JPH0435271A - Horizontal deflection circuit - Google Patents

Horizontal deflection circuit

Info

Publication number
JPH0435271A
JPH0435271A JP13630990A JP13630990A JPH0435271A JP H0435271 A JPH0435271 A JP H0435271A JP 13630990 A JP13630990 A JP 13630990A JP 13630990 A JP13630990 A JP 13630990A JP H0435271 A JPH0435271 A JP H0435271A
Authority
JP
Japan
Prior art keywords
horizontal
circuit
voltage
output
voltage supply
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.)
Pending
Application number
JP13630990A
Other languages
Japanese (ja)
Inventor
Katsuaki Shimaoka
克明 島岡
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13630990A priority Critical patent/JPH0435271A/en
Priority to CA 2042480 priority patent/CA2042480C/en
Priority to DE19914116883 priority patent/DE4116883C2/en
Publication of JPH0435271A publication Critical patent/JPH0435271A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23Distortion correction, e.g. for pincushion distortion correction, S-correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)

Abstract

PURPOSE:To prevent image distortion occurring by providing an automatic horizontal frequency control means, and a means to modulate a voltage to be supplied to a drive transformer corresponding to the vertical synchronous AC component of the voltage to be supplied to a horizontal deflection output circuit. CONSTITUTION:A voltage supply transistor 24 which supplies the voltage to the drive transformer 4, a capacitor 28 interposed between the variable terminal of a variable resistor 22 and the base of the voltage supply transistor 24, and a base bias setting means which sets the base bias of the voltage supply transistor 24 are provided at a horizontal drive voltage modulation circuit 21. The voltage to be supplied to the drive transformer 4 is modulated with a vertical period corresponding to the magnitude of a horizontal deflecting current. Therefore, it is possible to maintain a vertical linear state without inclining or bending the vertical line of an image even when, for example, horizontal trapezoidal correction or horizontal pin-cushion correction is applied. Thereby, the image irregularity can be eliminated.

Description

【発明の詳細な説明】 産業上の利用分野 未発明はディスプレイ受像時の画像歪の補正機能を有す
る水平偏向回路に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a horizontal deflection circuit having a function of correcting image distortion during image reception on a display.

従来の技術 a近は、コンピュータの普及に伴ない、コンピュータデ
ィスプレイとしてKGB入力端子を装備した直視管、ま
たは、ビデオプロジェクタ−が専用開発されるようにな
ってきた。
BACKGROUND OF THE INVENTION Recently, with the spread of computers, direct viewing tubes or video projectors equipped with KGB input terminals have been specially developed as computer displays.

第2図は従来の水平偏向回路の構成を示す回路図である
。第2図において、水平発振回路1は遅延回路2に接続
されるとともに、水平発振出力増幅回路3を介して、コ
レクタが水平ドライブトランス4の1次巻線の一端に接
続され、エミッタが接地されている水平ドライブトラン
ジスタ5のベースに接続されている。また、遅延回路2
は水平同期信号6が入力される水平自動周波数制御回路
C以下、水平AFC回路という)6に接続され、さらに
、水平AFC回路6は水平発振回路lに接続され、遅延
回路2からの遅延出力すと水平同期信号6とが位相比較
器で位相比較されてその比較出力dにより水平発振回路
1の水平発振周波数が水平同期信号周波数に制御される
。水平ドライブトランス4の1次巻線の他端は電圧供給
端子に接続されて水平ドライブ用定電圧B1が供給され
る。以上により水平ドライブ回路が構成される。
FIG. 2 is a circuit diagram showing the configuration of a conventional horizontal deflection circuit. In FIG. 2, a horizontal oscillation circuit 1 is connected to a delay circuit 2, a collector is connected to one end of the primary winding of a horizontal drive transformer 4 via a horizontal oscillation output amplification circuit 3, and an emitter is grounded. The horizontal drive transistor 5 is connected to the base of the horizontal drive transistor 5. In addition, the delay circuit 2
is connected to a horizontal automatic frequency control circuit C (hereinafter referred to as horizontal AFC circuit) 6 into which the horizontal synchronizing signal 6 is input, and furthermore, the horizontal AFC circuit 6 is connected to a horizontal oscillation circuit l, and the delayed output from the delay circuit 2 is and the horizontal synchronizing signal 6 are compared in phase by a phase comparator, and the comparison output d controls the horizontal oscillation frequency of the horizontal oscillation circuit 1 to the horizontal synchronizing signal frequency. The other end of the primary winding of the horizontal drive transformer 4 is connected to a voltage supply terminal and is supplied with a constant voltage B1 for horizontal drive. The horizontal drive circuit is configured as described above.

