JPS63200965U - - Google Patents
Info
- Publication number
- JPS63200965U JPS63200965U JP9229687U JP9229687U JPS63200965U JP S63200965 U JPS63200965 U JP S63200965U JP 9229687 U JP9229687 U JP 9229687U JP 9229687 U JP9229687 U JP 9229687U JP S63200965 U JPS63200965 U JP S63200965U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- ray tube
- cathode ray
- voltage
- display device
- 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)
Description
第１図は本考案になるデイスプレイ装置の一実
施例を示す図、第２図は本考案になるデイスプレ
イ装置の一実施例の具体回路例を示す図、第３図
は第１図及び第２図の各部の電圧波形図、第４図
〜第６図は従来例を示す図である。
１……フライバツクトランス、２……ダイオー
ドブロツク、３……水平出力ＮＰＮトランジスタ
、４……ダンパダイオード、５……共振容量、６
……偏向コイル、７……Ｓ字補正コンデンサ、８
……アノード容量、９……陰極線管、１０……陰
極線管９の外部導電膜、１５……電源回路、１６
……基準電圧発生回路、１７……電圧低下検出回
路、１８……ブライト制御回路、１９……安定化
出力電圧、２０……第１の抵抗、２１……第２の
抵抗、２２……ベース抵抗、２３……ＮＰＮトラ
ンジスタ、Ａ……陰極線管９のアノード。
FIG. 1 is a diagram showing an embodiment of the display device according to the present invention, FIG. 2 is a diagram showing a specific circuit example of the display device according to the present invention, and FIG. Voltage waveform diagrams at various parts in the figure, FIGS. 4 to 6, are diagrams showing conventional examples. 1... Flyback transformer, 2... Diode block, 3... Horizontal output NPN transistor, 4... Damper diode, 5... Resonant capacitor, 6
... Deflection coil, 7 ... S-shaped correction capacitor, 8
... Anode capacity, 9 ... Cathode ray tube, 10 ... External conductive film of cathode ray tube 9, 15 ... Power supply circuit, 16
... Reference voltage generation circuit, 17 ... Voltage drop detection circuit, 18 ... Bright control circuit, 19 ... Stabilized output voltage, 20 ... First resistor, 21 ... Second resistor, 22 ... Base Resistor, 23... NPN transistor, A... Anode of cathode ray tube 9.
Claims (1)
、主電源を切断した時に、交流電源入力より整流
され、安定化回路による安定化出力電圧あるいは
フライバツクトランスから減圧整流して得られる
直流電圧が所定設定電圧より低下することを検出
する検出回路と、この検出によりビデオ回路から
の信号が供給されるブライト制御回路に電圧を加
えることにより陰極線管にビーム電流を流し、前
記陰極線管に蓄積された高圧を放電させるように
したことを特徴とするデイスプレイ装置。 In a display device equipped with a cathode ray tube, when the main power supply is cut off, the DC voltage that is rectified from the AC power input and stabilized by the stabilization circuit or obtained by reduced pressure rectification from the flyback transformer drops below the predetermined set voltage. A beam current is applied to the cathode ray tube by applying a voltage to a detection circuit that detects the occurrence of a signal from the video circuit and a bright control circuit to which a signal from the video circuit is supplied by this detection, so as to discharge the high voltage accumulated in the cathode ray tube. A display device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9229687U JPS63200965U (en) | 1987-06-16 | 1987-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9229687U JPS63200965U (en) | 1987-06-16 | 1987-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63200965U true JPS63200965U (en) | 1988-12-23 |
Family
ID=30953877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9229687U Pending JPS63200965U (en) | 1987-06-16 | 1987-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63200965U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123768B2 (en) * | 1981-04-15 | 1986-06-07 | Lion Corp | |
| JPS61145967A (en) * | 1984-12-19 | 1986-07-03 | Matsushita Electric Ind Co Ltd | Television receiver |
-
1987
- 1987-06-16 JP JP9229687U patent/JPS63200965U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6123768B2 (en) * | 1981-04-15 | 1986-06-07 | Lion Corp | |
| JPS61145967A (en) * | 1984-12-19 | 1986-07-03 | Matsushita Electric Ind Co Ltd | Television receiver |
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