JPH04171635A - Deflecting coil device - Google Patents

Deflecting coil device

Info

Publication number
JPH04171635A
JPH04171635A JP29898190A JP29898190A JPH04171635A JP H04171635 A JPH04171635 A JP H04171635A JP 29898190 A JP29898190 A JP 29898190A JP 29898190 A JP29898190 A JP 29898190A JP H04171635 A JPH04171635 A JP H04171635A
Authority
JP
Japan
Prior art keywords
coil
horizontal
saddle
coils
horizontal coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP29898190A
Other languages
Japanese (ja)
Other versions
JP3041944B2 (en
Inventor
Hisami Tamai
玉井 久視
Kyosuke Aoki
恭介 青木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP2298981A priority Critical patent/JP3041944B2/en
Publication of JPH04171635A publication Critical patent/JPH04171635A/en
Application granted granted Critical
Publication of JP3041944B2 publication Critical patent/JP3041944B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a ringing phenomenon by forming auxiliary horizontal coils into a closed circuit structure so as to generate the deflection magnetic field in the opposite direction to the direction of the main magnetic field generated by a saddle type horizontal coil. CONSTITUTION:Auxiliary horizontal coils 21-24 are wound and fitted inside a toroidal core 17 like saddle type vertical coils 15, 16. The auxiliary horizontal coils 21-24 are magnetically coupled with a saddle type horizontal coil 13 via the toroidal core 17. Values of capacitors of the auxiliary horizontal coils 21-24 are selected so that their resonance frequencies are set near the ringing frequency of the saddle type horizontal coil 13, resonance currents flow in the auxiliary horizontal coils 21-24 respectively, energy is consumed by resistance and damped, and the value of the current of the frequency component related to a ringing phenomenon is reduced. A ringing countermeasure can be obtained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は偏向ヨーク、特に水平コイルがサドル型に巻回
された偏向ヨークの共振が原因となって発生する水平帰
線期間直後の画面左側に生ずる縦縞状のリンギングを防
止した偏向ヨークに関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a deflection yoke, particularly a deflection yoke on the left side of the screen immediately after a horizontal retrace period, which occurs due to resonance of a deflection yoke in which a horizontal coil is wound in a saddle shape. This invention relates to a deflection yoke that prevents vertical striped ringing that occurs in

〔発明の概要〕[Summary of the invention]

本発明のサドル型水平コイルを具備している偏向コイル
では、サドル型水平コイルの画面側開口部と電子銃側開
口部の中間部のコイル部に補助水平コイルを配置し、こ
れを閉回路構成にして前記サドル型水平コイルの不要な
共振をダンプするようにした。
In the deflection coil equipped with the saddle-type horizontal coil of the present invention, an auxiliary horizontal coil is arranged in the coil section between the screen-side opening and the electron gun-side opening of the saddle-type horizontal coil, and this is configured in a closed circuit. In this way, unnecessary resonance of the saddle type horizontal coil is damped.

〔従来の技術〕[Conventional technology]

従来、垂直コイルがトロイダル状に巻回された偏向ヨー
クとして、水平コイルにサドル型、垂直コイルにトロイ
ダル型を使用したテレビジョン受像機においては、第4
図に平面構成図で示したように画面1の左側端に5〜6
本の縦縞模様2が現われることがあった。この現象はリ
ンギング現象といわれ、画質を著しくそこなうものであ
った。
Conventionally, in television receivers that use a saddle-type horizontal coil and a toroidal-type vertical coil as a deflection yoke in which a vertical coil is wound in a toroidal shape, a fourth deflection yoke is used.
5 to 6 on the left side of screen 1 as shown in the plan configuration diagram in the figure.
Vertical striped pattern 2 of the book sometimes appeared. This phenomenon is called a ringing phenomenon and significantly impairs image quality.

