KR920006547Y1 - Laster horizontal center control circuit - Google Patents

Laster horizontal center control circuit Download PDF

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Publication number
KR920006547Y1
KR920006547Y1 KR2019860010932U KR860010932U KR920006547Y1 KR 920006547 Y1 KR920006547 Y1 KR 920006547Y1 KR 2019860010932 U KR2019860010932 U KR 2019860010932U KR 860010932 U KR860010932 U KR 860010932U KR 920006547 Y1 KR920006547 Y1 KR 920006547Y1
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KR
South Korea
Prior art keywords
horizontal
correction current
current
output transistor
horizontal center
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KR2019860010932U
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Korean (ko)
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KR880003612U (en
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이건정
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주식회사 금성사
구자학
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Priority to KR2019860010932U priority Critical patent/KR920006547Y1/en
Publication of KR880003612U publication Critical patent/KR880003612U/en
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Publication of KR920006547Y1 publication Critical patent/KR920006547Y1/en

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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
    • H04N3/227—Centering
    • 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

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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

라스터 수평센터 조정회로Raster Horizontal Center Control Circuit

제1도는 본 고안의 회로도.1 is a circuit diagram of the present invention.

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

TR1: 수평출력 트랜지스터 C1, C2: 콘덴서TR 1 : horizontal output transistor C 1 , C 2 : condenser

VR1: 가변저항 T1: 플라이백 트랜스(FBT)VR 1 : Variable resistor T 1 : Flyback transformer (FBT)

T2: 사이드 핀 쿠션(side pin cushion) 트랜스 L1: 수평편향 코일T 2 : Side pin cushion Trans L 1 : Horizontal deflection coil

L2: 선형(linear) 코일 C2, D2: 보호회로L 2 : linear coil C 2 , D 2 : protection circuit

본 고안은 TV나 모니터의 B+전원을 이용하여 수평편향 코일에 흐르는 전류를 가변시켜 주므로써 화면의 수평센터를 조정할 수 있는 라스터 수평센터 조정회로에 관한 것이다.The present invention relates to a raster horizontal center adjustment circuit that can adjust the horizontal center of the screen by varying the current flowing in the horizontal deflection coil using the B + power of the TV or monitor.

일반적으로 라스터의 수평센터는 CRT 제작시의 오차나 색순도 마그네트에 의한 영향으로 인하여 화면의 위치가 한쪽으로 치우치게 되어 화면의 일부가 나타나지 않게 되므로, 이를 보정하기 위한 회로가 필요하게 된다.In general, the horizontal center of the raster, because the position of the screen is biased to one side due to the error due to the error or color purity magnet during the production of the CRT, so that a part of the screen does not appear, a circuit for correcting this is necessary.

본 고안은 이와같은 점에 착안하여 안출한 것으로, 수평편향 코일에 흐르는 전류를 (B+)전원으로써 조정하여 라스터의 수평센터를 정확히 맞출 수 있게 함으로써 화면 좌우가 단절되는것을 방지할 수 있도록 함에 그 목적이 있는 것이다.The present invention has been devised in view of this point, and by adjusting the current flowing through the horizontal deflection coil with (B + ) power supply, the horizontal center of the raster can be accurately aligned to prevent the screen from being cut off. The purpose is.

이하 첨부도면에 따라 본 고안의 구성을 설명하면 다음과 같다.Hereinafter, the configuration of the subject innovation according to the accompanying drawings.

첨부도면에서 플라이백 트랜스(T1)와 수평출력 트랜지스터(TR1)의 콜렉터에 수평편향 코일(L1), 사이드 핀 쿠션 트랜스(T2), 선형코일(L2)을 직렬로 접속시킨후 수평직선성 보정용 콘덴서(C1)와 전원(B+)에 접속된 가변저항(VR1)을 접속시켜 구성한다.In the accompanying drawings, a horizontal deflection coil (L 1 ), a side pin cushion transformer (T 2 ), and a linear coil (L 2 ) are connected in series to the collector of the flyback transformer (T 1 ) and the horizontal output transistor (TR 1 ). constitute by connecting the variable resistor (VR 1) connected to the horizontal linearity correction capacitor (C 1) and power (B +).

미설명부호 D1, C2는 각각 수평출력 트랜지스터 보호용 다이오드와 콘덴서이다.Reference numerals D 1 and C 2 are horizontal output transistor protection diodes and capacitors, respectively.

이와같이 구성된 본 고안의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effects of the present invention configured as described above are as follows.

첨부도면에서 수평출력 트랜지스터(TR1)의 콜렉터 전류는 FBT(T1) 1차측과 수평편향코일(L1)측으로 흐르는 전류의 합으로 된다.In the accompanying drawings, the collector current of the horizontal output transistor (TR 1) is the sum of the current flowing toward the FBT (T 1) 1 side and the horizontal deflection coil (L 1).

