JPS5819567U - High voltage control circuit for CRT - Google Patents
High voltage control circuit for CRTInfo
- Publication number
- JPS5819567U JPS5819567U JP11175581U JP11175581U JPS5819567U JP S5819567 U JPS5819567 U JP S5819567U JP 11175581 U JP11175581 U JP 11175581U JP 11175581 U JP11175581 U JP 11175581U JP S5819567 U JPS5819567 U JP S5819567U
- Authority
- JP
- Japan
- Prior art keywords
- crt
- control circuit
- voltage control
- high voltage
- light emitting
- 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図は本考案の一実施例を示す回路図、第２図は本考
案で用いる光導電素子と発光素子とを組み合わせたフォ
トカプラの一例を示す構成説明図である。
Ｃ４，Ｃ２・・・コンデンサ、Ａ・・・増幅器、Ｄ□〜
Ｄ、・・・ダイオード、Ｑ・・・トランジスタ、ＡＤ・
・・ＣＲＴアノード、ＣｄＳ・・・光導電素子、ＬＥＤ
・・・発光ダイオード、ＥＮＣ・・・ケース。FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a configuration explanatory diagram showing an example of a photocoupler combining a photoconductive element and a light emitting element used in the present invention. C4, C2...Capacitor, A...Amplifier, D□~
D...Diode, Q...Transistor, AD・
...CRT anode, CdS...photoconductive element, LED
...Light emitting diode, ENC...case.
Claims (2)
応じて抵抗値が変化する光導電素子と、この光導電素子
を照射するように配置され加えられる信号の大きさに応
じて発光量が変化する発光素子とを含み、発光素子を制
御することによりＣＲＴのアノードに加えられる電圧を
制御す−ることを特徴とするＣＲＴ用高圧制御回路。(1) A photoconductive element that is connected in parallel with the CRT anode circuit and whose resistance value changes depending on the amount of light received, and a photoconductive element that is arranged to illuminate this photoconductive element and whose amount of light emitted changes depending on the magnitude of the applied signal. 1. A high voltage control circuit for a CRT, comprising a variable light emitting element, and controlling a voltage applied to an anode of a CRT by controlling the light emitting element.
た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用高圧制御回路。(2) A high-voltage control circuit for a CRT according to claim 1, characterized in that a photoconductive element and a light emitting element are housed in a common case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11175581U JPS5819567U (en) | 1981-07-28 | 1981-07-28 | High voltage control circuit for CRT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11175581U JPS5819567U (en) | 1981-07-28 | 1981-07-28 | High voltage control circuit for CRT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5819567U true JPS5819567U (en) | 1983-02-07 |
Family
ID=29906099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11175581U Pending JPS5819567U (en) | 1981-07-28 | 1981-07-28 | High voltage control circuit for CRT |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5819567U (en) |
-
1981
- 1981-07-28 JP JP11175581U patent/JPS5819567U/en active Pending
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