JPS6351475U - - Google Patents

Info

Publication number
JPS6351475U
JPS6351475U JP14524286U JP14524286U JPS6351475U JP S6351475 U JPS6351475 U JP S6351475U JP 14524286 U JP14524286 U JP 14524286U JP 14524286 U JP14524286 U JP 14524286U JP S6351475 U JPS6351475 U JP S6351475U
Authority
JP
Japan
Prior art keywords
overcurrent detection
semiconductor laser
excessive current
detection means
response
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
Application number
JP14524286U
Other languages
English (en)
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 filed Critical
Priority to JP14524286U priority Critical patent/JPS6351475U/ja
Publication of JPS6351475U publication Critical patent/JPS6351475U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図はこの考案の一実施例の概略ブロツク図
である。第２図はこの考案の一実施例の具体的な
電気回路図である。第３図はこの考案の他の実施
例の電気回路図である。第４図はこの考案のその
他の実施例の概略ブロツク図である。 図において、１は電源、２は過大電流検出部、
３は電源制御部、４は半導体レーザおよび周辺回
路、５は報知部、２１はコンパレータ、２２ない
し２６は抵抗、３１，３６，３７，４２，４３は
トランジスタ、３２はリレーコイル、３３，３４
，３５は接点、３８はマイクロコンピユータ、４
１は発光ダイオード、４４はブザーを示す。

Claims (1)

  1. 【実用新案登録請求の範囲】 半導体レーザに流れる過大電流を検知する過大
    電流検知手段と、 前記過大電流検知手段が過大電流を検知したこ
    とに応じて、前記半導体レーザに供給している電
    源を遮断する電源遮断手段と、 前記過大電流検知手段が過大電流を検知したこ
    とに応じて、警報を報知する報知手段とを備えた
    、半導体レーザの保護回路。
JP14524286U 1986-09-22 1986-09-22 Pending JPS6351475U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14524286U JPS6351475U (ja) 1986-09-22 1986-09-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14524286U JPS6351475U (ja) 1986-09-22 1986-09-22

Publications (1)

Publication Number Publication Date
JPS6351475U true JPS6351475U (ja) 1988-04-07

Family

ID=31056600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14524286U Pending JPS6351475U (ja) 1986-09-22 1986-09-22

Country Status (1)

Country Link
JP (1) JPS6351475U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02119193A (ja) * 1988-10-28 1990-05-07 Toshiba Corp レーザ駆動回路
JPH06338646A (ja) * 1993-05-28 1994-12-06 Nec Corp レーザダイオード駆動回路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5710991A (en) * 1980-06-24 1982-01-20 Fujitsu Ltd Laser diode control circuit
JPS58206181A (ja) * 1982-05-26 1983-12-01 Hitachi Ltd レ−ザ−ダイオ−ドの保護回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5710991A (en) * 1980-06-24 1982-01-20 Fujitsu Ltd Laser diode control circuit
JPS58206181A (ja) * 1982-05-26 1983-12-01 Hitachi Ltd レ−ザ−ダイオ−ドの保護回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02119193A (ja) * 1988-10-28 1990-05-07 Toshiba Corp レーザ駆動回路
JPH06338646A (ja) * 1993-05-28 1994-12-06 Nec Corp レーザダイオード駆動回路

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