JPS6127262U - Laser diode drive circuit - Google Patents
Laser diode drive circuitInfo
- Publication number
- JPS6127262U JPS6127262U JP10924284U JP10924284U JPS6127262U JP S6127262 U JPS6127262 U JP S6127262U JP 10924284 U JP10924284 U JP 10924284U JP 10924284 U JP10924284 U JP 10924284U JP S6127262 U JPS6127262 U JP S6127262U
- Authority
- JP
- Japan
- Prior art keywords
- laser diode
- drive circuit
- diode drive
- darlington
- stages
- 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
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図は従来の回路を示す回路図、第２図は第１図の回
路の利得周波数特性を示す特注図、第３図はこの考案の
一実施例を示す回路図、第４図は第３図の回路の利得周
波数特性を示す特性図である。
１・・・レーザダイオード、２・・・受光素子、４，５
・・・ターリントン接続された２段のトランジスタ、９
・・・変調信号入力端子、１６．１７・・・位相補償回
路。
尚、各図中同一符号は同一又は相当部分を示す。Fig. 1 is a circuit diagram showing a conventional circuit, Fig. 2 is a custom-made drawing showing the gain frequency characteristics of the circuit in Fig. 1, Fig. 3 is a circuit diagram showing an embodiment of this invention, and Fig. 4 is a circuit diagram showing the gain frequency characteristics of the circuit in Fig. 1. FIG. 4 is a characteristic diagram showing the gain frequency characteristics of the circuit in FIG. 3; 1... Laser diode, 2... Light receiving element, 4, 5
...Turlington connected two-stage transistor, 9
...Modulation signal input terminal, 16.17...Phase compensation circuit. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (1)
トランジスタ出力電流によりレーザタイオードを駆動す
るレーサダイオード駆動回路において、 上記ターリントン接続された複数段のトランジスタの初
段のトランジスタの信号入力点に信号電圧を入力する手
段、 上記レーザタイオードの発光出力の一部が入射され入射
された光の強さによって定まる電圧を出力する受光素子
、 この受光素子の出力電圧が入力され、この入力に対し位
相補償を施して上記信号入力点に負帰還信号として入力
する位相補償回路を備えたことを特徴とするレーザダイ
オード駆動回路。[Claims for Utility Model Registration] In a laser diode drive circuit that drives a laser diode by the output current of the final stage transistor of a plurality of stages of Darlington-connected transistors, the transistor in the first stage of the plurality of stages of transistors that are connected to a Darlington. means for inputting a signal voltage to a signal input point of the laser diode; a light receiving element that receives a portion of the light emitted output of the laser diode and outputs a voltage determined by the intensity of the incident light; A laser diode drive circuit comprising: a phase compensation circuit that performs phase compensation on this input and inputs it as a negative feedback signal to the signal input point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10924284U JPS6127262U (en) | 1984-07-19 | 1984-07-19 | Laser diode drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10924284U JPS6127262U (en) | 1984-07-19 | 1984-07-19 | Laser diode drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6127262U true JPS6127262U (en) | 1986-02-18 |
Family
ID=30668401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10924284U Pending JPS6127262U (en) | 1984-07-19 | 1984-07-19 | Laser diode drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6127262U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6397088A (en) * | 1986-10-13 | 1988-04-27 | Meisei Electric Co Ltd | Speaking device |
| JPH0377581U (en) * | 1989-11-30 | 1991-08-05 |
-
1984
- 1984-07-19 JP JP10924284U patent/JPS6127262U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6397088A (en) * | 1986-10-13 | 1988-04-27 | Meisei Electric Co Ltd | Speaking device |
| JPH0377581U (en) * | 1989-11-30 | 1991-08-05 |
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