また、水平ドライブトランス4の2次巻線の一端は水平
出力トランジスタ7のベースに接続され、そのコレクタ
は、水平チョークコイル8を介して水平レギュレーショ
ントランジスタ9のエミッタに接続されるとともに、水
平ダンノで一ダイオード10のカソード、水平共振コン
デンサ11および水平偏向コイル12の一端に接続され
てL)る。さらに、水平出力トランジスタ7のエミッタ
、水平ダン/で一ダイオード10のアノードおよび水平
共振コンデンサ11の他端は接地され、また、水平偏向
コイル12の他端は水平8字補正コンデンサ13を介し
て接地されている。このように、水平出力トランジスタ
7、水平チョークコイル8、水平ダンノく一ダイオード
10、水平共振コンデンサ11、水平偏向フィル12お
よび水平S字補正コンデン?13によす水平偏向出力回
路が構成される。この水平偏向出力回路と水平ドライブ
回路とで水平偏向回路が構成される。
Further, one end of the secondary winding of the horizontal drive transformer 4 is connected to the base of the horizontal output transistor 7, and its collector is connected to the emitter of the horizontal regulation transistor 9 via the horizontal choke coil 8. The cathode of one diode 10 is connected to one end of the horizontal resonant capacitor 11 and the horizontal deflection coil 12 (L). Further, the emitter of the horizontal output transistor 7, the anode of the horizontal diode 10, and the other end of the horizontal resonant capacitor 11 are grounded, and the other end of the horizontal deflection coil 12 is grounded via the horizontal figure-of-eight correction capacitor 13. has been done. In this way, the horizontal output transistor 7, the horizontal choke coil 8, the horizontal Dannokuichi diode 10, the horizontal resonant capacitor 11, the horizontal deflection filter 12, and the horizontal S-shaped correction capacitor? A horizontal deflection output circuit 13 is constructed. This horizontal deflection output circuit and horizontal drive circuit constitute a horizontal deflection circuit.

なお、水平レギュレーショントランジスタ9のコレクタ
には水平偏向用電圧B2が供給される。
Note that a horizontal deflection voltage B2 is supplied to the collector of the horizontal regulation transistor 9.

上記水平偏向出力回路の直接の動作については、画像歪
補正機能と直接関係しないので、ここでは省略し、水平
偏向回路の画像歪補正機能について説明する。
The direct operation of the horizontal deflection output circuit is not directly related to the image distortion correction function, so it will be omitted here, and the image distortion correction function of the horizontal deflection circuit will be explained.

コンピュータの水平同期信号と表示信号領域の位相関係
は、コンピュータによって異なっているので、表示信号
を画面の中央にもってくるため、従来は第2図のような
回路構成により、水平発振回路lからの、第3図(a)
に丞す水平発振回路息を遅延回路2に入力し、第3図(
b)に示す遅延回路2の出力すと第3図(gl)に示す
水平同期信号・とを位相比較して水平AF′C回路6を
機能させ、上記遅延回路2の遅延時間番、をコントロー
ルするという方法をとっている。この方法において従来
は、水平ドライブトランス4に供給する電圧Blは、一
定電圧を加えており、このため、第4図の水平台形補正
、または、第5図の水平ビンクツション補正を画像に加
えると、水平出力トランジスタ7のコレクタ電流13が
それぞれ第6図、第7図のように、垂直周期■で変化す
ることになり、第3図fdlのベース電流凰1のIbe
odは一定なので、水平出力トランジスタ7のドライブ
条件が垂直周期で変化することになる。ここで、第6図
および第7図におけろfHは水平周波数、rvは垂直周
波数を示す。
Since the phase relationship between the horizontal synchronization signal and the display signal area of a computer differs depending on the computer, in order to bring the display signal to the center of the screen, conventionally, the circuit configuration shown in Figure 2 was used to bring the display signal from the horizontal oscillation circuit l. , Figure 3(a)
The horizontal oscillation circuit output is input to the delay circuit 2, and as shown in Fig. 3 (
The phase of the output of the delay circuit 2 shown in b) is compared with the horizontal synchronization signal shown in FIG. The method is to do this. Conventionally, in this method, a constant voltage is applied to the voltage Bl supplied to the horizontal drive transformer 4, and therefore, when horizontal trapezoidal correction as shown in FIG. 4 or horizontal binction correction as shown in FIG. 5 is applied to the image, As shown in FIGS. 6 and 7, the collector current 13 of the horizontal output transistor 7 changes with a vertical period .
Since od is constant, the drive condition of the horizontal output transistor 7 changes in a vertical period. Here, in FIGS. 6 and 7, fH indicates a horizontal frequency, and rv indicates a vertical frequency.

