JPS58158572U - television receiver - Google Patents
television receiverInfo
- Publication number
- JPS58158572U JPS58158572U JP5513182U JP5513182U JPS58158572U JP S58158572 U JPS58158572 U JP S58158572U JP 5513182 U JP5513182 U JP 5513182U JP 5513182 U JP5513182 U JP 5513182U JP S58158572 U JPS58158572 U JP S58158572U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- clamp
- ray tube
- cathode ray
- 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
- Picture Signal Circuits (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図は従来のカソードドライブ方式のパルスクランプ
形ＤＣ結合形テレビジョン受像機回路、第２図は第１図
のブラウン管動作電位図、第３図は従来のカソードドラ
イブ方式のパルスクランプ形ＤＣ結合形テレビジョン受
像機回路、第４図は第３図のブラウン管動作電位図、第
５図は本考案の一実施例を示すカソードドライブ方式の
パルスクランプ形ＤＣ結合形テレビジョン受像機回路、
第６図は第５図のブラウン管動作電位図である。
各図中、同一符号は同一または相当部分を示し、Ｅａは
電源電圧、Ｅｄは電源電圧、Ｅｃはクランプ電圧、１は
映像信号入力端子、２はクランプパルス入力端子、３は
クランプ回路入カトラ、ンジスタ、４はクランプトラン
ジスタ、５はクランプ出力トランジスタ、６は映像出力
トランジスタ、７はブラウン管輝度調整ボリーム、８は
ブラウン管、９は抵抗、１０はトランジスタ、１１はコ
ンデンサ、 □１２は抵抗、１３はダイオード、
１４は抵抗、Ｕｋはブラウン管カソード電位、Ｕｋｏｆ
ｆは入力信号停止時のブラウン管カソード電位、Ｕｇは
ブラウン管グリッド電位である。
（ＵｐｔｏｒＦ） Ｅ４−− −−〜−−−−−−−−
−−−−ｏｖ↑二］ニョ］］ｌに一一］
（４）
、５」 第４−図
、（ｖｙ）、、、−二二Figure 1 shows a conventional cathode drive type pulse clamp type DC coupled television receiver circuit, Figure 2 shows the operational potential diagram of the cathode ray tube shown in Figure 1, and Figure 3 shows a conventional cathode drive type pulse clamp type DC coupled type television receiver circuit. FIG. 4 is a cathode ray tube operating potential diagram as shown in FIG. 3, and FIG. 5 is a cathode drive type pulse-clamp type DC-coupled television receiver circuit showing an embodiment of the present invention.
FIG. 6 is an operating potential diagram of the cathode ray tube shown in FIG. In each figure, the same reference numerals indicate the same or equivalent parts, Ea is the power supply voltage, Ed is the power supply voltage, Ec is the clamp voltage, 1 is the video signal input terminal, 2 is the clamp pulse input terminal, 3 is the clamp circuit input cutter, 4 is a clamp transistor, 5 is a clamp output transistor, 6 is a video output transistor, 7 is a cathode ray tube brightness adjustment volume, 8 is a cathode ray tube, 9 is a resistor, 10 is a transistor, 11 is a capacitor, □12 is a resistor, 13 is a diode ,
14 is the resistance, Uk is the cathode cathode potential of the cathode ray tube, Ukof
f is the cathode potential of the cathode ray tube when the input signal is stopped, and Ug is the grid potential of the cathode ray tube. (UptorF) E4−− −−〜−−−−−−−
-----ov ↑ 2] Nyo]] l ni 1] (4), 5'' Fig. 4, (vy),, -22
Claims (1)
路、同期信号分離回路の出力である同期信号によって入
力映像信号をクランプするクランプ回路、クランプ回路
の出力である直流分再生を受けた映像信号をブラウン管
電極にＤＣ結合によって供給する映像出力回路、前記同
期信号分離回路の出力である同期信号を検出する検出回
路、検出回路の出力によってクランプ回路にバイアス電
圧を供給するバイアス回路とより構成され、入力映像信
号の停止状態においてのみ前記バ・イアス回路が前記ク
ランプ回路に作用しブラウン管電極電圧を一定に保持す
ることを特徴としたテレビジョン受像機。A sync signal separation circuit that detects and separates the sync signal of the input video signal, a clamp circuit that clamps the input video signal using the sync signal that is the output of the sync signal separation circuit, and a video signal that has undergone DC component reproduction that is the output of the clamp circuit. It is composed of a video output circuit that supplies the cathode ray tube electrode by DC coupling, a detection circuit that detects the synchronization signal that is the output of the synchronization signal separation circuit, and a bias circuit that supplies bias voltage to the clamp circuit using the output of the detection circuit. A television receiver characterized in that the bias circuit acts on the clamp circuit to keep the cathode ray tube electrode voltage constant only when the video signal is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5513182U JPS58158572U (en) | 1982-04-14 | 1982-04-14 | television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5513182U JPS58158572U (en) | 1982-04-14 | 1982-04-14 | television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58158572U true JPS58158572U (en) | 1983-10-22 |
Family
ID=30065726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5513182U Pending JPS58158572U (en) | 1982-04-14 | 1982-04-14 | television receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58158572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03120173U (en) * | 1990-03-20 | 1991-12-10 |
-
1982
- 1982-04-14 JP JP5513182U patent/JPS58158572U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03120173U (en) * | 1990-03-20 | 1991-12-10 |
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