第5図は垂直コイルがサドル型に、水平コイルがトロイ
ダル型に巻回された偏向ヨークの一例を説明するための
断面構成図である。図において、3は環状に形成された
トロイダルコアで、このトロイダルコア3にはそれぞれ
対向部分にトロイダル型に水平コイル4,5およびサド
ル型に垂直コイル6.7が各一対ずつ巻回して構成され
ている。
FIG. 5 is a cross-sectional configuration diagram for explaining an example of a deflection yoke in which a vertical coil is wound in a saddle shape and a horizontal coil is wound in a toroidal shape. In the figure, reference numeral 3 denotes a toroidal core formed in an annular shape, and each toroidal core 3 has a pair of toroidal horizontal coils 4, 5 and a saddle-shaped vertical coil 6.7 wound around opposing parts. ing.

このような構成によると、水平コイル4,5はトロイダ
ル型に巻回されているため、各巻線間の分布容量が大き
く、それらと微少巻線部分のインダクタンスとで形成す
る種々の周波数の共振回路を含み持つことになる。した
がって、水平コイル4.5に水平偏向電流が供給される
と、帰線期間のように電流変化の激しい所では共振現象
を起し、トロイダルコア3の内部には電子ビームを水平
に偏向する磁界としての水平偏向磁界8に振動磁界が重
畳される。そして、この振動磁界は帰線期間の始めから
走査期間の最初の部分まで振動が持続するため、走査の
初めに対応する画面左側端での電子ビームは前記振動磁
界で速度変調を受け、この結果、第4図に示したように
画面1の左側端には縦縞模様2のリンギング現象が発生
する。第6図はこのようなリンギング現象がみられる時
の水平偏向コイルの電圧電流の波形を示したものでAは
水平偏向コイル電圧、Bは水平偏向コイル電流の波形で
ある。
According to this configuration, since the horizontal coils 4 and 5 are wound in a toroidal shape, the distributed capacitance between each winding is large, and a resonant circuit of various frequencies is formed by these and the inductance of the minute winding part. It will contain. Therefore, when a horizontal deflection current is supplied to the horizontal coil 4.5, a resonance phenomenon occurs in places where the current changes rapidly, such as during the retrace period, and a magnetic field that deflects the electron beam horizontally is generated inside the toroidal core 3. An oscillating magnetic field is superimposed on the horizontal deflection magnetic field 8 as shown in FIG. Since this oscillating magnetic field continues to oscillate from the beginning of the retrace period to the beginning of the scanning period, the electron beam at the left edge of the screen corresponding to the beginning of scanning undergoes velocity modulation by the oscillating magnetic field, resulting in As shown in FIG. 4, a ringing phenomenon of a vertical striped pattern 2 occurs at the left end of the screen 1. FIG. 6 shows the waveform of the voltage and current of the horizontal deflection coil when such a ringing phenomenon occurs, where A is the horizontal deflection coil voltage and B is the waveform of the horizontal deflection coil current.

このようなリンギング現象を改善したものとしては、第
7図に示すようにトロイダル型水平コイル4.5のそれ
ぞれの両端部に合計4個の補助水平コイル9,1.0.
11.12を設けたものが知られている。これらの補助
水平コイルはそれぞれ独立して抵抗とコンデンサを直列
又は並列に接続した回路で終端されている。又、4個の
補助水平コイルすべてを直列持続したものに抵抗とコン
デンサを直列又は並列に接続した回路を終端させている
場合もある。
To improve this ringing phenomenon, a total of four auxiliary horizontal coils 9, 1.0, .
11 and 12 are known. These auxiliary horizontal coils are each independently terminated with a circuit in which a resistor and a capacitor are connected in series or in parallel. In some cases, a circuit in which all four auxiliary horizontal coils are connected in series and a resistor and a capacitor are connected in series or in parallel may be terminated.

