JPS61129369U - - Google Patents
Info
- Publication number
- JPS61129369U JPS61129369U JP1279085U JP1279085U JPS61129369U JP S61129369 U JPS61129369 U JP S61129369U JP 1279085 U JP1279085 U JP 1279085U JP 1279085 U JP1279085 U JP 1279085U JP S61129369 U JPS61129369 U JP S61129369U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- light receiving
- receiving element
- resistor
- transistor
- 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
- 230000007423 decrease Effects 0.000 claims 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 claims 1
- 230000001629 suppression Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
図はこの考案の実施例を示す回路図である。
１…ダイオード、２…ホトダイオード、３，９
，１０…抵抗、４，８…トランジスタ、７…演算
増幅器（比較器）。
The figure is a circuit diagram showing an embodiment of this invention. 1...Diode, 2...Photodiode, 3,9
, 10...Resistor, 4, 8...Transistor, 7...Operation amplifier (comparator).
Claims (1)
ドからの光出力に感応して光電流が変化する受光
素子とをその順方向同志を突き合わして接続する
とともに、これに更に電流抑制用の抵抗およびス
イツチ用のトランジスタを直列に接続し、この直
列回路を単一の直流電源に接続してなり、また前
記受光素子、抵抗およびトランジスタの直列回路
に並列にバイパス回路を接続し、前記ダイオード
の周囲温度の増減にしたがう前記受光素子の出力
の減増によつて、前記バイパス回路に流れる電流
を増減するようにしてなるレーザーダイオード駆
動装置。 A diode that generates a laser and a light receiving element whose photocurrent changes in response to the optical output from the diode are connected with their forward directions facing each other, and in addition, a resistor for current suppression and a transistor for a switch are connected. are connected in series, and this series circuit is connected to a single DC power supply, and a bypass circuit is connected in parallel to the series circuit of the light receiving element, the resistor, and the transistor, and the diode responds to increases and decreases in the ambient temperature of the diode. A laser diode driving device configured to increase or decrease the current flowing through the bypass circuit by decreasing or increasing the output of the light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1279085U JPS61129369U (en) | 1985-01-30 | 1985-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1279085U JPS61129369U (en) | 1985-01-30 | 1985-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61129369U true JPS61129369U (en) | 1986-08-13 |
Family
ID=30496187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1279085U Pending JPS61129369U (en) | 1985-01-30 | 1985-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61129369U (en) |
-
1985
- 1985-01-30 JP JP1279085U patent/JPS61129369U/ja active Pending