発明が解決しようとする課題 このような従来の回路構成においては、第3図(Il+
に示す水平出力トランジスタ7の電荷蓄積時間も、が垂
直周期で変化することになり、水平同期信号6と水平出
力トランジスタ7のコレクタ電圧である水平偏向出力パ
ルス・の位相関係が垂直周期で変化するので、画像が第
4図および第5図の7線のように歪んでしまうという問
題を有していた。
Problems to be Solved by the Invention In such a conventional circuit configuration, as shown in FIG.
The charge accumulation time of the horizontal output transistor 7 shown in FIG. 1 also changes with the vertical period, and the phase relationship between the horizontal synchronization signal 6 and the horizontal deflection output pulse, which is the collector voltage of the horizontal output transistor 7, changes with the vertical period. Therefore, there was a problem in that the image was distorted as shown by line 7 in FIGS. 4 and 5.

本発明は上記従来の問題を解決するもので、表示信号を
画面の中央に表示させることができて画像歪を除去する
ことができる水平偏向回路を提供することを目的とする
ものである。
The present invention solves the above-mentioned conventional problems, and aims to provide a horizontal deflection circuit that can display a display signal at the center of the screen and eliminate image distortion.

課題を解決するための手段 上記課題を解決するために大発明の水平偏向回路は、周
波数が所定周波数に利己される水平発振信号を出力させ
る水平自動周波数制御手段と、前記水平発振信号lこよ
り駆動され水平偏向出力回路の水平偏向出力用スイッチ
ング素子を駆動するドライブトランスに供給する電圧を
、前記水平偏向出力回路に供給する電圧の垂直同期交流
成分に応じて変調する手段とを備えたものである。
Means for Solving the Problems In order to solve the above problems, the horizontal deflection circuit of the great invention includes a horizontal automatic frequency control means for outputting a horizontal oscillation signal whose frequency is adjusted to a predetermined frequency, and a horizontal deflection circuit that is driven by the horizontal oscillation signal. and means for modulating a voltage supplied to a drive transformer for driving a horizontal deflection output switching element of the horizontal deflection output circuit in accordance with a vertically synchronized AC component of the voltage supplied to the horizontal deflection output circuit. .

