JPS6247049U

JPS6247049U -

Info

Publication number: JPS6247049U
Application number: JP13909585U
Authority: JP
Priority date: 1985-09-11
Filing date: 1985-09-11
Publication date: 1987-03-23

Description

[Brief explanation of the drawing]

第１図は本考案による偏向ヨーク装置の一実施
例を示す回路接続図、第２図は第１図の偏向ヨー
ク装置に使用される可飽和トランスの構造を示す
断面図、第３図は第２図の可飽和トランスのイン
ダクタンスの変化を示す特性図、第４図はトリレ
ンマ・ミスコンバーゼンスの画面上のパターンを
示す図、第５図はトリレンマ・ミスコンバーゼン
スを補正するのに必要な一対の水平偏向コイルに
対する差電流を示す図、第６図はトリレンマ・ミ
スコンバーゼンスを補正する４極補正磁界を示す
図、第７図および第８図は従来の偏向ヨーク装置
を示す回路接続図および概略構成図である。ＬＨ_１，ＬＨ_２：水平偏向コイル、Ｌｖ：垂直
偏向コイル、ＳＴ_１，ＳＴ_２：可飽和トランス、
Ｌｖ_１〜Ｌｖ_４：制御コイル、Ｌｈ_１，Ｌｈ_２：
被制御コイル、Ｍｇ_１：マグネツト、ＣＥ：Ｅ形
コア、ＣＩ：Ｉ形コア。 Fig. 1 is a circuit connection diagram showing one embodiment of the deflection yoke device according to the present invention, Fig. 2 is a sectional view showing the structure of a saturable transformer used in the deflection yoke device of Fig. Figure 2 is a characteristic diagram showing changes in the inductance of a saturable transformer, Figure 4 is a diagram showing the on-screen pattern of trilemma misconvergence, and Figure 5 is a diagram showing a pair of horizontal patterns necessary to correct trilemma misconvergence. A diagram showing the differential current for the deflection coil, FIG. 6 a diagram showing a quadrupole correction magnetic field for correcting trilemma misconvergence, and FIGS. 7 and 8 a circuit connection diagram and a schematic configuration diagram showing a conventional deflection yoke device. It is. LH ₁ , LH ₂ : horizontal deflection coil, Lv: vertical deflection coil, ST ₁ , ST ₂ : saturable transformer,
_Lv1 to _Lv4 : Control coil, _Lh1 , _Lh2 :
Controlled coil, Mg ₁ : magnet, CE: E type core, CI: I type core.

Claims

[Claims for Utility Model Registration] A pair of saddle-shaped horizontal deflection coils and a toroidal-wound or saddle-shaped vertical deflection coil are connected in parallel, and the horizontal deflection magnetic field is pincushion-shaped and the vertical deflection magnetic field is barrel-shaped. In a self-convergence type deflection yoke device for a three-electron gun inline color cathode ray tube, a controlled coil is wound around the center leg of an E-shaped core, a control coil is wound around each end leg, and each leg of this E-shaped core is wound with a controlled coil around each end leg. The two control coils of the first and second saturable transformers are constructed by arranging I-shaped cores facing each other with an appropriate gap between the ends of the transformers, and by attaching magnets to opposite sides of the I-shaped cores. They are connected in series so that the directions of the magnetic fields are the same, and the magnetic flux of the magnet passing through the I-type core of the first saturable transformer and the magnetic flux due to the control coil are in opposite directions in the first half of the vertical deflection period and in the same direction in the second half. , the control coils of both transformers are connected in series so that the direction of the magnetic flux of the magnet passing through the I-shaped core of the second saturable transformer and the magnetic flux due to the control coil is opposite to that of the first saturable transformer. further connected in series with the vertical deflection coil, a controlled coil of the first saturable transformer is connected in series with a coil disposed at an upper part of the horizontal deflection coils;
A deflection yoke device characterized in that a controlled coil of a saturable transformer is connected in series to a coil disposed at a lower portion of the horizontal deflection coils.