JPH02126467U - - Google Patents
Info
- Publication number
- JPH02126467U JPH02126467U JP3479989U JP3479989U JPH02126467U JP H02126467 U JPH02126467 U JP H02126467U JP 3479989 U JP3479989 U JP 3479989U JP 3479989 U JP3479989 U JP 3479989U JP H02126467 U JPH02126467 U JP H02126467U
- Authority
- JP
- Japan
- Prior art keywords
- focus
- supplied
- generates
- parabolic
- wave voltage
- 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 2
- 238000004804 winding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
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図は第１図の
実施例の動作を説明するための波形図、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
のダイナミツクフオーカス回路を示す回路図、第
５図は従来例の動作を説明するための波形図であ
る。
１……水平チヨークトランス、６……ＣＲＴ、
７……フオーカス電極、８……フオーカストラン
ス、Ｑ１，Ｑ２……トランジスタ。
FIG. 1 is a circuit diagram showing an embodiment of the dynamic focus circuit according to the present invention, FIG. 2 is a waveform diagram for explaining the operation of the embodiment of FIG. 1, and FIG. 3 is a circuit diagram showing an embodiment of the dynamic focus circuit according to the present invention. FIG. 4 is a circuit diagram showing a conventional dynamic focus circuit, and FIG. 5 is a waveform diagram for explaining the operation of the conventional example. 1...Horizontal chiyoke transformer, 6...CRT,
7... Focus electrode, 8... Focus transformer, Q1, Q2... Transistor.
Claims (1)
ラボラ波電圧発生手段と、 １次巻線の一端が基準電位点に接続され他端に
前記水平周期のパルスが供給され、２次巻線の一
端に前記垂直周期のパラボラ波電圧が供給され他
端がＣＲＴのフオーカス電極に接続されるフオー
カストランスとを具備した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] A horizontal output circuit that generates horizontally periodic pulses, a vertical parabolic wave voltage generating means that generates a vertically periodic parabolic voltage, and one end of the primary winding connected to a reference potential point. and a focus transformer, the other end of which is supplied with the horizontal period pulses, one end of a secondary winding supplied with the vertical period parabolic wave voltage, and the other end connected to a focus electrode of a CRT. Features a dynamic focus circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3479989U JPH02126467U (en) | 1989-03-29 | 1989-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3479989U JPH02126467U (en) | 1989-03-29 | 1989-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02126467U true JPH02126467U (en) | 1990-10-18 |
Family
ID=31539587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3479989U Pending JPH02126467U (en) | 1989-03-29 | 1989-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02126467U (en) |
-
1989
- 1989-03-29 JP JP3479989U patent/JPH02126467U/ja active Pending
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