JPS5929816U - photodetector - Google Patents
photodetectorInfo
- Publication number
- JPS5929816U JPS5929816U JP12481782U JP12481782U JPS5929816U JP S5929816 U JPS5929816 U JP S5929816U JP 12481782 U JP12481782 U JP 12481782U JP 12481782 U JP12481782 U JP 12481782U JP S5929816 U JPS5929816 U JP S5929816U
- Authority
- JP
- Japan
- Prior art keywords
- photodetector
- amplifier
- photodiode
- current
- operational amplifier
- 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
- Optical Recording Or Reproduction (AREA)
- Amplifiers (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図ないし第７図は従来の光検出器を説明するための
説明図、第８図は本考案に用いられる電流差動Ｏｐアン
プにおける電流ミラー効果に関する説明図、第９図は本
考案に用いられる電流差動Ｏｐアンプの一実施例回路図
、第１０図は本考案の光検出器の一実施例構成、第１１
図は本考案に用いられる電流差動Ｏｐアンプの他の一実
施例回路図を示す。
図中、１はホト・ダイオード、３は電源、９は負帰還抵
抗、１２ないし１．７および２゛２ないし２７は夫々ト
ランジスタ、１８および２１は定電流源、１９および２
９は抵抗、２０は電流差動Ｏｐアンプを表わす。
＋２０１
川 〜
一一→ｉ！ち伺電／Ｌ（Ｎ
↓
第 ８ 図
一力 カFigures 1 to 7 are explanatory diagrams for explaining a conventional photodetector, Figure 8 is an explanatory diagram regarding the current mirror effect in the current differential op-amp used in the present invention, and Figure 9 is an explanatory diagram for explaining the current mirror effect in the current differential op-amp used in the present invention. FIG. 10 is a circuit diagram of an embodiment of the current differential operational amplifier used, and FIG.
The figure shows a circuit diagram of another embodiment of the current differential operational amplifier used in the present invention. In the figure, 1 is a photodiode, 3 is a power supply, 9 is a negative feedback resistor, 12 to 1.7 and 2, 2 to 27 are transistors, 18 and 21 are constant current sources, 19 and 2
9 represents a resistor, and 20 represents a current differential operational amplifier. +201 river ~ 11 → i! Chikiden/L(N ↓ Figure 8 Ichiriki Ka
Claims (1)
変換するホト・ダイオードと該ホト・ダイオードの出力
を増幅する増幅器とをそなえた光検出器において、上記
増幅器は電流ミラー効果を利用した電流差動形の演算増
幅器であることを特徴とする光検出器。A photodetector includes a photodiode that receives modulated light and converts it into an electrical signal corresponding to the amount of received light, and an amplifier that amplifies the output of the photodiode, wherein the amplifier utilizes a current mirror effect. A photodetector characterized by being a current differential type operational amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12481782U JPS5929816U (en) | 1982-08-18 | 1982-08-18 | photodetector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12481782U JPS5929816U (en) | 1982-08-18 | 1982-08-18 | photodetector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5929816U true JPS5929816U (en) | 1984-02-24 |
Family
ID=30284395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12481782U Pending JPS5929816U (en) | 1982-08-18 | 1982-08-18 | photodetector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5929816U (en) |
-
1982
- 1982-08-18 JP JP12481782U patent/JPS5929816U/en active Pending
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