JPS62186560U - - Google Patents
Info
- Publication number
- JPS62186560U JPS62186560U JP7447186U JP7447186U JPS62186560U JP S62186560 U JPS62186560 U JP S62186560U JP 7447186 U JP7447186 U JP 7447186U JP 7447186 U JP7447186 U JP 7447186U JP S62186560 U JPS62186560 U JP S62186560U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- power
- pole
- turned
- pole part
- 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
- 239000003990 capacitor Substances 0.000 claims 7
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Details Of Television Scanning (AREA)
Description
図面は本考案の一実施例に係る回路図である。
ＣＲＴは受像管、Ｋはカソード、Ｇ１は第１グ
リツド、ＦＢＴはフライバツクトランス、ＳＹは
電源電源電圧発生回路、ＣＤは放電回路、ＴＲは
制御トランジスタ。
The drawing is a circuit diagram according to an embodiment of the present invention. CRT is a picture tube, K is a cathode, G1 is a first grid, FBT is a flyback transformer, SY is a power source voltage generation circuit, CD is a discharge circuit, and TR is a control transistor.
Claims (1)
つ受像管のビーム電流量を制御するグリツドに接
続されている出力部を有する制御トランジスタと
、 一極部が前記制御トランジスタの出力部と前記
グリツドとの接続部に接続され、電源オフ前に充
電されていた電荷が、電源オフ時には放電してそ
の一極部での電位が変化する第１コンデンサと、 前記制御トランジスタのベースに一極部が接続
され、かつ他極部が前記第１コンデンサの前記一
極部に接続されるとともに、電源オフ時における
前記第１コンデンサの一極部における電位変化を
その他極部に検出出力するように構成された第２
コンデンサとを含み、 電源オフ時には、前記第２コンデンサの一他極
部における前記検出電位変化により、前記制御ト
ランジスタを非導通状態にする一方で前記第２コ
ンデンサの他極部に現れる電位が前記グリツドに
与えられることを特徴とする、電源オフ時におけ
る受像管残存高圧除去回路。[Claims for Utility Model Registration] A control transistor that is made conductive by a power supply voltage applied to an input section and has an output section that is connected to a grid that controls the amount of beam current of a picture tube; a first capacitor connected to a connection between the output part of the control transistor and the grid, the charge charged before the power is turned off is discharged when the power is turned off, and the potential at one pole of the first capacitor changes; One pole part is connected to the base, and the other pole part is connected to the one pole part of the first capacitor, and a potential change at one pole part of the first capacitor when the power is turned off is detected at the other pole part. a second configured to output
and a capacitor, when the power is off, the detected potential change at one other pole of the second capacitor causes the control transistor to be rendered non-conductive, while the potential appearing at the other pole of the second capacitor is applied to the grid. A circuit for removing high voltage remaining in a picture tube when the power is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7447186U JPS62186560U (en) | 1986-05-16 | 1986-05-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7447186U JPS62186560U (en) | 1986-05-16 | 1986-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62186560U true JPS62186560U (en) | 1987-11-27 |
Family
ID=30919719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7447186U Pending JPS62186560U (en) | 1986-05-16 | 1986-05-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62186560U (en) |
-
1986
- 1986-05-16 JP JP7447186U patent/JPS62186560U/ja active Pending
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