JPH0212630U - - Google Patents
Info
- Publication number
- JPH0212630U JPH0212630U JP9086988U JP9086988U JPH0212630U JP H0212630 U JPH0212630 U JP H0212630U JP 9086988 U JP9086988 U JP 9086988U JP 9086988 U JP9086988 U JP 9086988U JP H0212630 U JPH0212630 U JP H0212630U
- Authority
- JP
- Japan
- Prior art keywords
- photo diode
- voltage
- detection resistor
- intensity
- pulsed light
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Description
第１図は本考案に係る光・電変換回路の一実施
例を示す構成図、第２図は従来の光・電変換回路
の一例を示す構成図である。
１……フオト・ダイオード、２……検出用抵抗
器、３ａ……直流電源、２０……バツフア・アン
プ。
FIG. 1 is a block diagram showing an embodiment of a photoelectric conversion circuit according to the present invention, and FIG. 2 is a block diagram showing an example of a conventional photoelectric conversion circuit. 1...Photo diode, 2...Detection resistor, 3a...DC power supply, 20...Buffer amplifier.
Claims (1)
流に変換するフオト・ダイオードと、このフオト
・ダイオードに直列に接続され光電流を電圧に変
換する検出用抵抗器を備え、検出用抵抗器の端子
よりパルス光の強度に比例した電圧を得る光・電
変換回路において、 ある一定のバイアス電圧を前記フオト・ダイオ
ードと検出用抵抗器の共通接続点の電位に加える
ことにより得られた電圧をバツフア・アンプを介
した後フオト・ダイオードの検出用抵抗器とは接
続されない側の端子に印加し、入力されるパルス
光の強度によらずフオト・ダイオードの両端に印
加される電圧が一定となるようにしたことを特徴
とする光・電変換回路。[Claims for Utility Model Registration] A photo diode that converts incident pulsed light into a photocurrent corresponding to the intensity of the light, and a detection resistor connected in series with the photo diode that converts the photocurrent into voltage. In a photoelectric conversion circuit which obtains a voltage proportional to the intensity of pulsed light from the terminal of the detection resistor, a certain bias voltage is applied to the potential at the common connection point of the photo diode and the detection resistor. The voltage obtained by this is applied to the terminal of the photo diode on the side not connected to the detection resistor after passing through a buffer amplifier, and is applied to both ends of the photo diode regardless of the intensity of the input pulsed light. A photoelectric conversion circuit characterized in that the voltage applied to the circuit is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9086988U JPH051791Y2 (en) | 1988-07-08 | 1988-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9086988U JPH051791Y2 (en) | 1988-07-08 | 1988-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0212630U true JPH0212630U (en) | 1990-01-26 |
| JPH051791Y2 JPH051791Y2 (en) | 1993-01-18 |
Family
ID=31315378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9086988U Expired - Lifetime JPH051791Y2 (en) | 1988-07-08 | 1988-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051791Y2 (en) |
-
1988
- 1988-07-08 JP JP9086988U patent/JPH051791Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH051791Y2 (en) | 1993-01-18 |
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