JPS5915374A - Horizontal afc device - Google Patents
Horizontal afc deviceInfo
- Publication number
- JPS5915374A JPS5915374A JP12406482A JP12406482A JPS5915374A JP S5915374 A JPS5915374 A JP S5915374A JP 12406482 A JP12406482 A JP 12406482A JP 12406482 A JP12406482 A JP 12406482A JP S5915374 A JPS5915374 A JP S5915374A
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- terminal
- horizontal
- resistance
- slicing
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Synchronizing For Television (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はテレビジョン受像機の水平ＡＦＣ装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a horizontal AFC device for a television receiver.
健米例の構成とその問題点 第１図に従来の水ＸＦ−ＡＦＣ装置の回路を示す。Structure of Kenmai example and its problems FIG. 1 shows the circuit of a conventional water XF-AFC device.
端子ａには、水平出力トランジスタのコレクタパルスを
コンデンサ分割した４７ｖ−ｐｐｃりパルスを加える。A 47V-ppc pulse obtained by dividing the collector pulse of the horizontal output transistor by a capacitor is applied to terminal a.
抵抗Ｒ２，ツーナーダイオードＤ１ にまり上記パルス
の上１肉をスライスする。この理由は、上記パルスの上
端部が第２図ａ、 ｂに示すように陰極線管電流によ
り歪んでくるのでこのまま波形を抵抗Ｒ＋、 コンデ
ンサＣ２で積分すると、のこぎり波が微妙に変り水平周
波数が変化するのを除去するためである。この変化は陰
極線管電流に出る縦線が部分的に引っ張られて曲るとい
う現象となって現れる。これを防ぐために／侍に変化の
多いパルスの上側をスライスしこの影ｇを少なくするも
のである。Resistor R2 and Zuner diode D1 slice the upper part of the pulse. The reason for this is that the upper end of the above pulse is distorted by the cathode ray tube current as shown in Figure 2 a and b, so if the waveform is integrated by resistor R+ and capacitor C2, the sawtooth wave will change slightly and the horizontal frequency will change. This is to eliminate the This change appears as a phenomenon in which the vertical line emerging from the cathode ray tube current is partially stretched and bent. In order to prevent this, the upper part of the pulse, which has many changes, is sliced to reduce this shadow g.
しかし水平周波数の変化はパルスの上＄１１１をスライ
スしたのみでは完全に除去できたとは言えない。However, it cannot be said that the change in horizontal frequency could be completely removed by only slicing the upper $111 of the pulse.
プリント基板の設計等で水平パルスのアース電位が第３
図に示すように振らｎて、のこぎり波の波形が変ること
がある。第３図は垂直レートで見た波形を示している。When designing printed circuit boards, etc., the ground potential of the horizontal pulse is
The waveform of the sawtooth wave may change as shown in the figure. FIG. 3 shows the waveform viewed at vertical rate.
なお、抵抗Ｒ１をコンデンサＣ２で得られたのこぎり波
はコンデンサＣ１を介して水平ＡＦ（３回路１に加えら
れる。Note that the sawtooth wave obtained by connecting the resistor R1 to the capacitor C2 is applied to the horizontal AF (3 circuits 1) via the capacitor C1.
発明の目的
本発明は上記のアース電位がリップルによって振られた
場合でも得られるのこぎり波に影響を与えることがない
水平ＡＦＣ装置を提供しようとするものである。OBJECTS OF THE INVENTION The present invention provides a horizontal AFC device that does not affect the resulting sawtooth wave even when the ground potential is varied by ripples.
発明の構成
本発明は、水平ＡＦＣ回路に加えるのこぎり波を作るパ
ルスを水平出力回路から得た水平周期のパルスの」二部
および下部をともにスライスしｔ構成したことを特徴と
するものであり、水平出力回路から得られる水平周期の
パルスのアースレベルが＋７ ノプルによって変動した
場合でも水平ＡＦＣｌ路に加えるのこぎり波に悪影響を
生ずることがないものである。Structure of the Invention The present invention is characterized in that the pulse to create a sawtooth wave applied to the horizontal AFC circuit is configured by slicing both the second part and the lower part of the horizontal period pulse obtained from the horizontal output circuit. Even if the ground level of the horizontally periodic pulse obtained from the horizontal output circuit fluctuates by +7 knots, it will not adversely affect the sawtooth wave applied to the horizontal AFCl path.
実施例の説明
以下本発明の一実施例について図面を参照して説明する
。第４図は本発明の一実施例を示すものであり、第１図
の回路と同一部分については同一番弓をイ・ｊして説明
は省略する。この回路の特徴とするところは、抵抗Ｒ２
のアース側端子を抵抗Ｒ３をブトして接地するとともに
抵抗Ｒ４を介して直流電源端子すに接続し、さらにダイ
オードＤ２を介して端子ａ［接続したことにある。端子
すには１２ボルトの直流電圧を印加し、４．７にΩの抵
抗Ｒ３と１２にΩの抵抗Ｒ４で分圧して、ダイオードＤ
２のカソードＶＣ刀１１えておき、端子ａに刀１１えら
れる・クルレスの下端部がダイオードＤ２を仙もないよ
うにする。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 shows one embodiment of the present invention, and the same parts as the circuit of FIG. The feature of this circuit is that the resistor R2
The ground side terminal of the terminal is grounded through a resistor R3 and connected to a DC power supply terminal through a resistor R4, and further connected to a terminal A through a diode D2. Apply a DC voltage of 12 volts to the terminal, divide it with a resistor R3 of 4.7Ω and a resistor R4 of 12Ω, and connect the diode D.
