JPS6374723U - - Google Patents

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Publication number
JPS6374723U
JPS6374723U JP16934386U JP16934386U JPS6374723U JP S6374723 U JPS6374723 U JP S6374723U JP 16934386 U JP16934386 U JP 16934386U JP 16934386 U JP16934386 U JP 16934386U JP S6374723 U JPS6374723 U JP S6374723U
Authority
JP
Japan
Prior art keywords
laser diode
transistor
laser
diode
driving current
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
JP16934386U
Other languages
English (en)
Other versions
JP2501405Y2 (ja
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 JP1986169343U priority Critical patent/JP2501405Y2/ja
Publication of JPS6374723U publication Critical patent/JPS6374723U/ja
Application granted granted Critical
Publication of JP2501405Y2 publication Critical patent/JP2501405Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】
第１図はこの考案の光デイスク再生装置のレー
ザ駆動回路の実施例を示す回路図、第２図は従来
の光デイスク再生装置のレーザー駆動回路を示す
回路図である。 ２……レーザーダイオード、４……駆動トラン
ジスタ、１０……増幅器、１２……ＤＣ―ＤＣコ
ンバータ。

Claims (1)

  1. 【実用新案登録請求の範囲】 レーザーダイオードにトランジスタから駆動電
    流を流し、レーザーダイオードが発生したレーザ
    ー光を受光ダイオードで受け、その受光出力を前
    記トランジスタのベースに増幅器を通して帰還し
    てレーザーダイオードの駆動電流を制御する光デ
    イスク再生装置のレーザー駆動回路において、 電源電圧を直流―直流変換手段を通して得た適
    正な駆動電圧を前記トランジスタに加えて、レー
    ザーダイオードに駆動電流を流す光デイスク再生
    装置のレーザー駆動回路。
JP1986169343U 1986-11-04 1986-11-04 光デイスク再生装置のレ−ザ−駆動回路 Expired - Lifetime JP2501405Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986169343U JP2501405Y2 (ja) 1986-11-04 1986-11-04 光デイスク再生装置のレ−ザ−駆動回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986169343U JP2501405Y2 (ja) 1986-11-04 1986-11-04 光デイスク再生装置のレ−ザ−駆動回路

Publications (2)

Publication Number Publication Date
JPS6374723U true JPS6374723U (ja) 1988-05-18
JP2501405Y2 JP2501405Y2 (ja) 1996-06-19

Family

ID=31103064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986169343U Expired - Lifetime JP2501405Y2 (ja) 1986-11-04 1986-11-04 光デイスク再生装置のレ−ザ−駆動回路

Country Status (1)

Country Link
JP (1) JP2501405Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63121141A (ja) * 1986-11-07 1988-05-25 Rohm Co Ltd 光デイスク再生装置のレ−ザ−駆動回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736366A (en) * 1980-08-12 1982-02-27 Sharp Corp Optical signal output circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736366A (en) * 1980-08-12 1982-02-27 Sharp Corp Optical signal output circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63121141A (ja) * 1986-11-07 1988-05-25 Rohm Co Ltd 光デイスク再生装置のレ−ザ−駆動回路

Also Published As

Publication number Publication date
JP2501405Y2 (ja) 1996-06-19

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