and is in a standby state.
그러나 제 1 도의 고안에서는 수평발진이 차단되더라도 플라이백변성기(FBT)의 입력전원(B+)으로부터는 전원이 계속 공급되어 전력소모가 일어난다.However, in the scheme of FIG. 1, even when the horizontal oscillation is cut off, power is continuously supplied from the input power source B + of the flyback transformer FBT to consume power.
따라서 본 고안의 목적은 플라이백변성기의 입력전원이 스탠바이신호의 입력에 의해 수평발진신호와 동시에 차단되게하는 것이다.Therefore, an object of the present invention is to allow the input power of the flyback transformer to be cut off simultaneously with the horizontal oscillation signal by the input of the standby signal.
본 고안의 또다른 목적은 사용자가 스탠바이신호에 의해 TV 수상기나 모니터를 정지시켰을 때 정지상태를 확인할 수 있도록 하고자 하는 것이다.Another object of the present invention is to enable the user to check the stop state when the user stops the TV receiver or the monitor by the standby signal.
위와 같은 본 고안의 목적을 달성하기 위하여 본 고안에서는 플라이백변성기의 입력전원부에 적어도 하나이상의 트랜지스터를 설치하고, 또 스탠바이회로의 소정부위에 발광다이오드를 설치하였다.In order to achieve the object of the present invention as described above, in the present invention, at least one transistor is provided at an input power supply of a flyback transformer, and a light emitting diode is provided at a predetermined portion of a standby circuit.
이하 도면에 의거하여 본 고안을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the drawings.
본 고안은 제 2 도에서 점선으로 표시된 부분 외에는 제 1 도의 고안과 거의 동일한 구성을 갖는다.The present invention has a configuration substantially the same as that of the first embodiment except for the portions indicated by dashed lines in FIG.
곧 본 고안은 교류입력(AC)양단에 스위칭 모드전원 공급회로(PS)가 연결되고, 전원공급회로(PS)의 출력단에는 각각 통상의 플라이백 변성기(FBT)와 리모콘제어용 전원단자가 접속되며, 수평발진용 IC(IC)의 출력단에는 저항(R4)을 통해 트랜지스터(Q3)의 베이스와 스탠바이 구동트랜지스터(Q1)의 콜렉터를 접속하며, 상기 트랜지스터(Q1)의 콜렉터에는 콜렉터측에 플라이백트랜스(FBT)에 접속된 트랜지스터(Q3)의 베이스가 연결된 스탠바이 동작회로로서 플라이백변성기 입력전원(B+)측과 플라이백변성기(FBT)사이에 트랜지스터(Q4)를 연결하고 이 트랜지스터(Q4)의 베이스와 콜렉터 사이에 저항(R1)을 연결하며, 또 저항(R2)를 트랜지스터(Q4)의 베이스에 연결하며, 이 트랜지스터(Q4)의 베이스에 콜렉터가 접속되고 이미터가 접지된 트랜지스터(Q5)의 베이스에 스탠바이신호(SB)단자가 연결되어 있다.In other words, the present invention is connected to the switching mode power supply circuit (PS) at both ends of the AC input (AC), the normal flyback transformer (FBT) and the remote control power supply terminals are connected to the output terminal of the power supply circuit (PS), respectively. A base of the transistor Q3 and a collector of the standby driving transistor Q1 are connected to an output terminal of the horizontal oscillation IC IC through a resistor R4, and a flyback transformer is connected to the collector side of the collector of the transistor Q1. A standby operation circuit to which the base of transistor Q3 connected to FBT is connected, and transistor Q4 is connected between the flyback transformer input power source B + and the flyback transformer FBT, and the base of the transistor Q4 is connected. A resistor R1 is connected between the collector and the collector, and a resistor R2 is connected to the base of the transistor Q4, and a collector is connected to the base of the transistor Q4 and the emitter is grounded. Standby on base The signal SB terminal is connected.
한편 상기 트랜지스터(Q1)의 콜렉터에 저항(R3)을 개재시켜 발광다이오드(LD)를 연결시킬 수 있다.The light emitting diode LD may be connected to the collector of the transistor Q1 through a resistor R3.
따라서 스탠바이신호(SB)는 트랜지스터(Q1), (Q5)의 베이스에 동시에 인가된다.Therefore, the standby signal SB is simultaneously applied to the bases of the transistors Q1 and Q5.
이러한 구성의 본 고안의 동작은 다음과 같다.The operation of the present invention of such a configuration is as follows.
스탠바이신호(SB)가 입력되면 트랜지스터(Q1), (Q5)가 온되어 트랜지스터(Q3), (Q4)가 오프되어 B+전압이 차단된다. 곧 트랜지스터(Q4), (Q5)가 없으면 트랜지스터(Q1)을 온시킴으로써 수평발진은 차단되나 트랜지스터(Q3)는 완전 오프되지 못한다. 그러나 트랜지스터(Q4), (Q5)의 구성으로 인해 플라이백 변성기(FET)의 입력전원(B+)이 완전히 차단된다.When the standby signal SB is input, the transistors Q1 and Q5 are turned on so that the transistors Q3 and Q4 are turned off to block the B + voltage. In other words, if there are no transistors Q4 and Q5, the horizontal oscillation is cut off by turning on the transistor Q1, but the transistor Q3 is not completely turned off. However, due to the configuration of the transistors Q4 and Q5, the input power source B + of the flyback transformer FET is completely shut off.
또한 스탠바이 동작시 트랜지스터(Q1)이 동작이 되지 않더라고 트랜지스터(Q4), (Q5)에 의해 FBT의 전원(B+)은 차단되어 메인회로의 주전원이 차단된다.In addition, even when the transistor Q1 is not operated during the standby operation, the power source B + of the FBT is cut off by the transistors Q4 and Q5, and the main power source of the main circuit is cut off.
한편 발광다이오드(LD)를 설치한 경우에는 트랜지스터(Q1)이 온됨으로 해서 발광다이오드(LD)가 동작하여, TV 수상기나 모니터의 동작이 정지되었음을 발광표시하게 된다.On the other hand, in the case where the light emitting diode LD is provided, the transistor Q1 is turned on so that the light emitting diode LD is operated to display light emission that the operation of the TV receiver or the monitor is stopped.
위와 같이 본 고안에 의하며 스탠바이 동작시 플라이백 변성기의 전원이 완전차단되어 전력손실이 줄어들고, 한쪽 트랜지스터가 파괴되더라도 다른쪽 트랜지스터에 의해 플라이백 변성기의 전원이 차단될 수 있다.According to the present invention as described above, the power loss of the flyback transformer is completely cut off during the standby operation, and the power loss is reduced.
또한 TV 수상기나 모니터가 스탠바이 신호에 의해 동작이 정지된 상태 여부를 쉽게 알 수 있다.In addition, it is easy to know whether the TV receiver or the monitor is stopped by the standby signal.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890019286U KR920002448Y1 (en) | 1989-12-19 | 1989-12-19 | Stand-by morning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890019286U KR920002448Y1 (en) | 1989-12-19 | 1989-12-19 | Stand-by morning circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910013490U KR910013490U (en) | 1991-07-30 |
| KR920002448Y1 true KR920002448Y1 (en) | 1992-04-13 |
Family
ID=19293444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890019286U KR920002448Y1 (en) | 1989-12-19 | 1989-12-19 | Stand-by morning circuit |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920002448Y1 (en) |
-
1989
- 1989-12-19 KR KR2019890019286U patent/KR920002448Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910013490U (en) | 1991-07-30 |
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