JPS6057267U - blanking circuit - Google Patents
blanking circuitInfo
- Publication number
- JPS6057267U JPS6057267U JP14932783U JP14932783U JPS6057267U JP S6057267 U JPS6057267 U JP S6057267U JP 14932783 U JP14932783 U JP 14932783U JP 14932783 U JP14932783 U JP 14932783U JP S6057267 U JPS6057267 U JP S6057267U
- Authority
- JP
- Japan
- Prior art keywords
- degaussing
- circuit
- output
- coil
- video signal
- 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
Landscapes
- Details Of Television Scanning (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案のブランキング回路の実施例によるブロ
ック図、第２図は消磁回路における消磁電流の時間に対
する変化を示す曲線図、第３図は 一本考案による検
知出力がピーク整流回路を経て得られる出力の時間に対
する変化を示す曲線図、第４図は本考案による映像信号
増幅回路への制御出力電圧の時間に対する変化を示す曲
線図である。
なお図面に記載の記号は下記のものを示す。１・・・カ
ラー陰極線管、２・・・消磁ジイル、３・・・検出コイ
ル、４・・・ピーク整流回路、５・・・トランジスタ、
６・・・スイッチング回路、８・・・映像信号増幅回路
、９・・・消磁回路、１０・・・整流素子、１１・・・
コンチン１す、１２・・・抵抗。Fig. 1 is a block diagram of an embodiment of the blanking circuit of the present invention, Fig. 2 is a curve diagram showing the change in degaussing current with respect to time in the degaussing circuit, and Fig. 3 is a block diagram of an embodiment of the blanking circuit of the present invention. FIG. 4 is a curve diagram showing the change over time of the control output voltage to the video signal amplification circuit according to the present invention. The symbols shown in the drawings indicate the following. DESCRIPTION OF SYMBOLS 1... Color cathode ray tube, 2... Demagnetizing coil, 3... Detection coil, 4... Peak rectifier circuit, 5... Transistor,
6... Switching circuit, 8... Video signal amplification circuit, 9... Degaussing circuit, 10... Rectifying element, 11...
Contin 1s, 12...resistance.
Claims (1)
陰極線管において、前記消磁コイルと電磁結合する消磁
電流検出コイルを設けるとともに、この検出コイルから
消磁期間中に誘導する出力を整流する整流回路を設け、
この整流回路の出力が所定の時定数を有する回路に供給
されることによって生成された直流減衰電圧により前記
カラー陰極線管に映像信号を供給する映像信号増幅回路
の出力を切断するブランキング回路。In a color cathode ray tube provided with a degaussing coil that flows an alternating current attenuation degaussing current, a degaussing current detection coil is provided which is electromagnetically coupled to the degaussing coil, and a rectifier circuit is provided to rectify the output induced from this detection coil during the degaussing period. ,
A blanking circuit that cuts off the output of the video signal amplification circuit that supplies the video signal to the color cathode ray tube using a DC attenuation voltage generated by supplying the output of the rectifier circuit to a circuit having a predetermined time constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14932783U JPS6057267U (en) | 1983-09-27 | 1983-09-27 | blanking circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14932783U JPS6057267U (en) | 1983-09-27 | 1983-09-27 | blanking circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6057267U true JPS6057267U (en) | 1985-04-22 |
Family
ID=30331513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14932783U Pending JPS6057267U (en) | 1983-09-27 | 1983-09-27 | blanking circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6057267U (en) |
-
1983
- 1983-09-27 JP JP14932783U patent/JPS6057267U/en active Pending
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