次に水平コイルがサドル型の場合の従来技術について説
明する。サドル型水平コイル(図示せず)もトロイダル
型の場合と同様に各線間の分布容量と微少巻線部分のイ
ンダクタンスとで形成する種々の周波数の共振回路を含
み持っている。したがって、水平偏向電流が供給される
と、共振現象を起し、水平偏向磁界に振動磁界が重畳さ
れる。そして前記トロイダル型の場合と同じように、帰
線期間の始めから走査期間の最初の部分まで振動が持続
し、第4図の様に図面1の左側端にリンギング現象が発
生する。
Next, a conventional technique in which the horizontal coil is of a saddle type will be described. Similar to the toroidal type, the saddle type horizontal coil (not shown) also includes resonant circuits of various frequencies formed by the distributed capacitance between each wire and the inductance of the minute winding portion. Therefore, when a horizontal deflection current is supplied, a resonance phenomenon occurs and an oscillating magnetic field is superimposed on the horizontal deflection magnetic field. As in the case of the toroidal type, the vibration continues from the beginning of the retrace period to the beginning of the scanning period, and a ringing phenomenon occurs at the left end of FIG. 1 as shown in FIG.

〔発明が解決しようとする課題] この場合のリンギング現象対策としては、これまで中間
タップ方式、逆巻き方式等が行なわれてきた。中間タッ
プ方式は対になっている一方のコイルの中間よりタップ
を出してそのタップとコイルの巻き初め或いは巻き終り
との間に適当な値のコンデンサを接続し共振回路を構成
し、他方のコイルの浮遊容量による共振エネルギーを相
殺するようにしたものである。しかしその効果は今一つ
というものであった。
[Problems to be Solved by the Invention] As countermeasures against the ringing phenomenon in this case, an intermediate tap method, a reverse winding method, etc. have been used so far. In the center tap method, a tap is inserted from the middle of one of the coils in the pair, a capacitor of an appropriate value is connected between the tap and the beginning or end of winding of the coil, forming a resonant circuit. This is designed to cancel out the resonance energy due to stray capacitance. However, the effect was only modest.

本発明は前記問題を解決し、簡単な方法でリンギング現
象を防止できるようにした偏向ヨークを提供することを
目的としている。
SUMMARY OF THE INVENTION An object of the present invention is to provide a deflection yoke that solves the above-mentioned problems and can prevent the ringing phenomenon in a simple manner.

(問題を解決するための手段〕 本発明は前記目的を達成するために、サドル型水平コイ
ルの画面側開口部と電子銃側聞口部の中間部のコイル部
に補助水平コイルを配置し、この補助水平コイルを前記
サドル型水平コイルの作る主磁界発生方向と逆方向の偏
向磁界を発生するように閉回路構成にした。
(Means for Solving the Problem) In order to achieve the above object, the present invention disposes an auxiliary horizontal coil in a coil section intermediate between the screen side opening and the electron gun side opening of the saddle type horizontal coil, This auxiliary horizontal coil was configured in a closed circuit so as to generate a deflection magnetic field in a direction opposite to the direction in which the main magnetic field generated by the saddle type horizontal coil was generated.

〔作用] サドル型水平コイルの画面側開口部と電子銃側開口部の
中間部のコイル部に補助水平コイルを配置して、その補
助水平コイルの両端に、抵抗とコンデンサを並列又は直
列に接続した回路をもって終端させ閉回路を形成させる
。こうすることにより、補助水平コイルは磁心を介して
サドル型水平コイルと磁気的に結合することになり、サ
ドル型水平コイルにビーム偏向電流を流すと、補助水平
コイルに電流が流れる。ここで補助水平コイルのコンデ
ンサの値を選んでその共振周波数をサドル型水平コイル
のリンギング周波数に近いものに設定すれば、補助水平
コイルに共振電流が流れ、その分エネルギーが消費され
てダンプされる。したかって総体的にサドル型水平コイ
ルに流れる電流のうちでリンギング現象に関係する周波
数成分の電流の値は小さくなる。したがって画面の左側
端に現われる縦縞模様は消えるか又は目立たな(なる。
[Operation] An auxiliary horizontal coil is placed in the coil section between the screen side opening and the electron gun side opening of the saddle type horizontal coil, and a resistor and a capacitor are connected in parallel or in series to both ends of the auxiliary horizontal coil. The circuit is then terminated to form a closed circuit. By doing so, the auxiliary horizontal coil is magnetically coupled to the saddle-shaped horizontal coil through the magnetic core, and when a beam deflection current is applied to the saddle-shaped horizontal coil, a current flows to the auxiliary horizontal coil. If you choose the capacitor value of the auxiliary horizontal coil and set its resonant frequency close to the ringing frequency of the saddle type horizontal coil, a resonant current will flow through the auxiliary horizontal coil, and that energy will be consumed and dumped. . Therefore, of the current flowing through the saddle-type horizontal coil, the value of the current of the frequency component related to the ringing phenomenon becomes small overall. Therefore, the vertical striped pattern that appears on the left edge of the screen disappears or becomes less noticeable.

