KR930003571Y1 - Laster compensating device for tv - Google Patents

Laster compensating device for tv Download PDF

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Publication number
KR930003571Y1
KR930003571Y1 KR2019880002660U KR880002660U KR930003571Y1 KR 930003571 Y1 KR930003571 Y1 KR 930003571Y1 KR 2019880002660 U KR2019880002660 U KR 2019880002660U KR 880002660 U KR880002660 U KR 880002660U KR 930003571 Y1 KR930003571 Y1 KR 930003571Y1
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resistor
capacitor
size control
horizontal size
vertical
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KR2019880002660U
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Korean (ko)
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KR890018356U (en
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박광호
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주식회사 금성사
최근선
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    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/237—Distortion correction, e.g. for pincushion distortion correction, S-correction using passive elements, e.g. diodes
    • 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
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/223—Controlling dimensions

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

Abstract

내용 없음.No content.

Description

TV 수상기용 실패형 라스터 보정 장치Failure Raster Correction Device for TV Receiver

제1도는 본 고안 장치의 회로도.1 is a circuit diagram of the device of the present invention.

제2a, b도는 제1도 회로의 각 부분에서의 파형도.2A and 2B are waveform diagrams of respective parts of the first circuit.

제3도는 종래 실패헝 라스터 보정장치의 회로도.3 is a circuit diagram of a conventional failing raster correction apparatus.

제4a, b도는 제3도 회로의 각 부분에서의 파형도.4A and 4B are waveform diagrams of respective parts of the circuit of FIG.

본 고안은 TV수상기 또는 모니터등의 실패형 라스터 보정장치에 관한것으로서 특히 수직출력부의 버퍼단출력을 실패형 라스터 왜곡 보상 및 수평크기 제어부(이하 명세서의 간편상 수평크기 제어부라함)의 전파정류 단의 부극성 입력에 연결하되 전파정류단의 정극성 입력에 가변저항기로서 레벨을 조절하도록 하여된 TV수상기용 실패형 라스터 보정장치에 관한것이다.The present invention relates to a failure type raster compensator such as a TV receiver or a monitor. In particular, the buffer stage output of the vertical output unit is used for the failure type raster distortion compensation and the full scale rectification stage of the horizontal size control unit (hereinafter referred to simply as the horizontal size control unit). A failure type raster compensator for a television receiver, which is connected to a negative polarity input of the control panel and whose level is adjusted as a variable resistor to the positive polarity input of the full wave rectifier stage.

종래에는 제3도에 도시된 바와같이 수직출력부(31)의 출력(A,B)을 저항(R1, R2)을 통하여 수직편향요크(32)에 인가하되 수직출력부(31)의 출력(A)을 수평크기 제어부(33)의 전파정류단(32A)의 정극성 입력(+)에 저항(R3)을 통하여 인가하고, 수평편향요크(32)와 저항(R2)간에 접속된 가변저항(VR1)을 통해 수직출력부(31)의 출력(B)을 전파정류단(32A)의 부극성 입력(-)에 연결하며, 저항(R1)과 수직편향요크(32)의 접속점에 콘덴서(C1)와 직렬접속된 저항(R4)을 연결하여서 된 것으로 그의 동작관계를 제4도를 참조하여 설명하면 먼저 수직출력부(31)의 출력(A)은 제4a도에서와 같이 귀선신호(R)가 포함된 파형이 출력된다. 이러한 출력파형은 저항(R2)을 통하여 수직편향요크(32)에 흐르게 되는데 저항(R2)에 의한 전압차이분이 수평크기 제어부(33)내 전파정류단(32A)의 장,부극성 입력 (+, -)에 각각 입력되므로 제4b도와같은 파형이 발생된다.Conventionally, as shown in FIG. 3, the outputs A and B of the vertical output unit 31 are applied to the vertical deflection yoke 32 through the resistors R 1 and R 2 , but the output of the vertical output unit 31 is not limited. The output A is applied to the positive polarity input (+) of the full-wave rectifying stage 32A of the horizontal size control section 33 through the resistor R3, and is connected between the horizontal deflection yoke 32 and the resistor R 2 . The output B of the vertical output unit 31 is connected to the negative input (−) of the full-wave rectifying stage 32A through the variable resistor VR 1 , and the resistor R 1 and the vertical deflection yoke 32 It is made by connecting the resistor (R 4 ) connected in series with the capacitor (C 1 ) to the connection point. When the operation relationship thereof is explained with reference to FIG. 4, first, the output (A) of the vertical output unit 31 is shown in FIG. A waveform including the retrace signal R is output as shown. This output waveform section of the voltage difference due to there is flow through the vertical deflection yoke (32) resistance (R 2) through the resistor (R 2) minutes, the horizontal size control section 33 in the full-wave rectification stage (32A), a negative input ( Since it is input to + and-), a waveform like that of Fig. 4b is generated.

