JPS62152556U - - Google Patents
Info
- Publication number
- JPS62152556U JPS62152556U JP3980986U JP3980986U JPS62152556U JP S62152556 U JPS62152556 U JP S62152556U JP 3980986 U JP3980986 U JP 3980986U JP 3980986 U JP3980986 U JP 3980986U JP S62152556 U JPS62152556 U JP S62152556U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- vertical
- focus
- parabola
- output
- 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
- 230000000737 periodic effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案に係るダイナミツクフオーカス
回路の一実施例を示す回路図、第２図は本考案に
よるフオーカス電圧波形を示す波形図、第３図は
本考案の他の実施例を示す回路図、第４図は従来
のフオーカス電圧波形を示す波形図である。
１……垂直出力部、２……水平出力部、３……
水平出力変調部、４……垂直補正電圧形成部、５
……高圧化出力回路、６……陰極線管、Ｌ１……
垂直偏向コイル、Ｌ２……水平偏向コイル、ＡＭ
１，ＡＭ２……増幅器、Ｑ１〜Ｑ５……トランジ
スタ、Ｒ１……帰還抵抗、Ｃ５……Ｓ字補正コン
デンサ。
FIG. 1 is a circuit diagram showing an embodiment of a dynamic focus circuit according to the present invention, FIG. 2 is a waveform diagram showing a focus voltage waveform according to the present invention, and FIG. 3 is a diagram showing another embodiment of the present invention. The circuit diagram and FIG. 4 are waveform diagrams showing conventional focus voltage waveforms. 1...Vertical output section, 2...Horizontal output section, 3...
Horizontal output modulation section, 4...Vertical correction voltage formation section, 5
...High voltage output circuit, 6...Cathode ray tube, L1 ...
Vertical deflection coil, L 2 ...Horizontal deflection coil, AM
1 , AM2 ...Amplifier, Q1 - Q5 ...Transistor, R1 ...Feedback resistor, C5 ...S-shaped correction capacitor.
Claims (1)
含み、この抵抗の両端に生ずる電圧を積分して垂
直周期のパラボラ電圧を発生する垂直パラボラ発
生手段と、 水平出力回路の出力に基でいて水平周期のパラ
ボラ電圧を発生する水平パラボラ発生手段と、 前記水平周期のパラボラ電圧を前記垂直周期の
パラボラ電圧で変調する変調手段と、 前記垂直パラボラ発生手段の出力を所定レベル
に制御して垂直フオーカスに適した補正電圧を形
成する垂直フオーカス電圧発生手段と、 この垂直フオーカス電圧発生手段からの電圧に
前記変調手段の出力を重畳し、この電圧を陰極線
管のフオーカス端子に供給する手段とを具備し、 水平周期の補正と垂直周期の補正とを乗算した
補正を行うことを特徴とするダイナミツクフオー
カス回路。[Claims for Utility Model Registration] Vertical parabola generating means that includes a feedback resistor connected in series with a vertical deflection coil and generates a parabolic voltage with a vertical period by integrating the voltage generated across the resistor, and a horizontal output circuit. horizontal parabola generation means for generating a horizontally periodic parabolic voltage based on the output of the horizontally periodic parabola voltage, modulating means for modulating the horizontally periodic parabolic voltage with the vertically periodic parabolic voltage, and adjusting the output of the vertical parabola generating means to a predetermined level. a vertical focus voltage generating means for controlling the voltage to form a correction voltage suitable for vertical focus; and superimposing the output of the modulating means on the voltage from the vertical focus voltage generating means, and supplying this voltage to the focus terminal of the cathode ray tube. 1. A dynamic focus circuit comprising means for: performing correction by multiplying horizontal period correction by vertical period correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3980986U JPS62152556U (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3980986U JPS62152556U (en) | 1986-03-20 | 1986-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62152556U true JPS62152556U (en) | 1987-09-28 |
Family
ID=30853328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3980986U Pending JPS62152556U (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62152556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62261281A (en) * | 1986-05-07 | 1987-11-13 | Sony Corp | Dynamic focus circuit |
| JPH02268078A (en) * | 1989-04-10 | 1990-11-01 | Hitachi Ltd | Electromagnetic focusing device for cathode ray tube |
-
1986
- 1986-03-20 JP JP3980986U patent/JPS62152556U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62261281A (en) * | 1986-05-07 | 1987-11-13 | Sony Corp | Dynamic focus circuit |
| JPH02268078A (en) * | 1989-04-10 | 1990-11-01 | Hitachi Ltd | Electromagnetic focusing device for cathode ray tube |
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