JPS58187888U - Light output control circuit for a diode with light emitting function - Google Patents

Light output control circuit for a diode with light emitting function

Info

Publication number
JPS58187888U
JPS58187888U JP8446082U JP8446082U JPS58187888U JP S58187888 U JPS58187888 U JP S58187888U JP 8446082 U JP8446082 U JP 8446082U JP 8446082 U JP8446082 U JP 8446082U JP S58187888 U JPS58187888 U JP S58187888U
Authority
JP
Japan
Prior art keywords
diode
light
control circuit
output control
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
Application number
JP8446082U
Other languages
Japanese (ja)
Other versions
JPH0121431Y2 (en
Inventor
菅野　光俊
恵 田中
Original Assignee
パイオニア株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP8446082U priority Critical patent/JPS58187888U/en
Publication of JPS58187888U publication Critical patent/JPS58187888U/en
Application granted granted Critical
Publication of JPH0121431Y2 publication Critical patent/JPH0121431Y2/ja
Granted legal-status Critical Current

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は現在提案中のレーザダイオード光側御回路の例
を示す図、第２図は本考案の実施例の回路図、第３図は
第２図の回路の動作を説明する波。 形図である。 主要部分の符号の説明、１・・・レーザダイオード、２
・・・駆動トランジスタ、４・・・フォトダイオード、
６・・・差動アンプ、１０・・・コンデンサ、１６・・
・スイッチングトランジスタ。FIG. 1 is a diagram showing an example of a laser diode optical side control circuit currently being proposed, FIG. 2 is a circuit diagram of an embodiment of the present invention, and FIG. 3 is a diagram illustrating the operation of the circuit of FIG. 2. It is a shape diagram. Explanation of symbols of main parts, 1... Laser diode, 2
... Drive transistor, 4... Photodiode,
6... Differential amplifier, 10... Capacitor, 16...
・Switching transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 発光機能を有するダイオードの光出力に応じた信号のレ
ベルと基準レベルとを比較しこの比較出力によって前記
ダイオードを駆動制御するようにした光出力制御回路で
あって、外部制御信号に応答して前記基準レベルを初期
値から目標値へ向けて徐々に変化させる可変手段を有し
、前記基準レベルの変化期間において前記可変手段に応
答して前記ダイオードを漸次発光させるようにしたこと
を特徴とする光出力制御回路。A light output control circuit that compares the level of a signal corresponding to the light output of a diode having a light emitting function with a reference level and drives and controls the diode based on the comparison output, the circuit controlling the drive of the diode in response to an external control signal. A light comprising a variable means for gradually changing a reference level from an initial value toward a target value, and the diode is configured to gradually cause the diode to emit light in response to the variable means during a period of change of the reference level. Output control circuit.
JP8446082U 1982-06-07 1982-06-07 Light output control circuit for a diode with light emitting function Granted JPS58187888U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8446082U JPS58187888U (en) 1982-06-07 1982-06-07 Light output control circuit for a diode with light emitting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8446082U JPS58187888U (en) 1982-06-07 1982-06-07 Light output control circuit for a diode with light emitting function

Publications (2)

Publication Number Publication Date
JPS58187888U true JPS58187888U (en) 1983-12-13
JPH0121431Y2 JPH0121431Y2 (en) 1989-06-26

Family

ID=30093407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8446082U Granted JPS58187888U (en) 1982-06-07 1982-06-07 Light output control circuit for a diode with light emitting function

Country Status (1)

Country Link
JP (1) JPS58187888U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138130A (en) * 1975-05-09 1976-11-29 Philips Nv Character display circuit
JPS5362284U (en) * 1976-10-27 1978-05-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51138130A (en) * 1975-05-09 1976-11-29 Philips Nv Character display circuit
JPS5362284U (en) * 1976-10-27 1978-05-26

Also Published As

Publication number Publication date
JPH0121431Y2 (en) 1989-06-26

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