2 cathode VC sword 11 is set up, and the sword 11 is connected to terminal a. Make sure that the lower end of the cursor does not touch the diode D2.
これによって端子ａに力１１えら扛るパルスの下端１を
除去することができる。This makes it possible to eliminate the lower end 1 of the pulse that exerts a force 11 on the terminal a.
発明の効果
以上のように本発明によれば水ゝＶ−周］υ］の・ぐル
スの−Ｊ’： ；ｉｌｉ ＋ 下端をともにスライス
してからのこき゛り波屯圧を作るようにしたので、陰極
、腺′１！ｊ電流の変動はもちろんのことリンプルによ
る悪影％Ｐをも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, since the wave pressure is created after slicing both the lower ends of the water もV-period]υ]〈Gurus-J': ;ili + Cathode, gland'1! It is possible to eliminate not only fluctuations in the j current but also the bad shadow %P due to rippling.
第１図は従来例における水平ＡＦＣ装置の回路図、第２
図、第３図は同装置説明の／こめの波形図、第４図は本
発明の一実施例における水平ＡＦＣ装置の回路図である
。
１・・・・・・水平ＡＦＣ回路、Ｒ１・・・・・・積分
用抵抗、Ｃ２・・・・・・積分用コンデンサ、Ｄｌ・・
−・・ツェナーダイオード、Ｄ２・・・・・ダイオード
、Ｒ２，Ｒ３，Ｒ４・・・・抵抗。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ＩＪ
Ｉ１図
４’１ｖｐ−ｐ
第３図
アース
第２図
α ｂ
第４図Figure 1 is a circuit diagram of a conventional horizontal AFC device, Figure 2 is a circuit diagram of a conventional horizontal AFC device.
FIG. 3 is a waveform diagram explaining the same device, and FIG. 4 is a circuit diagram of a horizontal AFC device according to an embodiment of the present invention. 1... Horizontal AFC circuit, R1... Integrating resistor, C2... Integrating capacitor, Dl...
-...Zener diode, D2...diode, R2, R3, R4...resistance. Name of agent: Patent attorney Toshio Nakao and one other IJ
I1 Figure 4'1vp-p Figure 3 Earth Figure 2 α b Figure 4
Claims (1)
出力回路から得た水平周期のパルスの上部および下部を
ともにスライスして構成したこと全特徴とする水平ＡＦ
Ｃ装置。A horizontal AF that is characterized in that the pulse to create a sawtooth wave applied to the horizontal AFCl path is constructed by slicing both the upper and lower parts of the horizontal period pulse obtained from the horizontal output circuit.
C device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12406482A JPS5915374A (en) | 1982-07-15 | 1982-07-15 | Horizontal afc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12406482A JPS5915374A (en) | 1982-07-15 | 1982-07-15 | Horizontal afc device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5915374A true JPS5915374A (en) | 1984-01-26 |
Family
ID=14876056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12406482A Pending JPS5915374A (en) | 1982-07-15 | 1982-07-15 | Horizontal afc device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915374A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6285543B1 (en) | 1998-12-01 | 2001-09-04 | Rubycon Corporation | Electrolytic solution for use in electrolytic capacitor and electrolytic capacitor |
| US6349028B1 (en) | 1998-12-03 | 2002-02-19 | Rubycon Corporation | Electrolytic capacitor |
| US7279117B2 (en) | 2001-12-28 | 2007-10-09 | Rubycon Corporation | Electrolytic capacitor and electrolyte solution for use in an electrolytic capacitor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333470U (en) * | 1976-08-30 | 1978-03-23 |
-
1982
- 1982-07-15 JP JP12406482A patent/JPS5915374A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333470U (en) * | 1976-08-30 | 1978-03-23 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6285543B1 (en) | 1998-12-01 | 2001-09-04 | Rubycon Corporation | Electrolytic solution for use in electrolytic capacitor and electrolytic capacitor |
| US6349028B1 (en) | 1998-12-03 | 2002-02-19 | Rubycon Corporation | Electrolytic capacitor |
| US7279117B2 (en) | 2001-12-28 | 2007-10-09 | Rubycon Corporation | Electrolytic capacitor and electrolyte solution for use in an electrolytic capacitor |
| US7660101B2 (en) | 2001-12-28 | 2010-02-09 | Rubycon Corporation | Electrolytic capacitor and electrolyte solution for use in an electrolytic capacitor |
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