KR0137181Y1 - Noise decrease equipment of deflection yoke - Google Patents
Noise decrease equipment of deflection yoke Download PDFInfo
- Publication number
- KR0137181Y1 KR0137181Y1 KR2019950047690U KR19950047690U KR0137181Y1 KR 0137181 Y1 KR0137181 Y1 KR 0137181Y1 KR 2019950047690 U KR2019950047690 U KR 2019950047690U KR 19950047690 U KR19950047690 U KR 19950047690U KR 0137181 Y1 KR0137181 Y1 KR 0137181Y1
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- KR
- South Korea
- Prior art keywords
- deflection yoke
- noise
- coil
- noise attenuation
- coils
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
- H01J29/76—Deflecting by magnetic fields only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/96—Circuit elements other than coils, reactors or the like, associated with the tube
- H01J2229/964—Circuit elements other than coils, reactors or the like, associated with the tube associated with the deflection system
Abstract
편향요크에 있어서, 수직편향코일과 별도로 페라이트 코아에 4개의 노이즈감쇠코일을 형성시키고, 임의의 노이즈 감쇠코일에 저항 및 콘덴서를 연결시켜 수평편향코일에서 유기되는 과전압 노이즈를 노이즈 감쇠코일을 통해 흡수시키고, 저항 및 콘덴서를 통해 댐핑시킨다.In the deflection yoke, four noise attenuation coils are formed in the ferrite core separately from the vertical deflection coil, and a resistor and a capacitor are connected to an arbitrary noise attenuation coil to absorb the overvoltage noise induced in the horizontal deflection coil through the noise attenuation coil. , Damping through resistors and capacitors.
Description
제1도는 일반적인 편향요크의 외형도.1 is an external view of a general deflection yoke.
제2도는 종래의 편향요크의 노이즈 감쇠회로도.2 is a noise attenuation circuit diagram of a conventional deflection yoke.
제3도는 제 1도의 일 실시예를 보인 수직편향 파형도.3 is a vertical deflection waveform diagram showing an embodiment of FIG.
제4도는 노이즈가 TV화면상에 나타난 상태도.4 is a state diagram in which noise appears on a TV screen.
제5도는 편향요크의 네크측에서 본 고안에 따른 편향요크의 노이즈 감쇠회로의 배선도.5 is a wiring diagram of a noise attenuation circuit of a deflection yoke according to the present invention on the neck side of a deflection yoke.
제6도는 본 고안에 따른 편향요크의 노이즈 감쇠회로도이다.6 is a noise attenuation circuit diagram of the deflection yoke according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
V1,V2 : 수직편향코일 C1~C2 : 콘덴서V1, V2: Vertical Deflection Coil C1 ~ C2: Condenser
R1~R2 : 저항 L1~L4 : 노이즈 감쇠코일R1 ~ R2: Resistance L1 ~ L4: Noise attenuation coil
F : 페라이트 코아 1 : 네크부F: ferrite core 1: neck part
2 : 스크린부 3 : 수직편향코일2: screen portion 3: vertical deflection coil
4 : 세퍼레이터 5 : 페라이트코아4: Separator 5: Ferrite Core
6 : 코아 클램프6: core clamp
본 고안은 편향요크에 관한 것으로서, 보다 상세하게는 편향요크에 과전압이 인가되어 이로 인해 발생하는 출력파형의 노이즈를 댐핑시키는 편향요크의 노이즈 감쇠장치에 관한 것이다. 일반적으로 편향요크는 전자총에서 발생한 전자빔을 스크린의 각 화소에 정확하게 주사하기 위하여 일정한 자계를 형성하여 전자빔을 편향시키는 작용을 하는 장치이며, 이는 크게 코일 세퍼레이터와 수직편향코일과 미스컨버젼스 보전장치로 구분된다.The present invention relates to a deflection yoke, and more particularly, to a noise attenuation device of a deflection yoke for damping noise of an output waveform caused by an overvoltage applied to the deflection yoke. In general, the deflection yoke is a device that deflects the electron beam by forming a constant magnetic field in order to accurately scan the electron beam generated by the electron gun to each pixel of the screen. .