따라서, 제4a도에서와 같은 귀선신호(R)에서 갑작스러운 큰 전류가 흐르게 될때 제4b도와같이 귀선신호 기간에서 파형이 찌그러지는 기생형상이 발생하므로 이떼에는 가변저항(VR1)에 의해 조정하도록 한 것이었다.Thus, when a sudden large current in the flyback signal (R) as in 4a also flow, so the parasitic shape in which the waveform distortion occurs in the blanking signal period, as 4b help yitte has to be adjusted by a variable resistor (VR 1) It was.

여기에서 저항(R1, R4) 및 콘덴서(C1)는 각각 궤환되는 전류량을 조절하여 직선성을 보상하기 위한 것이다.Here, the resistors R 1 and R 4 and the capacitor C 1 are used to compensate the linearity by adjusting the amount of current fed back.

그러나 이와같은 종래의 실패형 라스터 보정장치는 갑작스런 큰 전류에 의해 생성되는 기생현상을 방지하기 위하여 가변저항(VR1)을 사용하여 조절하나 컴퓨터의 수직주파수는 입력모드에 따라 변화되므로(예를들어 50HZ에서 70HZ로) 가변저항(VR1)을 어느 특정 주파수에 세팅시키면 다른 주파수에서 다시 기생현상이 발생되는 문제점이 있었다.However, the conventional failure raster compensator is controlled using a variable resistor (VR 1 ) to prevent parasitic phenomena generated by sudden large currents, but the vertical frequency of the computer varies depending on the input mode (for example, For example, from 50HZ to 70HZ) when the variable resistance VR 1 is set to a specific frequency, parasitic phenomena occur again at other frequencies.

또한 저항(R2)은 수직편항요크(32)와 직렬로 연결되어 있기때문에 저항(R2)의 전력소비로 인하여 저항자체의 용량값 및 전원의 용량이 커져야 할 뿐아니라 저항(R2)의 전력소비에 따른 열손실 및 열용량이 커지게되는등 많은 문제점이 있었다.In addition, the resistance (R 2) is in the vertical pyeonhang yoke 32 and because they are connected in series due to the power consumption of the resistor (R 2), as well as keojyeoya the capacity of the capacitance value and power of the resistance itself, the resistance (R 2) There are many problems such as heat loss and heat capacity increase due to power consumption.

본 고안은 이러한 종래의 단점을 해결하기 위하여 수직출력부의 버퍼단 출력을 실패형 라스터 왜곡보상 및 수평크기 제어부의 전파정류단의 부극성 입력에 연결하되 전파정류단의 정극성 입력은 가변저항기를 통하여 기준전위를 인가하므로서 귀선신호와 같은 과도 전류입력에 대한 찌그러짐의 발생을 방지하여 기생현상을 제거하고 수직편향요크에 직렬로 접속된 저항을 제거하여 전원용량을 축소시킴과 동시에 열손실 및 열용량을 작게하여도 되는 TV수상기용 실패형 라스터 보상장치를 제공하는데 그 목적이 있는 것으로 이하 첨부된 도면에 의하여 본 고안의 구성을 상세히 설명하면 다음과 같다.The present invention connects the buffer stage output of the vertical output section to the negative input of the failure type raster distortion compensation and the full wave rectifier stage of the horizontal size control unit. By applying the reference potential, it prevents the occurrence of distortion of the transient current input such as the return signal, eliminating parasitic phenomena, and eliminating the resistance connected in series to the vertical deflection yoke to reduce power capacity and at the same time reduce heat loss and heat capacity. The purpose of the present invention is to provide a failed raster compensator for a TV receiver, which will be described below in detail with reference to the accompanying drawings.

