JPS58184858U - Light output control circuit for a diode with light emitting function - Google Patents
Light output control circuit for a diode with light emitting functionInfo
- Publication number
- JPS58184858U JPS58184858U JP1982082862U JP8286282U JPS58184858U JP S58184858 U JPS58184858 U JP S58184858U JP 1982082862 U JP1982082862 U JP 1982082862U JP 8286282 U JP8286282 U JP 8286282U JP S58184858 U JPS58184858 U JP S58184858U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- circuit
- light output
- control circuit
- emitting function
- 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
Landscapes
- Optical Head (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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はレーザダイオードの光出力制御回路の例を示す
図、第２図乃至第４図は本考案の各実施例の回路図であ
る。
主要部分の符号の説明、Ｄ工・・・・・・レーザダイオ
ード、Ｄ２・・・・・・フォトダイオード、Ｑ工・・・
・・・駆動トランジスタ、Ｑ２・・・・・・定電圧源ト
ランジスタ、Ｑ３〜Ｑ５・・・・・・制御トランジスタ
。FIG. 1 is a diagram showing an example of a light output control circuit for a laser diode, and FIGS. 2 to 4 are circuit diagrams of each embodiment of the present invention. Explanation of the symbols of the main parts, D section... Laser diode, D2... Photo diode, Q section...
... Drive transistor, Q2 ... Constant voltage source transistor, Q3 to Q5 ... Control transistor.
Claims (3)
制御する制御手段と、他回路の動作電源電圧を受けて前
記制御手段の動作電圧を発生する電圧源とを有するダイ
オード光出力ｆｆｉ制御回路であって、外部制御信号に
応答して前記他回路の動作電源電圧を断とすることなく
前記ダイオードの発光をオフとする回路を備えてなるこ
とを特徴とする光出力制御回路。(1) A diode light output ffi control circuit having a control means for controlling the light output of a diode having a light emitting function to be substantially constant, and a voltage source for generating an operating voltage for the control means in response to an operating power supply voltage of another circuit. A light output control circuit comprising: a circuit that turns off light emission from the diode without cutting off the operating power supply voltage of the other circuit in response to an external control signal.
子を有し、この駆動素子を前記制御信号によりオンオフ
制御するようにしたことを特徴とする実用新案登録請求
の範囲第１項記載の回路。(2) The circuit according to claim 1, wherein the control means includes a drive element for driving the diode, and the drive element is turned on and off by the control signal.
フ制御するようにしたことを特ｉとする実用新案登録請
求の範囲第１項記載の回路。(3) The circuit according to claim 1, which is a registered utility model, characterized in that the voltage source is controlled on and off in response to the external control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982082862U JPS58184858U (en) | 1982-06-02 | 1982-06-02 | Light output control circuit for a diode with light emitting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982082862U JPS58184858U (en) | 1982-06-02 | 1982-06-02 | Light output control circuit for a diode with light emitting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58184858U true JPS58184858U (en) | 1983-12-08 |
| JPH0423337Y2 JPH0423337Y2 (en) | 1992-05-29 |
Family
ID=30091896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982082862U Granted JPS58184858U (en) | 1982-06-02 | 1982-06-02 | Light output control circuit for a diode with light emitting function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58184858U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115872U (en) * | 1975-03-17 | 1976-09-20 |
-
1982
- 1982-06-02 JP JP1982082862U patent/JPS58184858U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115872U (en) * | 1975-03-17 | 1976-09-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0423337Y2 (en) | 1992-05-29 |
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