일반적으로, 편향요크는 제 1도에 도시한 바와 같이 네크부(1) 및 스크린부(2)로 이루어진 한쌍의 코일 세퍼레이터(4)의 내측에 수직편향코일(도시하지 않았음)이 장착되고, 그 외측에는 수직편향코일(3)이 감겨진 페라이트 코아(5)가 코아 클램프(7)에 의해 조립된다. 이와 같은 편향요크는 음극선관의 후방에 장착되어 전자총에서 방사되는 빔을 화면상의 각 주사위치로 편향시킴으로써 화상을 구성할 수 있게 된다.Generally, the deflection yoke is mounted with a vertical deflection coil (not shown) inside the pair of coil separators 4 including the neck portion 1 and the screen portion 2, as shown in FIG. Outside the ferrite core 5, on which the vertical deflection coil 3 is wound, is assembled by the core clamp 7. As shown in FIG. Such a deflection yoke is mounted to the rear of the cathode ray tube, so that an image can be constructed by deflecting a beam emitted from an electron gun to each dice on the screen.
제1도는 종래의 편향요크의 노이즈 감쇠회로도로서, 두 개의 수직편향코일(V1,V2)에 저항(R1,R2) 및 콘덴서(C1,C2)를 각각 직렬로 구성시킨 구조이다. 여기서 콘덴서(C1,C2)는 저항 보호용 콘덴서이다. 여기서 편향요크에 관전압이 인가되면 편향요크에서의 전압의 파형이 제 3도의 A 부분과 같은 노이즈를 갖게 되고 이 노이즈는 불균일한 자계를 발생시켜 화면의 해상도를 저해시킨다. 제4도는 제3도의 A 와 같은 노이즈가 화면에서 나타나는 상태를 보여준다. 그러나, 제2도에서와 같이 수직편향코일(V1,V2)에 저항(R1,R2)이 연결되고, 이 저항값에 상응하도록 회로의 동작값이 작아진다. 따라서, 수직편향코일(V1,V2)에 과전압이 걸려도 저항(R1,R2) 및 콘덴서(C1,C2)가 과전압으로 인한 노이즈를 댐핑시킨다.FIG. 1 is a conventional noise attenuation circuit diagram of a deflection yoke, in which resistors R1 and R2 and capacitors C1 and C2 are formed in series with two vertical deflection coils V1 and V2, respectively. Here, the capacitors C1 and C2 are capacitors for resistance protection. In this case, when a tube voltage is applied to the deflection yoke, the waveform of the voltage at the deflection yoke has the same noise as that of part A of FIG. 3, and this noise generates a non-uniform magnetic field, which hinders the screen resolution. 4 illustrates a state in which noise such as A of FIG. 3 is displayed on the screen. However, as in FIG. 2, the resistors R1 and R2 are connected to the vertical deflection coils V1 and V2, and the operation value of the circuit is reduced to correspond to the resistance value. Therefore, even when the overvoltage is applied to the vertical deflection coils V1 and V2, the resistors R1 and R2 and the capacitors C1 and C2 damp the noise due to the overvoltage.
그러나 이와같은 종래의 기술은 수직코일에서 중간 TAP을 실시해야 하므로 특별한 설비 및 권선방식을 필요로 한다. 따라서 조립공정이 복잡해지고 제품가격이 상승하는 단점을 지니고 있었다.However, this conventional technique requires a special installation and winding method because the intermediate TAP must be performed in the vertical coil. Therefore, the assembly process was complicated and the product price had a disadvantage.
본 고안은 상기와 같은 단점을 감안하여 안출한 것으로서, 페라이트 코아에 노이즈 감쇠용 코일을 권선시킨 간단한 구조로 편향요크에 과전압이 인가되어 출력파형에 발생되는 노이즈를 댐핑시키는 편향요크의 노이즈 감쇠회로를 제공하는 것을 그 목적으로 한다.The present invention has been made in view of the above disadvantages, and has a simple structure in which a coil for noise attenuation is wound on a ferrite core, so that an overvoltage is applied to the deflection yoke to damp the noise generated in the output waveform. Its purpose is to provide.
