JPH02129657U

JPH02129657U -

Info

Publication number: JPH02129657U
Application number: JP3807589U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-10-25

Description

[Brief explanation of the drawing]

第１図は本考案に係るカラー偏向ヨークを構成
する垂直偏向コイルの一形態例を示し、第１図ａ
は同垂直偏向コイルのネツク側から見た背面図、
第１図ｂは同垂直偏向コイルの側面図、第２図は
本実施例の回路構成図、第３図ａは垂直偏向電流
の波形図、第３図ｂは本実施例の変調回路によつ
て作り出される補正電流の波形図、第４図ａ，ｂ
は本実施例による磁界分布の説明図、第５図ａは
オーバータイプのＢ字状パターンの補正パターン
の説明図、第５図ｂはアンダータイプのＢ字状パ
ターンの補正パターンの説明図、第６図はテレビ
画面の中央部分でＢ字状パターンを補正したとき
に、テレビ画面の周辺部で取り残されるミスコン
バージエンスＹＨのパターン図、第７図はダイオ
ードの立ち上がり特性の説明図、第８図はツエナ
ーダイオードを用いた変調回路の回路図、第９図
はＢ字状パターンの説明図、第１０図はミスコン
バージエンスＹＨの各種パターンの説明図、第１
１図は従来のミスコンバージエンスＹＨの補正装
置の説明図、第１２図は同従来の装置によるミス
コンバージエンスＹＨの補正説明図である。１……偏向ヨーク、２ａ，２ｂ……補正コイル
、３ａ，３ｂ……垂直偏向コイル、４……コア、
５ａ，５ｂ……補助コイル、６……第１のダイオ
ード、７……第２のダイオード、８……抵抗器、
１０……変調回路。 FIG. 1 shows an example of a vertical deflection coil constituting a collar deflection yoke according to the present invention, and FIG.
is a rear view of the same vertical deflection coil as seen from the neck side,
Fig. 1b is a side view of the vertical deflection coil, Fig. 2 is a circuit configuration diagram of this embodiment, Fig. 3a is a waveform diagram of the vertical deflection current, and Fig. 3b is a diagram of the modulation circuit of this embodiment. Waveform diagram of the correction current created by
5A is an explanatory diagram of the magnetic field distribution according to this embodiment, FIG. 5a is an explanatory diagram of the correction pattern for the B-shaped pattern of the over type, FIG. Figure 6 is a pattern diagram of misconvergence YH that is left behind at the periphery of the TV screen when the B-shaped pattern is corrected in the center of the TV screen, Figure 7 is an explanatory diagram of the rise characteristics of the diode, and Figure 8 is a circuit diagram of a modulation circuit using a Zener diode, Fig. 9 is an explanatory diagram of a B-shaped pattern, Fig. 10 is an explanatory diagram of various patterns of misconvergence YH,
FIG. 1 is an explanatory diagram of a conventional misconvergence YH correction device, and FIG. 12 is an explanatory diagram of misconvergence YH correction by the conventional device. 1... Deflection yoke, 2a, 2b... Correction coil, 3a, 3b... Vertical deflection coil, 4... Core,
5a, 5b... Auxiliary coil, 6... First diode, 7... Second diode, 8... Resistor,
10...Modulation circuit.

Claims

[Scope of utility model registration request]

In a collar deflection yoke in which a pair of horizontal deflection coils and a pair of vertical deflection coils are wound on the top side and the bottom side, a central part of the pair of vertical deflection coils wound on the top side and the bottom side is An auxiliary coil that controls the magnetic field pattern of the vertical deflection magnetic field is connected to and wound around the vertical deflection coil. A color deflection yoke characterized by being connected to a diode modulation circuit that blocks current from flowing to the auxiliary coil.