また、本発明の水平偏向回路は、陰極線管ディスプレイ
装置の水平偏向回路であって、水平発振信号を遅延させ
る遅延回路と、前記遅延回路からの遅延信号と水平同期
信号の位相を比較して比較出力信号を出力し、前記比較
出力信号により水平発振周波数を前記水平同期信号周波
数に制(社)させて前記水平発振信号を出力させる水平
自動周波数制御手段と、前記水平発振信号により駆動さ
れ水平偏向出力回路の水平偏向出力用スイッチング素子
を駆動するドライブトランスの電圧供給端子と前記水平
偏向出力回路に電圧供給する水平レギュレーショントラ
ンジスタの出力端の間に介装された水平ドライブ電圧変
調回路とを備え、前記水平ドライブ電圧変調回路は、前
記水平レギュレーショントランジスタの出力端と接地間
に介装された可変抵抗器と、前記ドライブトランスに電
圧を供給する電圧供給トランジスタと、前記5J変抵抗
器のor変端子と前記電圧供給トランジスタのベースの
間に介装されたコンデンサと、前記電圧供給トランジス
タのベースバイアスを設定するベースバイアス設定手段
と、前記電圧供給トランジスタの出力端と前記ドライブ
トランスの間に介装された積分回路とを有するものであ
る。
Further, the horizontal deflection circuit of the present invention is a horizontal deflection circuit for a cathode ray tube display device, and includes a delay circuit that delays a horizontal oscillation signal, and a phase of a delayed signal from the delay circuit and a horizontal synchronization signal are compared and compared. horizontal automatic frequency control means for outputting an output signal and controlling the horizontal oscillation frequency to the horizontal synchronization signal frequency by the comparison output signal to output the horizontal oscillation signal; and a horizontal deflection device driven by the horizontal oscillation signal. a horizontal drive voltage modulation circuit interposed between a voltage supply terminal of a drive transformer that drives a horizontal deflection output switching element of an output circuit and an output terminal of a horizontal regulation transistor that supplies voltage to the horizontal deflection output circuit; The horizontal drive voltage modulation circuit includes a variable resistor interposed between the output end of the horizontal regulation transistor and ground, a voltage supply transistor that supplies voltage to the drive transformer, and an OR terminal of the 5J resistor. a capacitor interposed between the base of the voltage supply transistor and the base of the voltage supply transistor; a base bias setting means for setting a base bias of the voltage supply transistor; and a capacitor interposed between the output terminal of the voltage supply transistor and the drive transformer. It has an integral circuit.

作用 上記構成により、ドライブトランスに供給する電圧を水
平偏向電流の大きさに応じて、垂直周期の交流成分波形
に対応してfilしているので、水平出力トランジスタ
のドライブ条件が垂直周期で変化することなく、これに
より、画像歪の発生が除去される。
Effect With the above configuration, the voltage supplied to the drive transformer is filtered in accordance with the magnitude of the horizontal deflection current and in accordance with the AC component waveform of the vertical period, so the drive condition of the horizontal output transistor changes in the vertical period. This eliminates the occurrence of image distortion.

実施例 以下、大発明の一実施例について図面を参照しながら説
明する。
EXAMPLE Hereinafter, an example of the great invention will be described with reference to the drawings.

第1図は未発明の一実施例を示す水平偏向回路の回路図
であり、従来例と同一の構成要素には同一の符号をけし
てその説明を省略する。第1図において、水平ドライブ
トランス4の電圧供給端子と水平レギュレーショントラ
ンジスタ9のエミッタとの開に水平ドライブ電圧変調回
路21を介装している。すなわち、水平レギュレーショ
ントランジスタ9のエミッタはOJ変低抵抗器22介し
て接地され、可変抵抗器22の可変端子は交流成分伝達
コンデンサ23を介して電圧供給トランジスタ24のベ
ースと、抵抗25 、26の中点に接続されている。電
圧供給トランジスタ24のコレクタはコレクタ電圧供給
端子B3に接続されるとともに抵抗25 、26を介し
て接地されている。電圧供給トランジスタ24のエミッ
タは抵抗27ヲ介して水平ドライブトランス4の1次巻
線の電圧供給端に接続されるとともにフィルタコンデン
サ28を介して接地され、また、エミッタは抵抗29を
介して接地されている。
FIG. 1 is a circuit diagram of a horizontal deflection circuit showing an embodiment of the invention, in which the same components as those of the conventional example are designated by the same reference numerals and their explanations will be omitted. In FIG. 1, a horizontal drive voltage modulation circuit 21 is interposed between the voltage supply terminal of the horizontal drive transformer 4 and the emitter of the horizontal regulation transistor 9. That is, the emitter of the horizontal regulation transistor 9 is grounded via the OJ variable resistor 22, and the variable terminal of the variable resistor 22 is connected to the base of the voltage supply transistor 24 via the AC component transfer capacitor 23 and the inside of the resistors 25 and 26. Connected to the dots. The collector of the voltage supply transistor 24 is connected to the collector voltage supply terminal B3 and is also grounded via resistors 25 and 26. The emitter of the voltage supply transistor 24 is connected to the voltage supply end of the primary winding of the horizontal drive transformer 4 via a resistor 27 and grounded via a filter capacitor 28, and the emitter is grounded via a resistor 29. ing.

