JPS643280U - - Google Patents
Info
- Publication number
- JPS643280U JPS643280U JP9387387U JP9387387U JPS643280U JP S643280 U JPS643280 U JP S643280U JP 9387387 U JP9387387 U JP 9387387U JP 9387387 U JP9387387 U JP 9387387U JP S643280 U JPS643280 U JP S643280U
- Authority
- JP
- Japan
- Prior art keywords
- picture tube
- cathode current
- reproduced image
- color temperature
- color
- 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 2
Landscapes
- Processing Of Color Television Signals (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
第１図は本考案になる受像管ドライブ回路の一
実施例を示す回路図、第２図は従来の受像管ドラ
イブ回路を示す回路図である。
Ｑ１，Ｑ２，Ｑ３……Ｒ，Ｇ，Ｂドライブ用ト
ランジスタ、Ｑ４……制御用トランジスタ、Ｑ５
，Ｑ６……スイツチングトランジスタ、Ｒ１，Ｒ
２，Ｒ４，Ｒ５，Ｒ７，Ｒ８……コレクタ負荷抵
抗、Ｒ１０，Ｒ１１……補正用抵抗、ｇ……カラ
ー受像管。
FIG. 1 is a circuit diagram showing an embodiment of the picture tube drive circuit according to the present invention, and FIG. 2 is a circuit diagram showing a conventional picture tube drive circuit. Q1, Q2, Q3...R, G, B drive transistor, Q4...control transistor, Q5
, Q6...Switching transistor, R1, R
2, R4, R5, R7, R8... Collector load resistance, R10, R11... Correction resistor, g... Color picture tube.
Claims (1)
路であつて、前記カラー受像管の総カソード電流
を検出して、この総カソード電流の大きい時は再
生画像の色温度を高く、総カソード電流が小さい
時は再生画像の色温度が低くなるように構成した
ことを特徴とする受像管ドライブ回路。 A picture tube drive circuit that drives a color picture tube, detects the total cathode current of the color picture tube, and increases the color temperature of the reproduced image when the total cathode current is large, and increases the color temperature of the reproduced image when the total cathode current is small. A picture tube drive circuit characterized in that it is configured to lower the color temperature of a reproduced image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9387387U JPS643280U (en) | 1987-06-18 | 1987-06-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9387387U JPS643280U (en) | 1987-06-18 | 1987-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643280U true JPS643280U (en) | 1989-01-10 |
Family
ID=31318351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9387387U Pending JPS643280U (en) | 1987-06-18 | 1987-06-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643280U (en) |
-
1987
- 1987-06-18 JP JP9387387U patent/JPS643280U/ja active Pending
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