JPS6396760U

JPS6396760U -

Info

Publication number: JPS6396760U
Application number: JP19291186U
Authority: JP
Priority date: 1986-12-15
Filing date: 1986-12-15
Publication date: 1988-06-22

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の実施例に係り、
第１図は本実施例による偏向ヨーク装置の回路構
成図、第２図は可飽和リアクタの具体的構成図、
第３図は本実施例による画面の軸ずれ成分の補正
を示す説明図で、第３図イは補正前の状態を示す
説明図、第３図ロは補助永久磁石による補正後の
状態を示す説明図、第４図は従来技術による画面
特性を示す説明図で、第４図イは画面コーナーに
生じるミスコンバージエンスの状態を示す説明図
、第４図ロは第４図イのミスコンバージエンスを
補正するため可飽和リアクタにて発生するコンバ
ージエンスパターンを示す説明図、第４図ハはこ
れらの合成により補正した状態を示す説明図、第
４図ニは可飽和リアクタによつては補正すること
のできない画面中央の軸ずれ成分を示す説明図、
第４図ホは偏向ヨーク装置の首振りによりニのミ
スコンバージエンスを補正したときのＹＨ軸ずれ
の説明図である。１…可飽和リアクタ、２，３…ドラムコア、４
，５…水平補助コイル、６，７…永久磁石、８…
ボビン、９…垂直補助コイル、１０…補助永久磁
石、１１…回動軸、１２…水平偏向回路、１３，
１３′…水平偏向コイル、１４…垂直偏向回路、
１５，１５′…垂直偏向コイル。 Figures 1 to 3 relate to embodiments of the present invention,
FIG. 1 is a circuit configuration diagram of the deflection yoke device according to this embodiment, and FIG. 2 is a specific configuration diagram of the saturable reactor.
Fig. 3 is an explanatory diagram showing the correction of the axis deviation component of the screen according to this embodiment, Fig. 3 A is an explanatory diagram showing the state before correction, and Fig. 3 B shows the state after correction by the auxiliary permanent magnet. An explanatory diagram, FIG. 4 is an explanatory diagram showing the screen characteristics according to the conventional technology, FIG. 4 A is an explanatory diagram showing the state of misconvergence that occurs at the screen corner, and FIG. An explanatory diagram showing a convergence pattern that occurs in a saturable reactor to correct the convergence pattern, Figure 4 C is an explanatory diagram showing a state corrected by combining these, and Figure 4 D shows a convergence pattern that is corrected depending on the saturable reactor. An explanatory diagram showing the axis deviation component at the center of the screen that cannot be
FIG. 4E is an explanatory diagram of the YH axis deviation when the misconvergence (D) is corrected by swinging the deflection yoke device. 1... Saturable reactor, 2, 3... Drum core, 4
, 5...Horizontal auxiliary coil, 6, 7...Permanent magnet, 8...
Bobbin, 9... Vertical auxiliary coil, 10... Auxiliary permanent magnet, 11... Rotation shaft, 12... Horizontal deflection circuit, 13,
13'...Horizontal deflection coil, 14...Vertical deflection circuit,
15, 15'...Vertical deflection coil.

Claims

[Scope of utility model registration request]

A deflection yoke device comprising a pair of horizontal deflection coils connected in parallel to a horizontal deflection circuit and a pair of vertical deflection coils connected in series to a vertical deflection circuit, including a core and each of the horizontal deflection coils wound around the core. a pair of horizontal auxiliary coils connected in series, a pair of permanent magnets each provided at both ends of the core in the axial direction to apply a magnetic bias to the horizontal auxiliary coils, and a pair of permanent magnets provided on the outer peripheral side of the horizontal auxiliary coils. , comprising misconvergence correction means consisting of the pair of vertical deflection coils and a vertical auxiliary coil connected in series, and the misconvergence correction means includes an auxiliary permanent magnet magnetized in the axial direction of the core. 1. A deflection yoke device configured to be rotatable about an axis perpendicular to the axis, and configured to correct an axis deviation component occurring at the center of the screen by rotating the auxiliary permanent magnet.