JPS62112264U - - Google Patents
Info
- Publication number
- JPS62112264U JPS62112264U JP20304385U JP20304385U JPS62112264U JP S62112264 U JPS62112264 U JP S62112264U JP 20304385 U JP20304385 U JP 20304385U JP 20304385 U JP20304385 U JP 20304385U JP S62112264 U JPS62112264 U JP S62112264U
- Authority
- JP
- Japan
- Prior art keywords
- crt
- drive circuit
- cathode
- circuit
- crt drive
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は本考案の他の実施例を示す要部の回路図、第
３図は従来例を示す回路図である。
主要部分の符号の説明、１……ＣＲＴ、２……
フライバツクトランス、Ａ……アノード、Ｈ……
ヒータ、Ｋ……カソード、Ｇ１〜Ｇ３……グリツ
ド。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a circuit diagram of a main part showing another embodiment of the present invention, and FIG. 3 is a circuit diagram showing a conventional example. Explanation of symbols of main parts, 1...CRT, 2...
Flyback transformer, A... Anode, H...
Heater, K...cathode, G1 to G3 ...grid.
Claims (1)
に対して正の直流バイアス電極を印加しかつ前記
第１グリツドに映像信号を供給することによつて
前記ＣＲＴを駆動するＣＲＴドライブ回路であつ
て、前記ＣＲＴドライブ回路の通電中に前記正の
直流バイアス電圧によつて充電される充電回路と
、電源投入時又は遮断時に前記カソードへの直流
バイアス印加回路を経て前記充電回路の電荷を放
電するスイツチング手段とを備えたことを特徴と
するＣＲＴドライブ回路。 A CRT drive circuit for driving a cathode ray tube (CRT) by applying a positive DC bias electrode with respect to a first grid to a cathode of the CRT and supplying a video signal to the first grid, the CRT drive circuit comprising: a charging circuit that is charged by the positive DC bias voltage while the CRT drive circuit is energized; and a switching means that discharges the charge of the charging circuit via the DC bias application circuit to the cathode when the power is turned on or turned off. A CRT drive circuit characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20304385U JPS62112264U (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20304385U JPS62112264U (en) | 1985-12-27 | 1985-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62112264U true JPS62112264U (en) | 1987-07-17 |
Family
ID=31167999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20304385U Pending JPS62112264U (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62112264U (en) |
-
1985
- 1985-12-27 JP JP20304385U patent/JPS62112264U/ja active Pending