JPH03477U - - Google Patents
Info
- Publication number
- JPH03477U JPH03477U JP5993589U JP5993589U JPH03477U JP H03477 U JPH03477 U JP H03477U JP 5993589 U JP5993589 U JP 5993589U JP 5993589 U JP5993589 U JP 5993589U JP H03477 U JPH03477 U JP H03477U
- Authority
- JP
- Japan
- Prior art keywords
- vertical
- amplitude
- circuit
- control means
- crt
- 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
- 230000000087 stabilizing effect Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案の実施例、第２図は本考案の実
施例の垂直鋸歯状波発生回路の原理図、第３図は
従来の垂直振幅回路である。
Ｄ１……ダイオード、Ｒ１……抵抗器、Ｒ２…
…抵抗器、Ｒ３……抵抗器、ＶＲ１……可変抵抗
器、ＶＲ２……可変抵抗器、ＩＣ１……オペアン
プ、Ｃ１……コンデンサ、ＴＲ１……トランジス
タ、Ｔ１……フライバツクトランスである。
FIG. 1 is an embodiment of the present invention, FIG. 2 is a principle diagram of a vertical sawtooth wave generating circuit according to an embodiment of the present invention, and FIG. 3 is a conventional vertical amplitude circuit. D1...Diode, R1...Resistor, R2...
...resistor, R3...resistor, VR1...variable resistor, VR2...variable resistor, IC1...operational amplifier, C1...capacitor, TR1...transistor, T1...flyback transformer.
Claims (1)
高圧出力回路と、同高圧出力回路の変動電圧を検
出する検出手段と、同検出手段による検出電圧に
基づいて垂直鋸歯状波発生回路の垂直振幅調整回
路を制御する制御手段と、同制御手段により垂直
偏向振幅を可変することからなり、前記高圧出力
回路の電圧変動によるＣＲＴ画面の垂直振幅の変
化に対し垂直偏向振幅を補正しＣＲＴの垂直振幅
を安定化させることを特徴とする垂直振幅安定装
置。 (2) 高圧出力回路の変動電圧を検出する検出手
段が抵抗器の分割回路にてなる請求項(1)を含む
垂直振幅安定装置。 (3) 垂直振幅調整回路を制御する制御手段が前
記検出電圧に基づいて変化するインピーダンス変
換器にて可変させることよりなる請求項(1)また
は(2)を含む垂直振幅安定装置。[Claims for Utility Model Registration] (1) A CRT, a high-voltage output circuit that supplies the anode of the CRT, a detection means for detecting the fluctuating voltage of the high-voltage output circuit, and a vertical It comprises a control means for controlling a vertical amplitude adjustment circuit of the sawtooth wave generation circuit, and a control means for varying the vertical deflection amplitude, and the control means varies the vertical deflection amplitude in response to changes in the vertical amplitude of the CRT screen due to voltage fluctuations of the high voltage output circuit. A vertical amplitude stabilizing device that stabilizes the vertical amplitude of a CRT by correcting the amplitude. (2) A vertical amplitude stabilizing device according to claim (1), wherein the detection means for detecting the fluctuating voltage of the high voltage output circuit is a resistor dividing circuit. (3) The vertical amplitude stabilizing device according to claim 1 or 2, wherein the control means for controlling the vertical amplitude adjustment circuit is configured to vary the vertical amplitude adjustment circuit using an impedance converter that changes based on the detected voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5993589U JPH03477U (en) | 1989-05-24 | 1989-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5993589U JPH03477U (en) | 1989-05-24 | 1989-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03477U true JPH03477U (en) | 1991-01-07 |
Family
ID=31586875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5993589U Pending JPH03477U (en) | 1989-05-24 | 1989-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03477U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734661B2 (en) * | 1975-12-25 | 1982-07-24 |
-
1989
- 1989-05-24 JP JP5993589U patent/JPH03477U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5734661B2 (en) * | 1975-12-25 | 1982-07-24 |
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