JPH0344978U - - Google Patents
Info
- Publication number
- JPH0344978U JPH0344978U JP1989103508U JP10350889U JPH0344978U JP H0344978 U JPH0344978 U JP H0344978U JP 1989103508 U JP1989103508 U JP 1989103508U JP 10350889 U JP10350889 U JP 10350889U JP H0344978 U JPH0344978 U JP H0344978U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- high voltage
- flyback
- outputs
- generates
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Synchronizing For Television (AREA)
- Studio Circuits (AREA)
- Details Of Television Scanning (AREA)
Description
第１図は本考案に係る水平同期パルス発生回路
の一実施例を示す回路図、第２図は実施例を説明
するための波形図、第３図は従来の水平同期パル
ス発生回路を示す回路図、第４図はフライバツク
パルスを示す波形図、第５図は従来例の問題点を
説明するための説明図である。
２……単安定マルチバイブレータ、３……入力
端子、４……電源端子、５……積分端子、６……
出力端子、１２……反転アンプ、Ｒ１……高圧電
流検出抵抗、Ｒ２，Ｒ３……抵抗、Ｃ４，Ｃ５…
…コンデンサ。
Fig. 1 is a circuit diagram showing an embodiment of the horizontal sync pulse generation circuit according to the present invention, Fig. 2 is a waveform diagram for explaining the embodiment, and Fig. 3 is a circuit diagram showing a conventional horizontal sync pulse generation circuit. 4 are waveform diagrams showing flyback pulses, and FIG. 5 is an explanatory diagram for explaining problems in the conventional example. 2... Monostable multivibrator, 3... Input terminal, 4... Power supply terminal, 5... Integral terminal, 6...
Output terminal, 12...Inverting amplifier, R1...High voltage current detection resistor, R2, R3...Resistor, C4, C5...
...capacitor.
Claims (1)
線期間にフライバツクパルスを発生するフライバ
ツクトランスと、 前記フライバツクパルスがトリガとして与えら
れその積分端子に接続される時定数回路によつて
定まる幅の水平同期パルスを出力する単安定マル
チバイブレータと、 前記フライバツクトランスに接続されて前記高
圧の変化を検出し検出電圧を出力する高圧変化検
出手段と、 前記検出電圧に基づいた補正電圧を前記単安定
マルチバイブレータの積分端子に供給する補正電
圧発生手段とを具備したことを特徴とする水平同
期パルス発生回路。[Claims for Utility Model Registration] A flyback transformer that generates a high voltage to be supplied to a picture tube and also generates a flyback pulse during a horizontal retrace period, and the flyback pulse is applied as a trigger and is connected to its integral terminal. a monostable multivibrator that outputs a horizontal synchronizing pulse with a width determined by a time constant circuit; a high voltage change detection means connected to the flyback transformer that detects a change in the high voltage and outputs a detected voltage; and the detected voltage. and a correction voltage generating means for supplying a correction voltage based on the above to an integral terminal of the monostable multivibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103508U JPH0344978U (en) | 1989-09-05 | 1989-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103508U JPH0344978U (en) | 1989-09-05 | 1989-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344978U true JPH0344978U (en) | 1991-04-25 |
Family
ID=31652340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989103508U Pending JPH0344978U (en) | 1989-09-05 | 1989-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344978U (en) |
-
1989
- 1989-09-05 JP JP1989103508U patent/JPH0344978U/ja active Pending
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