上記構成により、画像に第4図に示すような台形補正が
かかった場合、水平レギュレーショントランジスタ9の
エミッタ電圧は、垂直鋸歯状波厘となってあられれる。
With the above configuration, when an image is subjected to trapezoidal correction as shown in FIG. 4, the emitter voltage of the horizontal regulation transistor 9 forms a vertical sawtooth waveform.

この波形は、可変抵抗22、さらに、コンデンサ23を
通じて、電圧供給トランジスタ24のエミッタ電圧の垂
直周期交流成分となってあられれ、これにより、水平ド
ライブトランス4に供給する電圧が、垂直鋸歯状波g′
で変調されることになる。したがって、水平出力トラン
ジスタ7のベース電流l、のIb5ndも垂直周期で変
化することになり、水平出力トランジスタ7のドライブ
条件は、従来のように、垂直周期で変化するということ
はなく、常に一定に保たれろ。したがって第3図tel
の1!で表現している電荷蓄積時間を常に一定に保つこ
とができ、これにより、台形歪補正をかけても縦線が第
4図の破線のように傾くということはなく、垂直な直線
を維持することができる。このことは、ビンクツション
補正を力弓ブでも同様のことがいえる。
This waveform becomes a vertical periodic AC component of the emitter voltage of the voltage supply transistor 24 through the variable resistor 22 and further through the capacitor 23, so that the voltage supplied to the horizontal drive transformer 4 becomes a vertical sawtooth waveform. ′
It will be modulated by Therefore, Ib5nd of the base current l of the horizontal output transistor 7 also changes with the vertical period, and the drive conditions of the horizontal output transistor 7 do not change with the vertical period as in the conventional case, but are always constant. Be preserved. Therefore, Figure 3 tel
No. 1! The charge accumulation time, expressed as be able to. The same can be said for the case where the binction correction is performed using a power bow.

また、遅延回路2の遅延時間九1は外部より調整可能で
あり、この遅延時fllltlを調整すれば画像の幅a
整をすることができる。
Further, the delay time 91 of the delay circuit 2 can be adjusted from the outside, and by adjusting fllltl during this delay, the image width a
I can make adjustments.

発明の効果 以上のように本発明によれば、Fライブトランスに供給
する電圧を水平偏向電流の大きさに応じて垂直周期で変
調しているので、たとえば、水平台形補正や水平ビンク
ツション補正を行っても、画像の縦線は、従来のように
傾いたり、あるいはわん曲したすせず、垂直な直線の状
態を維持することができて、画像歪を除去することがで
きるものである。
Effects of the Invention As described above, according to the present invention, the voltage supplied to the F-live transformer is modulated with a vertical period according to the magnitude of the horizontal deflection current, so that, for example, horizontal keystone correction or horizontal binction correction can be performed. However, the vertical line of the image can be maintained as a vertical straight line instead of being tilted or curved as in the conventional case, and image distortion can be removed.

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

第1FI!Jは本発明の一実施例を示す水平偏向回路の
回路図、第2図は従来の水平偏向回路の回路図、第3図
(ml〜第3図(IIは第1図および第2図の各要部に
おける波形図、第4図は水平台形補正状態図、第5図は
水平ビンクツション補正状態図、第6図は水平台形補正
時の水平出力トランジスタ7のコレクタ電流を示す波形
図、第7図は水平ビンクツション補正時の水平出力トラ
ンジスタ7のコレクタ電流を示す波形図である。 l・・・水平発振回路、2・−・遅延回路、4・・・水
平ドライブトランス、6・・・水平AFC回路、7・−
・水平出力トランジスタ、9・・・水平レギュレーショ
ントランジスタ、21・・・水平ドライブ電圧変調回路
、22・・・可変抵抗器、23−・・交流成分伝運コン
デンサ、24・・・電圧供給トランジスタ、25.26
,27.29・−・抵抗、28−・・フィルタコンデン
サ。
First FI! J is a circuit diagram of a horizontal deflection circuit showing an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional horizontal deflection circuit, and FIG. Waveform diagrams for each main part, FIG. 4 is a horizontal trapezoidal correction state diagram, FIG. 5 is a horizontal binction correction state diagram, FIG. 6 is a waveform diagram showing the collector current of the horizontal output transistor 7 during horizontal trapezoidal correction, and FIG. The figure is a waveform diagram showing the collector current of the horizontal output transistor 7 during horizontal binction correction.l...Horizontal oscillation circuit, 2...Delay circuit, 4...Horizontal drive transformer, 6...Horizontal AFC circuit, 7・-
- Horizontal output transistor, 9... Horizontal regulation transistor, 21... Horizontal drive voltage modulation circuit, 22... Variable resistor, 23-... AC component transfer capacitor, 24... Voltage supply transistor, 25 .26
, 27.29...Resistor, 28-...Filter capacitor.

