JPS6378477U - - Google Patents
Info
- Publication number
- JPS6378477U JPS6378477U JP17385386U JP17385386U JPS6378477U JP S6378477 U JPS6378477 U JP S6378477U JP 17385386 U JP17385386 U JP 17385386U JP 17385386 U JP17385386 U JP 17385386U JP S6378477 U JPS6378477 U JP S6378477U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- horizontal
- frequency
- horizontal deflection
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims 3
- 238000003708 edge detection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 2
Landscapes
- Synchronizing For Television (AREA)
Description
第１図〜第３図は本考案のＣＲＴの水平偏向回
路の一実施例を示す図であり、第１図はそのＣＲ
Ｔの水平偏向回路のブロツク図、第２図はそのＣ
ＲＴの水平偏向回路の回路図、第３図はそのＣＲ
Ｔの水平偏向回路の作用を示す各部の波形図であ
る。第４図は本考案のＣＲＴの水平偏向回路の波
形整形回路の他の例を示す回路図であり、第５図
はその作用を示す波形図である。第６図は従来の
ＣＲＴの水平偏向回路を示すブロツク図である。
１１…位相比較器、１２，３１…波形整形回路
、１３…電圧制御発振器、１４…ドライブ回路、
１５…水平出力回路、１６…水平偏向コイル、１
７…立上り検出回路、２１…ＩＣ、２２…安定化
電源。
1 to 3 are diagrams showing an embodiment of the horizontal deflection circuit of a CRT according to the present invention, and FIG.
The block diagram of the horizontal deflection circuit of T, Figure 2 is that C.
Circuit diagram of horizontal deflection circuit of RT, Figure 3 is its CR
FIG. 3 is a waveform diagram of each part showing the action of the horizontal deflection circuit of T. FIG. 4 is a circuit diagram showing another example of the waveform shaping circuit of the horizontal deflection circuit of a CRT according to the present invention, and FIG. 5 is a waveform diagram showing its operation. FIG. 6 is a block diagram showing a conventional CRT horizontal deflection circuit. 11... Phase comparator, 12, 31... Waveform shaping circuit, 13... Voltage controlled oscillator, 14... Drive circuit,
15...Horizontal output circuit, 16...Horizontal deflection coil, 1
7... Rise detection circuit, 21... IC, 22... Stabilized power supply.
Claims (1)
定周波数のドライブ信号を出力して水平出力回路
から水平偏向コイルにのこぎり波電流を出力させ
るとともに、該のこぎり波電流に対応して発生す
るフライバツクパルスに基づいてのこぎり波電流
の周波数が同期信号の周波数に一致するようにド
ライブ信号の周波数を補正するＣＲＴの水平偏向
回路において、前記フライバツクパルスの立上り
を検出する立上り検出回路を設け、該フライバツ
クパルスの立上り時に基づいて前記ドライブ信号
の周波数を補正することを特徴とするＣＲＴの水
平偏向回路。 (2) 前記立上り検出回路が微分回路であること
を特徴とする実用新案登録請求の範囲第１項記載
のＣＲＴの水平偏向回路。[Claims for Utility Model Registration] (1) A drive signal of a predetermined frequency is output to the horizontal output circuit based on the horizontal synchronization signal to output a sawtooth wave current from the horizontal output circuit to the horizontal deflection coil, and the sawtooth wave current is outputted from the horizontal output circuit to the horizontal deflection coil. The rising edge of the flyback pulse is detected in a CRT horizontal deflection circuit that corrects the frequency of the drive signal so that the frequency of the sawtooth current matches the frequency of the synchronizing signal based on the flyback pulse generated in response to the 1. A horizontal deflection circuit for a CRT, characterized in that a rising edge detection circuit is provided, and the frequency of the drive signal is corrected based on the rising edge of the flyback pulse. (2) The horizontal deflection circuit for a CRT according to claim 1, wherein the rise detection circuit is a differentiating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17385386U JPS6378477U (en) | 1986-11-11 | 1986-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17385386U JPS6378477U (en) | 1986-11-11 | 1986-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6378477U true JPS6378477U (en) | 1988-05-24 |
Family
ID=31111702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17385386U Pending JPS6378477U (en) | 1986-11-11 | 1986-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6378477U (en) |
-
1986
- 1986-11-11 JP JP17385386U patent/JPS6378477U/ja active Pending
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