JPH0471075U - - Google Patents
Info
- Publication number
- JPH0471075U JPH0471075U JP11468290U JP11468290U JPH0471075U JP H0471075 U JPH0471075 U JP H0471075U JP 11468290 U JP11468290 U JP 11468290U JP 11468290 U JP11468290 U JP 11468290U JP H0471075 U JPH0471075 U JP H0471075U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- electrode
- current
- terminal
- current source
- 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 description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Picture Signal Circuits (AREA)
Description
第１図は本考案の電流源付きダイオードクラン
プ回路の一実施例の回路図、第２図は動作特性例
図、第３図は構成例を示す回路図、第４図は従来
のダイオードクランプ回路の回路図、第５図及び
第６図は従来の問題点を説明するための図である
。
１……直流分再挿入の対象にされている映像信
号源、２……陰極線管のカソード回路への接続端
子、Ｃ……コンデンサ、Ｄ……ダイオード、Ｅｃ
……基準電圧源、Ｖｃｃ……電源、Ｒ……抵抗、
Ｉｓ……電流源、ＳＷ……スイツチ。
Fig. 1 is a circuit diagram of an embodiment of the diode clamp circuit with current source of the present invention, Fig. 2 is an example of operating characteristics, Fig. 3 is a circuit diagram showing a configuration example, and Fig. 4 is a conventional diode clamp circuit. The circuit diagram of FIG. 5 and FIG. 6 are diagrams for explaining the conventional problems. 1... Video signal source targeted for DC component reinsertion, 2... Connection terminal to the cathode circuit of the cathode ray tube, C... Capacitor, D... Diode, Ec
...Reference voltage source, Vcc...power supply, R...resistance,
Is...Current source, SW...Switch.
Claims (1)
ンサの他方の端子に一方の電極が接続されている
ダイオードの他方の電極を基準電位点に接続する
とともに、クランプ動作の期間だけにオンの状態
となされるスイツチを介して前記したダイオード
の順方向電流と同じ方向の電流を供給する電流源
を前記したダイオードの一方の電極に接続してな
る電流源付きダイオードクランプ回路。 Connect the other electrode of the diode, one electrode of which is connected to the other terminal of the capacitor whose one terminal is connected to the signal source side, to the reference potential point, and keep it in the ON state only during the clamp operation. A diode clamp circuit with a current source, comprising a current source that supplies a current in the same direction as the forward current of the diode through a switch, which is connected to one electrode of the diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11468290U JPH0471075U (en) | 1990-10-31 | 1990-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11468290U JPH0471075U (en) | 1990-10-31 | 1990-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0471075U true JPH0471075U (en) | 1992-06-23 |
Family
ID=31862392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11468290U Pending JPH0471075U (en) | 1990-10-31 | 1990-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0471075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002084461A (en) * | 2000-09-07 | 2002-03-22 | Advantest Corp | Image pickup element drive circuit, image pickup element test unit |
-
1990
- 1990-10-31 JP JP11468290U patent/JPH0471075U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002084461A (en) * | 2000-09-07 | 2002-03-22 | Advantest Corp | Image pickup element drive circuit, image pickup element test unit |
| JP4673477B2 (en) * | 2000-09-07 | 2011-04-20 | 株式会社アドバンテスト | Image sensor drive circuit, image sensor test apparatus |
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