JPS6185176U - - Google Patents
Info
- Publication number
- JPS6185176U JPS6185176U JP16968984U JP16968984U JPS6185176U JP S6185176 U JPS6185176 U JP S6185176U JP 16968984 U JP16968984 U JP 16968984U JP 16968984 U JP16968984 U JP 16968984U JP S6185176 U JPS6185176 U JP S6185176U
- Authority
- JP
- Japan
- Prior art keywords
- laser diode
- detection means
- temperature detection
- bias current
- explaining
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
Description
第１図はこの考案の構成を説明するためのブロ
ツク図、第２図はこの考案の一実施例を説明する
ための接続図、第３図はこの考案の動作を説明す
るためのグラフ、第４図はこの考案の変形実施例
を説明するための接続図、第５図は従来技術を説
明するための接続図、第６図は従来技術の動作を
説明するためのグラフである。
１：レーザダイオード、３：駆動回路、４：入
力信号、１１：温度検出手段、１２：バイアス電
流制御回路、１３：温度検出手段を構成するダイ
オード、１４：演算増幅器、１５：可変インピー
ダンス素子、１６：共通電位点、１７：ドライバ
。
Figure 1 is a block diagram for explaining the configuration of this invention, Figure 2 is a connection diagram for explaining an embodiment of this invention, Figure 3 is a graph for explaining the operation of this invention, and Figure 3 is a graph for explaining the operation of this invention. FIG. 4 is a connection diagram for explaining a modified embodiment of this invention, FIG. 5 is a connection diagram for explaining the prior art, and FIG. 6 is a graph for explaining the operation of the prior art. 1: Laser diode, 3: Drive circuit, 4: Input signal, 11: Temperature detection means, 12: Bias current control circuit, 13: Diode constituting temperature detection means, 14: Operational amplifier, 15: Variable impedance element, 16 : Common potential point, 17: Driver.
Claims (1)
オフ駆動する駆動回路と、 Ｂ 上記レーザダイオードの温度を検出する温度
検出手段と、 Ｃ この温度検出手段によつて検出したレーザダ
イオードのバイアス電流を制御するバイアス電流
制御回路と、 から成るレーザダイオード駆動装置。[Claims for Utility Model Registration] A. Turn on the laser diode by an input signal,
A laser diode drive comprising: a drive circuit for off-driving; B a temperature detection means for detecting the temperature of the laser diode; and C a bias current control circuit for controlling the bias current of the laser diode detected by the temperature detection means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16968984U JPS6185176U (en) | 1984-11-07 | 1984-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16968984U JPS6185176U (en) | 1984-11-07 | 1984-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6185176U true JPS6185176U (en) | 1986-06-04 |
Family
ID=30727407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16968984U Pending JPS6185176U (en) | 1984-11-07 | 1984-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6185176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010123956A (en) * | 2008-11-20 | 2010-06-03 | Sick Ag | Photoelectric sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144892A (en) * | 1978-05-04 | 1979-11-12 | Mitsubishi Electric Corp | Drive circuit for light emitting semiconductor element |
| JPS56103488A (en) * | 1980-01-22 | 1981-08-18 | Fujitsu Ltd | Driving circuit of semiconductor laser |
-
1984
- 1984-11-07 JP JP16968984U patent/JPS6185176U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144892A (en) * | 1978-05-04 | 1979-11-12 | Mitsubishi Electric Corp | Drive circuit for light emitting semiconductor element |
| JPS56103488A (en) * | 1980-01-22 | 1981-08-18 | Fujitsu Ltd | Driving circuit of semiconductor laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010123956A (en) * | 2008-11-20 | 2010-06-03 | Sick Ag | Photoelectric sensor |
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