JPH0419086U - - Google Patents
Info
- Publication number
- JPH0419086U JPH0419086U JP5861290U JP5861290U JPH0419086U JP H0419086 U JPH0419086 U JP H0419086U JP 5861290 U JP5861290 U JP 5861290U JP 5861290 U JP5861290 U JP 5861290U JP H0419086 U JPH0419086 U JP H0419086U
- Authority
- JP
- Japan
- Prior art keywords
- parabolic
- parabolic waveform
- dynamic focus
- focus coil
- focus
- 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
- 230000005415 magnetization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Details Of Television Scanning (AREA)
Description
第１図はこの考案の一実施例を示すビームフオ
ーカス補正装置を示す図、第２図は従来のビーム
フオーカス補正装置を示す図、第３図はダイナミ
ツクフオーカスコイルにかかる電圧波形を示す図
、第４図は理想的なダイナミツクフオーカス電圧
波形を示す図である。
図において、３はクリンプ回路を示す。なお、
図中、同一符号は同一、または相当部分を示す。
Fig. 1 shows a beam focus correction device that is an embodiment of this invention, Fig. 2 shows a conventional beam focus correction device, and Fig. 3 shows the voltage waveform applied to the dynamic focus coil. The diagram shown in FIG. 4 is a diagram showing an ideal dynamic focus voltage waveform. In the figure, 3 indicates a crimp circuit. In addition,
In the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
発生するパラボラ波形発生回路とこのパラボラ波
の直流成分を零にするためある一定電圧でクラン
プするクランプ回路、更にこれを適当な大きさに
増幅するパラボラ波形出力回路、これらの回路よ
りできるパラボラ電流を流すダイナミツクフオー
カスコイルを持ち、更に上記ダイナミツクフオー
カスコイルで生じる磁界と合わせた時初めて最適
着磁量が得られるようになる永久磁石を有したフ
オーカスマグネツトを備えたことを特徴とするビ
ームフオーカス補正装置。 In a television receiver, there is a parabolic waveform generation circuit that generates a parabolic waveform, a clamp circuit that clamps the parabolic wave at a certain voltage to zero the DC component, and a parabolic waveform output circuit that amplifies it to an appropriate size. , a focus magnet that has a dynamic focus coil that flows a parabolic current generated by these circuits, and a permanent magnet that can only obtain the optimum amount of magnetization when combined with the magnetic field generated by the dynamic focus coil. A beam focus correction device characterized by being equipped with a net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5861290U JPH0419086U (en) | 1990-06-01 | 1990-06-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5861290U JPH0419086U (en) | 1990-06-01 | 1990-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419086U true JPH0419086U (en) | 1992-02-18 |
Family
ID=31584383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5861290U Pending JPH0419086U (en) | 1990-06-01 | 1990-06-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419086U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199487A (en) * | 1984-10-19 | 1986-05-17 | Sony Corp | Convergence or beam spot correcting circuit |
-
1990
- 1990-06-01 JP JP5861290U patent/JPH0419086U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199487A (en) * | 1984-10-19 | 1986-05-17 | Sony Corp | Convergence or beam spot correcting circuit |
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