JPS62168467A - Horizontal deflecting circuit - Google Patents
Horizontal deflecting circuitInfo
- Publication number
- JPS62168467A JPS62168467A JP893886A JP893886A JPS62168467A JP S62168467 A JPS62168467 A JP S62168467A JP 893886 A JP893886 A JP 893886A JP 893886 A JP893886 A JP 893886A JP S62168467 A JPS62168467 A JP S62168467A
- Authority
- JP
- Japan
- Prior art keywords
- horizontal
- voltage
- point
- varied
- horizontal frequency
- 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
Links
- 230000003287 optical effect Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 13
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、各種の水平周波数に対して自動追従するディ
スプレイやテレビジョン受像機に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a display or television receiver that automatically tracks various horizontal frequencies.
（従来の技術）
従来、ディスプレイやテレビジョン受像機において自動
追従する水平周波数は、単一の水平周波数だけに限られ
ていた。(Prior Art) Conventionally, horizontal frequencies automatically tracked in displays and television receivers have been limited to only a single horizontal frequency.
（参考文献； ＮＨＫテレビジョン技術教科書上）（発
明が解決しようとする問題点）
従来の方法は、単一水平周波数だけに関するものであり
、水平周波数が変化すると、縦線の幾何学的歪が生ずる
欠点があった。(Reference: NHK Television Technology Textbook) (Problem to be solved by the invention) The conventional method concerns only a single horizontal frequency, and when the horizontal frequency changes, the geometric distortion of the vertical line changes. There were some drawbacks.
本発明の［１的は、従来の欠点を解消し、各種の水平周
波数に自動追従する水平偏向回路を提供することである
。An object of the present invention is to provide a horizontal deflection circuit that eliminates the drawbacks of the conventional art and automatically tracks various horizontal frequencies.
（問題点を解決するための手段）
本発明の水平偏向回路は、水平周波数の多周波対応ディ
スプレイにおいて、ダイオードモジュレータ回路を有し
、水平周波数の変化に対して、フライバックトランスの
一次側°市圧が変化する機器において、この一次側電圧
を利用して縦線の幾何学的歪補正量を制御するものであ
る。(Means for Solving the Problems) The horizontal deflection circuit of the present invention has a diode modulator circuit in a horizontal frequency multi-frequency display, and has a diode modulator circuit that responds to changes in the horizontal frequency by In equipment where pressure changes, this primary side voltage is used to control the geometrical distortion correction amount of the vertical line.
（作 用）
本発明によれば、水平周波数の変化により、フライバッ
ク１−ランスの一次側電圧が変化し、それに伴ない、水
平偏向電流が変調され、これにより縦線の幾何学的歪が
最適に補正されるものである。(Function) According to the present invention, the primary side voltage of the flyback lance changes due to a change in the horizontal frequency, and the horizontal deflection current is accordingly modulated, thereby reducing the geometric distortion of the vertical line. This is the one that is optimally corrected.
（実施例） 本発明の一実施例を図面に基づいて説明する。(Example) An embodiment of the present invention will be described based on the drawings.
図面は本発明の水平偏向回路図である。同図において、
１は基準電圧発生装置、２は一定の増幅度をもった増幅
器、３は水平出力トランジスタのコレクタパルス波高値
の安定化用電源である。４゜５．６，７，８，９，１０
，１１，１２は差動増幅器を構成するトランジスタであ
り、１３．１４．１５．１６゜１７、１８．１９．２０
．２１は差動増幅器を構成する抵抗器である。２２はフ
ライバックトランス、２３は水平出力トランジスタ、２
４は水平偏向電流変調用トランジスタ、２５は偏向コイ
ル、２６は８字補正用コンデンサ、２７．２８．２９は
ダンパーダイオード、３０゜３１は共振コンデンサ、３
２は平滑用コンデンサ、３３゜３４はコレクタパルス取
り出し用コンデンサ、３５はツェナーダイオード、３６
．３７は（ｂ）焦電圧変化に対する差動増幅器の増幅カ
ーブを定めるものであり、安定化用電源３は、（Ｃ）点
の電圧が常に一定となるようにフライバックトランス２
２の（ｂ）焦電圧を可変とさせるものである。The drawing is a horizontal deflection circuit diagram of the present invention. In the same figure,
1 is a reference voltage generator, 2 is an amplifier having a constant amplification degree, and 3 is a power source for stabilizing the peak value of the collector pulse of the horizontal output transistor. 4゜5.6,7,8,9,10
, 11, 12 are transistors forming a differential amplifier, 13.14.15.16°17, 18.19.20
．． 21 is a resistor constituting a differential amplifier. 22 is a flyback transformer, 23 is a horizontal output transistor, 2
4 is a transistor for horizontal deflection current modulation, 25 is a deflection coil, 26 is a capacitor for figure 8 correction, 27, 28, 29 is a damper diode, 30° 31 is a resonance capacitor, 3
2 is a smoothing capacitor, 33° 34 is a collector pulse extraction capacitor, 35 is a Zener diode, 36
．． 37 determines the amplification curve of the differential amplifier with respect to (b) pyroelectric voltage change, and the stabilizing power supply 3 connects the flyback transformer 2 so that the voltage at point (C) is always constant.