제1도에 도시한 바와같이 본 고안 장치는 수직출력부(1)의 출력단(A, B)에 수직편향(2)와 저항(R1)을 직렬로 연결하되 저항(R1)과 수직편향요크(2)와의 사이에는 직선성 보상용 저항(R1) 및 콘덴서(C2)가 연결된것과, 수평크기 제어부(3)가 설치된 TV수상기용 실패형 라스터 보정장치에 있어서, 상기 수직출력부(1)내 버퍼부(1A)의 출력단에 콘덴서(C1)를 연결하고, 그 콘덴서(C1)는 저항(R6)과 직렬접속하여 수평크기 제어부(3)내 전파정류단(3A)의 부극성 입력단(-)과 연결하며, 상기 콘덴서(C1)와 저항(R6)의 접속점에는 공급전원(B+)을 배분하는 분배저항(R2, R4)을 연결하며, 상기 수평크기 제어부(3)내 전파정류단(3A)의 정극성 입력단(+)에는 가변저항(VR1) 및 저항(R3, R5)을 통해 전원(B+)이 인가되도록 연결하여 구성된 것이다.As shown in FIG. 1, the device of the present invention connects the vertical deflection 2 and the resistor R 1 to the output terminals A and B of the vertical output unit 1 in series, but the resistor R 1 and the vertical deflection. In the failure type raster compensator for a TV receiver having a linearity compensation resistor (R 1 ) and a capacitor (C 2 ) connected to the yoke (2) and a horizontal size control unit (3), the vertical output unit (1) A capacitor C 1 is connected to the output terminal of the buffer portion 1A in the capacitor, and the capacitor C 1 is connected in series with the resistor R 6 so that the full wave rectifier stage 3A in the horizontal size control section 3 is connected. And a distribution resistor (R 2 , R 4 ) for distributing supply power (B + ) to the connection point of the capacitor (C 1 ) and the resistor (R 6 ). The positive input terminal (+) of the full-wave rectifying stage 3A in the size control unit 3 is connected to the power supply B + through the variable resistor VR 1 and the resistors R 3 and R 5 .

이와같이 구성된 본 고안 장치의 작용효과를 제1도 및 제2a, b도를 참조하여 설명하면 수직출력부(1)외 버퍼단(1A)의 출력은 제2a도와 같은 톱니파형이 된다. 이러한 톱니파형은 콘덴서(C1)로 카플링하여 저항(R2, R4)에 의하여 설정된 기준전압으로 수평크기 제어부(3)내 전파정류단(3A)의 부극성 입력(-)에 인가된다.Referring to Figs. 1 and 2a and b, the effect of the device of the present invention configured as described above will be described with reference to Fig. 2a as shown in Fig. 2a. The sawtooth waveform is coupled to the negative input (-) of the full-wave rectifying stage 3A in the horizontal size control section 3 at the reference voltage set by the resistors R 2 and R 4 by coupling to the capacitor C 1 .

여기에서 저항(R6)은 제2a도와 같은 파형에서 첨두치 (peak to peak)전압을 고려하여 전류를 제한하기 위한 것이다.Here, the resistor R 6 is for limiting the current in consideration of the peak to peak voltage in the waveform as shown in FIG. 2A.

또한 전파정류단(3A)의 정극성 입력(+)에는 가변저항(VR1)으로 설정된 기준전위가 인가되므로서 결국 제2b도와 같은 파라볼라파형이 발생되어 출력된다.In addition, since the reference potential set by the variable resistor VR 1 is applied to the positive polarity input (+) of the full-wave rectifying stage 3A, a parabola waveform as shown in FIG. 2B is generated and output.

그러므로 귀선파형대신에 제2a도와같은 톱니파형을 전파정류단(3A)에 인가하므로서 순간적인 피이크 전압으로 인하여 출력파형이 찌그러지는 현상내지는 기생현상을 방지할수 있는 것이다.Therefore, by applying the sawtooth waveform like the second wave to the full wave rectifying stage 3A instead of the retrace waveform, the parasitic phenomenon that the output waveform is distorted due to the instantaneous peak voltage can be prevented.

이상에서 설명된 바와같이 본 고안 장치에 의하여 수평크기 제어부의 전파정류단에 순간적인 피크전압을 갖는 귀선신호 대신에 일정한 레벨의 첨두치 전압을 인가하여 급격한 과도 전류에 의한 파형의 찌그러짐 내지는 기생현상을 방지토록 하므로서 초기에 실패형 라스터를 보상할수 있는 매우 유용한 고안인 것이다.As described above, a peak-to-peak voltage of a constant level is applied to the full-wave rectification stage of the horizontal size control unit instead of a return signal having an instantaneous peak voltage, thereby causing distortion of the waveform or parasitic phenomenon caused by a sudden transient current. It is a very useful design that can compensate for early failure rasters by preventing them.

Claims (1)

수직출력부(1)의 출력단(A,B)에 수직편향요크(2)와 저항(R1)을 직렬로 연결하되 그 저항(R1)과 수직편향요크(2)와의 사이에는 직선성 보상용 저항(R7) 및 콘덴서 (C2)가 연결된 것과 수평크기 제어부(3)가 설치된 TV수상기용 실패헝 라스터 보정장치에 있어서, 수직출력부(1)내 버퍼부(1A)의 출력단에 콘덴서(C1)를 연결하고, 그 콘덴서(C1)는 저항(R6)과 직렬접속하여 수평크기 제어부(3)내 전파정류단(3)내의 부극성 입력단(-)과 연결하며, 콘덴서(C1)와 저항(R6)의 접속점에는 공급진원(B+)을 분압하는 분배저항(R2, R4)을 연결하며, 수평크기 제어부(3)내 전파정류단(3A)의 정극성 입력단(+)에는 가변저항(VR1) 및 저항(R3, R5)을 통해 전원(B+)이 인가되도록 연결하여된 TV 수상기용 실패형 라스터 보정장치.A vertical deflection yoke 2 and a resistor R 1 are connected in series to the output terminals A and B of the vertical output unit 1 , and linearity compensation is performed between the resistor R 1 and the vertical deflection yoke 2. In a fail-safe raster compensator for a TV receiver, in which a resistor (R 7 ) and a capacitor (C 2 ) are connected to each other, and a horizontal size control unit (3) is installed, the output terminal of the buffer unit (1A) in the vertical output unit (1). The capacitor C 1 is connected, and the capacitor C 1 is connected in series with the resistor R 6 to be connected to the negative input terminal (-) in the full wave rectifying stage 3 in the horizontal size control section 3, and the capacitor A connection resistor (R 2 , R 4 ) for dividing the supply source (B + ) is connected to the connection point of (C 1 ) and the resistor (R 6 ), and the full-wave rectifier stage (3A) in the horizontal size control section (3) is connected. The failure type raster correction apparatus for a TV receiver connected to a polarity input terminal (+) through a variable resistor (VR 1 ) and a resistor (R 3 , R 5 ) to be supplied with power (B + ).
KR2019880002660U 1988-02-29 1988-02-29 Laster compensating device for tv KR930003571Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020048768A (en) * 2000-12-18 2002-06-24 이형도 Deflection yoke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020048768A (en) * 2000-12-18 2002-06-24 이형도 Deflection yoke

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