(実施例〕 以下、本発明を図面に基づいて説明する。(Example〕 Hereinafter, the present invention will be explained based on the drawings.

(a)  第1の実施例の説明 第1図は水平コイルがサドル型に巻回された第1の実施
例の偏向ヨークの分解斜視図である。図において、トロ
イダルコア17に固着されたセパレータA、19、セパ
レークB、20にそってサドル型垂直コイルが1〜ロイ
ダルコア17の内側に巻回されてはりつけられている。
(a) Description of the first embodiment FIG. 1 is an exploded perspective view of a deflection yoke of the first embodiment in which a horizontal coil is wound in a saddle shape. In the figure, saddle-shaped vertical coils are wound and attached inside the toroidal core 17 along the separators A, 19 and separators B, 20 fixed to the toroidal core 17.

更にその内側にサドル型セクシヨン用セパレータ18が
装着されており、又、その内側にサドル型水平コイル1
3がサドル型セクシヨン用セパレーク18の案内溝25
に沿って巻回されている。本発明の補助水平コイル21
,22.23.24は、サドル型垂直コイル15.16
と同しようにトロイダルコア17の内側に巻回して装着
される。本発明の場合は、トロイダルコア17の画面側
から電子銃側へ短冊状に所定の数だけ(例えば本実施例
の場合は5回)巻回したものを4個設けている。この補
助水平コイル 21,22.23.24は独立してそれ
ぞれ抵抗とコンデンサ(図示せず)より成る回路で終端
されている。
Further, a saddle type section separator 18 is installed inside the separator 18, and a saddle type horizontal coil 1 is installed inside the separator 18.
3 is the guide groove 25 of the separate rake 18 for the saddle type section.
is wound along the Auxiliary horizontal coil 21 of the present invention
, 22.23.24 are saddle type vertical coils 15.16
Similarly, it is wound and attached inside the toroidal core 17. In the case of the present invention, four strips of toroidal core 17 are wound a predetermined number of times (for example, five times in this embodiment) from the screen side to the electron gun side. The auxiliary horizontal coils 21, 22, 23, 24 are each independently terminated with a circuit consisting of a resistor and a capacitor (not shown).

このように構成することにより、補助水平コイル21,
22.23.24はトロイダルコア17を介してサドル
型水平コイル13と磁気的に結合する。補助水平コイル
2L  22.23.24のそれぞれのコンデンサの値
を選んでその共振周波数をサドル型水平コイル13のリ
ンギング周波数に近いものに設定すれば、補助水平コイ
ル21゜22.23.24のそれぞれに共振電流が流れ
、その結果、エネルギーが抵抗で消費されダンプされリ
ンギング現象に関係する周波数成分の電流の値は小さく
なる。第2図は本実施例の対策後の水平偏向コイル電圧
と水平偏向コイル電流の波形を示したものである。第6
図と比較してみて分る通りリンギングは消えている。
With this configuration, the auxiliary horizontal coil 21,
22, 23, and 24 are magnetically coupled to the saddle-shaped horizontal coil 13 via the toroidal core 17. By selecting the values of the capacitors of each of the auxiliary horizontal coils 2L 22, 23, 24 and setting their resonant frequencies close to the ringing frequency of the saddle type horizontal coil 13, each of the auxiliary horizontal coils 21, 22, 23, 24 As a result, energy is consumed and dumped in the resistance, and the current value of the frequency component related to the ringing phenomenon becomes small. FIG. 2 shows the waveforms of the horizontal deflection coil voltage and horizontal deflection coil current after the measures taken in this embodiment. 6th
As you can see by comparing it with the figure, the ringing has disappeared.