2(b) The pyroelectric voltage is made variable.
次に、上記構成における水平偏向回路の動作を説明する
。Next, the operation of the horizontal deflection circuit with the above configuration will be explained.
図において、（ａ）点に縦線の幾何学的歪を補正するパ
ラボラ波形を入力するとコンデンサ３８を通じて、トラ
ンジスタ４ないし１２、および抵抗器１３ないし２１お
よびバイパスコンデンサ３９によって構成される差動増
幅器により増幅され、トランジスタ１１を通し、−率の
増幅度をもつ増幅器２を通してトランジスタ１１のベー
スにパラボラ電圧が加えられる。In the figure, when a parabolic waveform for correcting the geometrical distortion of the vertical line is input to point (a), it is transmitted through a capacitor 38 to a differential amplifier constituted by transistors 4 to 12, resistors 13 to 21, and a bypass capacitor 39. The parabolic voltage is amplified and applied to the base of the transistor 11 through the transistor 11 and through the amplifier 2 having an amplification factor of -.
また、水平偏向回路においては、水平出力トランジスタ
２３のコレクタパルスをコンデンサ３３．３４により容
量分割を行って、安定化用電源３は、（Ｃ，）点の電圧
が一定となるようにフライバックトランス２２の（ｂ）
焦電圧が可変される。この（ｂ）焦電圧を抵抗器３７を
通してトランジスタ８のベースに電圧を加え、さらに抵
抗器３６を通して、ツェナーダイオード３５に電圧を加
えると同時に、トランジスタ９のベースに電圧を加える
。この結果、水平周波数が変わると（ｂ）焦電圧が変化
し、トランジスタ８，９のベース電位差は変化する。そ
して（ｄ）点のパラボラ波形は、水平周波数が高くなれ
ば大きく、低くなれば小さくなる。そしてこのパラボラ
電圧をコイル４０、コンデンサ３２の交点に加えると、
偏向コイル２５に流れる電流が変調され、縦線の幾何学
的歪が変化する。In the horizontal deflection circuit, the collector pulse of the horizontal output transistor 23 is capacitance-divided by capacitors 33 and 34, and the stabilizing power supply 3 is connected to a flyback transformer so that the voltage at point (C,) is constant. 22(b)
The pyrovoltage is varied. This (b) pyrovoltage is applied to the base of the transistor 8 through the resistor 37, and further applied to the Zener diode 35 through the resistor 36, and at the same time, the voltage is applied to the base of the transistor 9. As a result, when the horizontal frequency changes, (b) the pyrovoltage changes, and the base potential difference between the transistors 8 and 9 changes. The parabolic waveform at point (d) becomes larger as the horizontal frequency becomes higher, and becomes smaller as the horizontal frequency becomes lower. Then, when this parabolic voltage is applied to the intersection of the coil 40 and the capacitor 32,
The current flowing through the deflection coil 25 is modulated, and the geometrical distortion of the vertical line changes.
（発明の効果）
本発明によれば、水平周波数が変化すれば、フライバッ
クトランスの一次側電圧が変化し、それに伴ない、水平
偏向型ｄε源が変調され、これにより縦線の幾何学的歪
が簡単に最適に補正される効果がある。(Effects of the Invention) According to the present invention, when the horizontal frequency changes, the primary side voltage of the flyback transformer changes, and the horizontal deflection type dε source is modulated accordingly. This has the effect of easily and optimally correcting distortion.
４、 図面のＭ 、Ｑ’−な説明 図面は本発明の一実施例による水平偏向回路である。4. M, Q'- explanation of drawings The drawing shows a horizontal deflection circuit according to an embodiment of the present invention.