Claims (1)

【特許請求の範囲】 1、周波数が所定周波数に制御される水平発振信号を出
力させる水平自動周波数制御手段と、前記水平発振信号
により駆動され水平偏向出力回路の水平偏向出力用スイ
ッチング素子を駆動するドライブトランスに供給する電
圧を、前記水平偏向出力回路に供給する電圧の垂直周期
交流成分に応じて変調する手段とを備えた水平偏向回路
。 2、陰極線管ディスプレイ装置の水平偏向回路であつて
、水平発振信号を遅延させる遅延回路と、前記遅延回路
からの遅延信号と水平同期信号の位相を比較して比較出
力信号を出力し、前記比較出力信号により水平発振周波
数を前記水平同期信号周波数に制御させて前記水平発振
信号を出力させる水平自動周波数制御回路と、前記水平
発振信号により駆動され水平偏向出力回路の水平偏向出
力用スイッチング素子を駆動するドライブトランスの電
圧供給端子と前記水平偏向出力回路に電圧供給する水平
レギユレーシヨントランジスタの出力端の間に介装され
た水平ドライブ電圧変調回路とを備え、前記水平ドライ
ブ電圧変調回路は、前記水平レギユレーシヨントランジ
スタの出力端と接地間に介装された可変抵抗器と、前記
ドライブトランスに電圧を供給する電圧供給トランジス
タと、前記可変抵抗器の可変端子と前記電圧供給トラン
ジスタのベースの間に介装されたコンデンサと、前記電
圧供給トランジスタのベースバイアスを設定するベース
バイアス設定手段と、前記電圧供給トランジスタの出力
端と前記ドライブトランスの間に介装された積分回路と
を有する水平偏向回路。
[Claims] 1. Horizontal automatic frequency control means for outputting a horizontal oscillation signal whose frequency is controlled to a predetermined frequency; and a horizontal deflection output switching element driven by the horizontal oscillation signal to drive a horizontal deflection output circuit of a horizontal deflection output circuit. A horizontal deflection circuit comprising: means for modulating a voltage supplied to a drive transformer according to a vertical period AC component of a voltage supplied to the horizontal deflection output circuit. 2. A horizontal deflection circuit of a cathode ray tube display device, which includes a delay circuit that delays a horizontal oscillation signal, and compares the phase of the delayed signal from the delay circuit and the horizontal synchronization signal to output a comparison output signal, and a horizontal automatic frequency control circuit that controls the horizontal oscillation frequency to the horizontal synchronization signal frequency using an output signal and outputs the horizontal oscillation signal; and a horizontal deflection output switching element of the horizontal deflection output circuit that is driven by the horizontal oscillation signal. and a horizontal drive voltage modulation circuit interposed between a voltage supply terminal of a drive transformer and an output terminal of a horizontal regulation transistor that supplies voltage to the horizontal deflection output circuit, the horizontal drive voltage modulation circuit comprising: a variable resistor interposed between the output end of the horizontal regulation transistor and ground; a voltage supply transistor for supplying voltage to the drive transformer; a variable terminal of the variable resistor and a base of the voltage supply transistor; a horizontal capacitor interposed between the capacitor, base bias setting means for setting a base bias of the voltage supply transistor, and an integrating circuit interposed between the output terminal of the voltage supply transistor and the drive transformer; Deflection circuit.
JP13630990A 1990-05-25 1990-05-25 Horizontal deflection circuit Pending JPH0435271A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP13630990A JPH0435271A (en) 1990-05-25 1990-05-25 Horizontal deflection circuit
CA 2042480 CA2042480C (en) 1990-05-25 1991-05-13 Horizontal deflection circuit
DE19914116883 DE4116883C2 (en) 1990-05-25 1991-05-23 Horizontal deflection circle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13630990A JPH0435271A (en) 1990-05-25 1990-05-25 Horizontal deflection circuit