、  なお、この実施例では補助水平コイル4個を独立
に抵抗とコンデンサによる回路で終端させているが、別
の方法として補助水平コイル4個全てを直列に接続して
から抵抗とコンデンサによる回路で終端してもよい。又
、2個づつでもよい。
In this example, the four auxiliary horizontal coils are independently terminated with a circuit made up of resistors and capacitors, but another method is to connect all four auxiliary horizontal coils in series and then terminate them with a circuit made up of resistors and capacitors. May be terminated. Alternatively, two pieces each may be used.

(b)  第2の実施例の説明 −第3図は、補助水平コイルをサドル型水平コイルのセ
パレータに装着したもので、補助水平コイルをつけたサ
ドル型セクシヨン用セパレーク18の正面図である。こ
れは上下対になっているセパレータの上半分を示したも
ので、補助水平コイルも4個のうち2個しか図示してい
ない。この補助水平コイルをつけたサドル型セクシヨン
用セパレータ25の案内溝に沿ってサドル型の水平コイ
ル(図示せず)が巻回される。
(b) Description of the second embodiment - Fig. 3 is a front view of a separator rake 18 for a saddle type section with an auxiliary horizontal coil attached to a separator of a saddle type horizontal coil. This figure shows the upper half of the upper and lower pairs of separators, and only two of the four auxiliary horizontal coils are shown. A saddle-shaped horizontal coil (not shown) is wound along the guide groove of the saddle-shaped section separator 25 to which the auxiliary horizontal coil is attached.

この図において、補助水平コイル26.28はサドル型
セクシヨン用セパレータ25の案内溝に沿って画面側か
ら電子銃側に短冊状に所定の回数(本実施例の場合、例
えば5回)だけ巻回され、線のはし27.29には抵抗
とコンデンサより構成される回路が接続され、それぞれ
閉回路を形成する。補助水平コイルの装着場所としては
サドル型水平コイル13の窓部(第1図の30)を避け
ればよい。 第1の実施例と比較しての差異については
特記すべきものはない。
In this figure, the auxiliary horizontal coils 26 and 28 are wound in a strip shape from the screen side to the electron gun side a predetermined number of times (for example, 5 times in the case of this embodiment) along the guide groove of the saddle-type section separator 25. A circuit consisting of a resistor and a capacitor is connected to the ends 27 and 29 of the line, respectively, forming a closed circuit. The window portion (30 in FIG. 1) of the saddle type horizontal coil 13 may be avoided as a mounting location for the auxiliary horizontal coil. There is no noteworthy difference in comparison with the first embodiment.

〔発明の効果] 以上説明したように、サドル型水平偏向コイルにリンギ
ング現象対策として本発明の補助水平コイルを用いれば
、中間タップ方式、逆巻き方式のように線の巻き方を変
えたサドル型水平偏向コイルを対にして用いる必要がな
くなる。即ち、全く同じ仕様のサドル型水平偏向コイル
を2個組合せてリンギング対策ができる。又、サドル型
水平偏向コイルを巻回した後でも補助水平コイルの調整
が可能である。したがって生産性が向上する効果がある
[Effects of the Invention] As explained above, if the auxiliary horizontal coil of the present invention is used as a countermeasure against the ringing phenomenon in a saddle-type horizontal deflection coil, the saddle-type horizontal deflection coil can be used in a saddle-type horizontal deflection coil with different wire winding methods, such as the intermediate tap method and the reverse winding method. There is no need to use deflection coils in pairs. That is, ringing can be countered by combining two saddle-type horizontal deflection coils with exactly the same specifications. Furthermore, the auxiliary horizontal coil can be adjusted even after the saddle type horizontal deflection coil is wound. Therefore, it has the effect of improving productivity.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は第一の実施例の偏向ヨークの分解斜視回、第2
図Aは本実施例の水平偏向コイル電圧波形図、第2図B
は水平偏向コイル電流波形図、第3図は補助水平コイル
をつけたサドル型セクシヨン用セパレータの正面図、第
4図はテレビ画面の平面構成図、第5図は偏向ヨーク断
面構成図、第6図Aは水平偏向コイル電圧波形回、第6
図Bは水平偏向コイル電流波形図、第7図はトロイダル
コアに巻回された補助水平コイルの断面模式図を示した
ものである。 2・・・縦縞模様 3・・・トロイダルコア 4.5・・・トロイダル型水平コイル 6.7・・・サドル型垂直コイル 8・・・水平偏向磁界 9、’ 10,11.12・・・補助水平コイル13.
14・・・サドル型水平コイル 15.16・・・サドル型垂直コイル 17・・・トロイダルコア 18・・・サドル型セクシヨン用セパレータ19・・・
セパレータA 20・・・セパレータB 21.22,23.24・・・補助水平コイル26.2
8・・・補助水平コイル 30・・・サドル型水平コイルの窓部 区 ボ 寸 釈
Figure 1 shows an exploded perspective view of the deflection yoke of the first embodiment, and a second
Figure A is a horizontal deflection coil voltage waveform diagram of this embodiment, Figure 2B
3 is a front view of a saddle type section separator equipped with an auxiliary horizontal coil, FIG. 4 is a plan view of a TV screen, FIG. 5 is a cross-sectional view of a deflection yoke, and FIG. Figure A is the horizontal deflection coil voltage waveform, the 6th
Figure B shows a horizontal deflection coil current waveform diagram, and Figure 7 shows a schematic cross-sectional view of an auxiliary horizontal coil wound around a toroidal core. 2... Vertical striped pattern 3... Toroidal core 4.5... Toroidal type horizontal coil 6.7... Saddle type vertical coil 8... Horizontal deflection magnetic field 9,' 10, 11.12... Auxiliary horizontal coil 13.
14... Saddle type horizontal coil 15. 16... Saddle type vertical coil 17... Toroidal core 18... Separator for saddle type section 19...
Separator A 20... Separator B 21.22, 23.24... Auxiliary horizontal coil 26.2
8...Auxiliary horizontal coil 30...Window section size of saddle type horizontal coil

Claims (1)

【特許請求の範囲】[Claims] カラー受像管の電子ビームを偏向させるためにサドル型
水平コイルを具備している偏向ヨークにおいて、前記サ
ドル型水平コイルの画面側開口部と電子銃側開口部の中
間部のコイル部に補助水平コイルを配置し、この補助水
平コイルを前記サドル型水平コイルの作る主磁界発生方
向と逆方向の偏向磁界を発生する閉回路構成にしたこと
を特徴とする偏向ヨーク。
In a deflection yoke that is equipped with a saddle-type horizontal coil for deflecting the electron beam of a color picture tube, an auxiliary horizontal coil is installed in a coil section between the screen-side opening and the electron gun-side opening of the saddle-type horizontal coil. A deflection yoke characterized in that the auxiliary horizontal coil is arranged in a closed circuit configuration to generate a deflection magnetic field in a direction opposite to the main magnetic field generation direction generated by the saddle type horizontal coil.
JP2298981A 1990-11-06 1990-11-06 Deflection coil device Expired - Fee Related JP3041944B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2298981A JP3041944B2 (en) 1990-11-06 1990-11-06 Deflection coil device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2298981A JP3041944B2 (en) 1990-11-06 1990-11-06 Deflection coil device

Publications (2)

Publication Number Publication Date
JPH04171635A true JPH04171635A (en) 1992-06-18
JP3041944B2 JP3041944B2 (en) 2000-05-15

Family

ID=17866692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2298981A Expired - Fee Related JP3041944B2 (en) 1990-11-06 1990-11-06 Deflection coil device

Country Status (1)

Country Link
JP (1) JP3041944B2 (en)

Also Published As

Publication number Publication date
JP3041944B2 (en) 2000-05-15

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