１・・・基７＜ｔ！電圧発生装置、２・・・増幅器。1...Group 7<t! Voltage generator, 2...amplifier.
３・・・安定化用電源、４，５，６，７，８゜９ 、１
０．１．１．１２・・・１−ランジスタ、１３．１４゜
１５、１６．１７．１８．１０．２０．２１．３６．３
７・・・抵抗器、２２・・・フライバック１−ランス、
２３・・水平出力トランジスタ、２４・・・水平偏向電
流変調用トランジスタ、２５・・・偏向コイル、２６・
・・８字補正用コンデンサ、２７．２８゜２９・・・ダ
ンパーダイオード、３０．３１・・・共振コンデンサ、
３２・・・平滑用コンデンサ、３３゜３４、３８．３９
・・・コンデンサ、３５・・・ツェナーダイオード、４
０・・・コイル。3... Stabilization power supply, 4, 5, 6, 7, 8゜9, 1
0.1.1.12...1-ransistor, 13.14°15, 16.17.18.10.20.21.36.3
7...Resistor, 22...Flyback 1-lance,
23... Horizontal output transistor, 24... Horizontal deflection current modulation transistor, 25... Deflection coil, 26...
・・Capacitor for figure 8 correction, 27.28゜29・・Damper diode, 30.31・・Resonance capacitor,
32...Smoothing capacitor, 33°34, 38.39
... Capacitor, 35 ... Zener diode, 4
0...Coil.
Claims (1)
ードモジュレータ回路を有し、前記水平周波数の変化に
対して、フライバックトランスの一次側電圧が変化する
機器において、該一次側電圧を利用して縦線の幾何学的
歪補正量を制御することを特徴とする水平偏向回路。In a horizontal frequency multi-frequency display, in a device that has a diode modulator circuit and the primary side voltage of a flyback transformer changes in response to changes in the horizontal frequency, the vertical line geometry is adjusted using the primary side voltage. A horizontal deflection circuit characterized by controlling an amount of optical distortion correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP893886A JPS62168467A (en) | 1986-01-21 | 1986-01-21 | Horizontal deflecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP893886A JPS62168467A (en) | 1986-01-21 | 1986-01-21 | Horizontal deflecting circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62168467A true JPS62168467A (en) | 1987-07-24 |
| JPH0525428B2 JPH0525428B2 (en) | 1993-04-12 |
Family
ID=11706608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP893886A Granted JPS62168467A (en) | 1986-01-21 | 1986-01-21 | Horizontal deflecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62168467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0259792A (en) * | 1988-08-26 | 1990-02-28 | Hitachi Ltd | Circuit for correcting horizontal s-distortion |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54137225A (en) * | 1978-04-17 | 1979-10-24 | Sony Corp | Correction circuit for pincushion distortion |
| JPS5730466A (en) * | 1980-06-23 | 1982-02-18 | Rca Corp | Right and left yarn winding strain correcting circuit |
| JPS59137672A (en) * | 1983-01-25 | 1984-08-07 | Akimoto Valve Kogyo Kk | Water supply pressure controlling apparatus and excessive-flow suppressing valve therefor |
| JPS60223380A (en) * | 1984-04-20 | 1985-11-07 | Matsushita Electric Ind Co Ltd | Picture distortion correcting circuit |
-
1986
- 1986-01-21 JP JP893886A patent/JPS62168467A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54137225A (en) * | 1978-04-17 | 1979-10-24 | Sony Corp | Correction circuit for pincushion distortion |
| JPS5730466A (en) * | 1980-06-23 | 1982-02-18 | Rca Corp | Right and left yarn winding strain correcting circuit |
| JPS59137672A (en) * | 1983-01-25 | 1984-08-07 | Akimoto Valve Kogyo Kk | Water supply pressure controlling apparatus and excessive-flow suppressing valve therefor |
| JPS60223380A (en) * | 1984-04-20 | 1985-11-07 | Matsushita Electric Ind Co Ltd | Picture distortion correcting circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0259792A (en) * | 1988-08-26 | 1990-02-28 | Hitachi Ltd | Circuit for correcting horizontal s-distortion |
| JP2523808B2 (en) * | 1988-08-26 | 1996-08-14 | 株式会社日立製作所 | Horizontal S-shaped distortion correction circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0525428B2 (en) | 1993-04-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |