JPS6320671U - - Google Patents
Info
- Publication number
- JPS6320671U JPS6320671U JP11377286U JP11377286U JPS6320671U JP S6320671 U JPS6320671 U JP S6320671U JP 11377286 U JP11377286 U JP 11377286U JP 11377286 U JP11377286 U JP 11377286U JP S6320671 U JPS6320671 U JP S6320671U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- cut
- power
- power supply
- control voltage
- 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
- 238000010894 electron beam technology Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Details Of Television Scanning (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
従来例の回路図である。
４……受像管、５……フライバツクトランス、
６……電源電圧発生回路、１９……受像管の残存
高圧電荷除去回路、２３……スイツチングトラン
ジスタ（スイツチング手段）、２４……制御電圧
出力回路。
FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is a circuit diagram of a conventional example. 4... picture tube, 5... flyback transformer,
6... Power supply voltage generation circuit, 19... Residual high voltage charge removal circuit of the picture tube, 23... Switching transistor (switching means), 24... Control voltage output circuit.
Claims (1)
た映像信号出力トランジスタと、直流電源電圧を
発生する電源電圧発生回路とを具備し、この電源
電圧発生回路は、発生させた直流電圧が、電源遮
断後に所定の時定数で低下するように構成されて
おり、かつ、この電源電圧発生回路からの直流電
圧を、前記映像信号出力トランジスタのコレクタ
と前記カソードとの接続部に与えられるように構
成されている受像管使用機器に具備され、 電源遮断後は、前記時定数よりも小なる時定数
で変化する制御電圧を出力する制御電圧出力回路
と、前記制御電圧出力回路の出力部と前記接続部
との間に接続され、かつ、電源遮断前は、制御電
圧出力回路からの制御電圧により常時オフし、電
源遮断後の前記制御電圧の変化に伴ないオンする
とともに、オン時には、前記接続部の電位を、強
制的に受像管を流れる電子ビームのカツトオフ電
圧以下にするスイツチング手段とで構成されてい
ることを特徴とする受像管の残存高圧電荷除去回
路。[Claims for Utility Model Registration] A picture tube, a video signal output transistor whose collector is connected to the cathode thereof, and a power supply voltage generation circuit that generates a DC power supply voltage. The DC voltage from the power supply voltage generating circuit is configured to decrease with a predetermined time constant after the power is cut off, and the DC voltage from the power supply voltage generation circuit is applied to the connection between the collector of the video signal output transistor and the cathode. a control voltage output circuit that outputs a control voltage that changes with a time constant smaller than the time constant after the power is cut off; It is connected between the output part and the connection part, and is always turned off by the control voltage from the control voltage output circuit before the power is cut off, and is turned on as the control voltage changes after the power is cut off. A residual high-voltage charge removal circuit for a picture tube, characterized in that it sometimes comprises switching means for forcibly lowering the potential of the connection part to a cut-off voltage of an electron beam flowing through the picture tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11377286U JPS6320671U (en) | 1986-07-24 | 1986-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11377286U JPS6320671U (en) | 1986-07-24 | 1986-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6320671U true JPS6320671U (en) | 1988-02-10 |
Family
ID=30995892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11377286U Pending JPS6320671U (en) | 1986-07-24 | 1986-07-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6320671U (en) |
-
1986
- 1986-07-24 JP JP11377286U patent/JPS6320671U/ja active Pending
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