여기에서 수평편향코일(L1)로 흐르는 전류가 라스터의 수평센터를 좌우하게 되는데, 이때 상기 수평편향코일(L1)에 흐르는 전류를 가감시켜 라스터의 수평센터를 조정하게 되는 것이다.Here, the current flowing to the horizontal deflection coil L 1 determines the horizontal center of the raster. At this time, the current flowing through the horizontal deflection coil L 1 is adjusted to adjust the horizontal center of the raster.

즉, 가변저항(VR1)을 통하여 입력되는 전원(B+)은 수평직선성 보정용 콘덴서(C1)에 의해 톱니파 전류로 되어 선형코일(L2)고 사이드 핀 쿠션 트랜스(T2)를 통하여 수평편향 코일(L1)로 흐르게 되므로, 가변저항의 조정에 의한 전원(B+)으로 부터의 전류와 수평출력 트랜지스터(TR1)의 콜렉터 전류와의 전위차로서 수평편향 코일(L1)에 흐르는 전류를 조절하여 라스터의 수평센터를 조정하게 되는 것이다.That is, the power B + input through the variable resistor VR 1 becomes a sawtooth current by the horizontal linearity correction capacitor C 1 , and thus, through the linear coil L 2 and the side pin cushion transformer T 2 . Since it flows to the horizontal deflection coil L 1 , it flows to the horizontal deflection coil L 1 as a potential difference between the current from the power source B + by the adjustment of the variable resistor and the collector current of the horizontal output transistor TR 1 . By adjusting the current, the horizontal center of the raster is adjusted.

이와같은 본 고안은 B+전원으로써 수평편향 코일의 직류 전류를 가감시켜 라스터의 수평센터를 맞출 수 있는 것으로, 화면의 끝부분이 잘리게 되어 볼 수 없게 되는 것을 방지할 수 있는 효과가 있다.The present invention can be adjusted to the horizontal center of the raster by adding or subtracting the DC current of the horizontal deflection coil as a B + power supply, it is possible to prevent the end of the screen is cut off and can not be seen.

Claims (1)

수평동기신호의 입력에 따라 스위칭 신호를 공급하는 수평출력 트랜지스터(TR1)와, 상기 수평출력 트랜지스터(TR1)의 스위칭 출력신호에 의해 2차측으로 고전압을 발생하는 플라이백 트랜스(T11)와, 상기 수평 출력트랜지스터(TR1)를 보호하기 위한 보호회로(C2, Dz)로 된 수평출력 회로에 있어서, 상기 플라이백 트랜스(T1)의 일차측에 연결되어 인가되는 보정전류에 의해 전자빔을 수평방향으로 편향시키는 수평편향코일(L1)과, 공급전원(B+)을 가변하여 수평센터링 보정전류를 형성하는 가변저항(VR1)과, 상기 가변저항(VR1)을 통해 공급되는 보정전류의 수평직선성을 보정하는 수평직선성 보정용 콘덴서(C1)와, 상기 공급전원(B+)을 가변한 수평센터링 보정전류와 콘덴서(C1)에 의해 생성되는 톱니파 전류를 중첩시켜 수평센터링 보정전류의 방향 및 전류치 변화를 안정되게 하는 선형코일(L2) 및 사이드 핀 쿠션 트랜스(T2)를 구비하여서 구성됨을 특징으로 하는 라스터 수평센터 조정회로.A horizontal output transistor TR 1 for supplying a switching signal according to the input of the horizontal synchronization signal, and a flyback transformer T1 1 for generating a high voltage to the secondary side by the switching output signal of the horizontal output transistor TR 1 ; In the horizontal output circuit consisting of protection circuits (C 2 , Dz) for protecting the horizontal output transistor (TR 1 ), the electron beam is connected to the primary side of the flyback transformer (T 1 ) by a correction current applied thereto. A horizontal deflection coil L 1 for deflecting the battery in a horizontal direction, a variable resistor VR 1 for varying the supply power B + to form a horizontal centering correction current, and supplied through the variable resistor VR 1 . The horizontal linearity correction capacitor C 1 for correcting the horizontal linearity of the correction current and the horizontal centering correction current with the supplied power supply B + superposed and the sawtooth current generated by the capacitor C 1 Room of centering correction current And linear coils to stabilize the current value change (L 2) and side pincushion transformer (T 2) horizontal center raster adjustment circuit, characterized by comprising a hayeoseo configured.
KR2019860010932U 1986-07-25 1986-07-25 Laster horizontal center control circuit KR920006547Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860010932U KR920006547Y1 (en) 1986-07-25 1986-07-25 Laster horizontal center control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860010932U KR920006547Y1 (en) 1986-07-25 1986-07-25 Laster horizontal center control circuit

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KR880003612U KR880003612U (en) 1988-04-14
KR920006547Y1 true KR920006547Y1 (en) 1992-09-19

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Application Number Title Priority Date Filing Date
KR2019860010932U KR920006547Y1 (en) 1986-07-25 1986-07-25 Laster horizontal center control circuit

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KR880003612U (en) 1988-04-14

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