상기와 같은 목적을 달성하기 위한 본 고안은 페라이트 코아에 복수개의 노이즈 감쇠코일을 형성시키고, 아울러 상기 복수개의 노이즈 감쇠코일중 임의의 노이즈 감쇠코일에 저항과 콘덴서를 연결시키는 것을 특징으로 한다.The present invention for achieving the above object is characterized in that to form a plurality of noise attenuation coils in the ferrite core, and to connect a resistor and a capacitor to any noise attenuation coil of the plurality of noise attenuation coils.
이하, 첨부된 제5도 및 제6도를 참조하여 본 고안의 구조와 상세한 설명을 실시한다.Hereinafter, the structure and the detailed description of the present invention with reference to the attached Figures 5 and 6.
제5도는 편향요크의 네크측에서 본 고안에 따른 편향요크의 노이즈감쇠회로의 배선도로서, 페라이트 코아(F)에 4개의 노이즈 감쇠코일(L1,L2,L3,L4)을 형성시키고, 상기 4개의 노이즈감쇠코일(L1,L2,L3,L4)의 일측에 저항(R1) 및 코일(C1)을 직렬로 연결시킨 구조이다. 즉, 제6도에서도 알수 있듯이, 수직편향코일(V1,V2)과 무관하게 페라이트 코아(F)에 노이즈 감쇠코일(L1,L2,L3,L4)을 형성시킨다. 여기서 노이즈 감소코일(L1,L2,L3,L4)의 권선수는 인가 전압의 용량을 고려하여 알맞게 권선한다. 이때, 도면에 도시되지 않은 편향요크의 수평편향코일에서 유기되는 과전압의 노이즈 성분이 노이즈 감쇠코일(L1,L2,L3,L4)를 통해 픽업되고 이어 저항(R1) 및 콘덴서(C1)를 통하면서 댐핑(damjping)된다.5 is a wiring diagram of the noise attenuation circuit of the deflection yoke according to the present invention on the neck side of the deflection yoke, in which four noise damping coils L1, L2, L3, and L4 are formed on the ferrite core F, and the four The resistor R1 and the coil C1 are connected in series to one side of the noise attenuation coils L1, L2, L3, and L4. That is, as shown in FIG. 6, noise attenuation coils L1, L2, L3 and L4 are formed in the ferrite core F irrespective of the vertical deflection coils V1 and V2. Here, the number of turns of the noise reduction coils L1, L2, L3, and L4 is appropriately wound in consideration of the capacity of the applied voltage. At this time, the noise component of the overvoltage induced in the horizontal deflection coil of the deflection yoke not shown in the figure is picked up through the noise attenuation coils L1, L2, L3, L4, and then through the resistor R1 and the capacitor C1. It is damped.
본 고안에 의해 저항 및 콘덴서를 이용하는 증개 탭(TAP)방식에서 필요한 설비가 필요없어지며 또한, 노이즈 감쇠코일의 권선수를 조정하여 보다 효율적으로 노이즈를 감쇠시킬수 있는 잇점이 있다.The present invention eliminates the necessity of equipment required in the TAP method using a resistor and a condenser, and also has the advantage of more effectively attenuating noise by adjusting the number of turns of the noise attenuation coil.
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Application Number | Priority Date | Filing Date | Title |
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KR2019950047690U KR0137181Y1 (en) | 1995-12-26 | 1995-12-26 | Noise decrease equipment of deflection yoke |
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KR2019950047690U KR0137181Y1 (en) | 1995-12-26 | 1995-12-26 | Noise decrease equipment of deflection yoke |
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KR970046563U KR970046563U (en) | 1997-07-31 |
KR0137181Y1 true KR0137181Y1 (en) | 1999-02-18 |
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KR2019950047690U KR0137181Y1 (en) | 1995-12-26 | 1995-12-26 | Noise decrease equipment of deflection yoke |
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