Publications (1)

Publication Number Publication Date
JPH0435271A true JPH0435271A (en) 1992-02-06

Family

ID=15172186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13630990A Pending JPH0435271A (en) 1990-05-25 1990-05-25 Horizontal deflection circuit

Country Status (3)

Country Link
JP (1) JPH0435271A (en)
CA (1) CA2042480C (en)
DE (1) DE4116883C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0639570A (en) * 1993-04-28 1994-02-15 Calsonic Corp Method for welding metal honeycomb carrier
US6500393B2 (en) 1998-01-08 2002-12-31 Honda Giken Kogyo Kabushiki Kaisha Metal support for exhaust gas purifying catalyst
KR100657622B1 (en) * 2005-07-13 2006-12-14 한국철도기술연구원 The steering bogie for railway vehicle
USRE42041E1 (en) 1999-09-29 2011-01-18 Sony Corporation Recording and/or reproducing device for disks

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5798621A (en) * 1996-03-18 1998-08-25 Thomson Consumer Electronics, Inc. Horizontal deflection circuit with raster correction
US6081078A (en) * 1996-05-17 2000-06-27 Thomson Consumer Electronics, Inc. Vertical deflection circuit with raster correction

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693755B2 (en) * 1987-03-30 1994-11-16 株式会社日立製作所 Television distortion correction circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0639570A (en) * 1993-04-28 1994-02-15 Calsonic Corp Method for welding metal honeycomb carrier
US6500393B2 (en) 1998-01-08 2002-12-31 Honda Giken Kogyo Kabushiki Kaisha Metal support for exhaust gas purifying catalyst
USRE42041E1 (en) 1999-09-29 2011-01-18 Sony Corporation Recording and/or reproducing device for disks
USRE42763E1 (en) 1999-09-29 2011-09-27 Sony Corporation Recording and/or reproducing device for disks
KR100657622B1 (en) * 2005-07-13 2006-12-14 한국철도기술연구원 The steering bogie for railway vehicle

Also Published As

Publication number Publication date
CA2042480A1 (en) 1991-11-26
DE4116883A1 (en) 1991-11-28
CA2042480C (en) 1995-06-20
DE4116883C2 (en) 1994-09-29

Similar Documents

Publication Publication Date Title
JP2556305B2 (en) Deflection circuit
JP2006074804A (en) Deflection current waveform generator
JP2823844B2 (en) Voltage regulator
JPH0435271A (en) Horizontal deflection circuit
JPH05252408A (en) High-voltage generating circuit
US6020694A (en) Horizontal size regulation circuit of display device
KR100236508B1 (en) Pincushion correction circuit with gullwing compensation
US6002380A (en) Circuit for compensating for vertical distortion of image by modes in display
US4289994A (en) Vertical drive circuit for video display
EP0572219B1 (en) Bi-directional scan circuit
JPS6363284A (en) Line deflection circuit
US5466993A (en) Deflection apparatus for raster scanned CRT displays
JP2651820B2 (en) Deflection circuit for video display device
KR100363053B1 (en) Bias correction waveform generator and video display system
KR100433301B1 (en) Switching clamping
JP3636499B2 (en) Voltage change compensation arrangement for sample and hold capacitance
KR100190534B1 (en) Horizontal deflection output circuit
JP3191986B2 (en) Deflection circuit
JP3231216B2 (en) Display device
JP3318679B2 (en) Deflection circuit
JPS6184971A (en) Horizontal deflecting device
JP2847751B2 (en) Flyback pulse width switching circuit in diode modulation correction circuit
JPS61144979A (en) Horizontal afc circuit
JPS62243479A (en) Left and right pincushion distortion correcting circuit
JPH05273931A (en) Circuit for correcting raster distortion