JPH0193754U - - Google Patents

Info

Publication number
JPH0193754U
JPH0193754U JP18984187U JP18984187U JPH0193754U JP H0193754 U JPH0193754 U JP H0193754U JP 18984187 U JP18984187 U JP 18984187U JP 18984187 U JP18984187 U JP 18984187U JP H0193754 U JPH0193754 U JP H0193754U
Authority
JP
Japan
Prior art keywords
led
temperature
fet
controlling
error amplifier
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
JP18984187U
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 JP18984187U priority Critical patent/JPH0193754U/ja
Publication of JPH0193754U publication Critical patent/JPH0193754U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は本考案によるLED発光パワーの温度
補償回路の一実施例を示す回路図である。 A1……主増幅器、A2……誤差増幅器、Io
……温度・電流変換素子。

Claims (1)

    【実用新案登録請求の範囲】
  1. LED駆動回路中に組み込まれる温度補償回路
    であつて、LEDと熱的に結合される温度・電気
    変換素子と、前記温度・電気変換素子を通過する
    電気信号と参照電圧とを比較する誤差増幅器と、
    LED駆動回路の順方向電流決定素子としてのF
    ETとからなり、前記FETのゲート電圧を誤差
    増幅器の出力で制御することによりLEDの順方
    向電流を制御することを特徴とするLED発光パ
    ワーの温度補償回路。
JP18984187U 1987-12-14 1987-12-14 Pending JPH0193754U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18984187U JPH0193754U (ja) 1987-12-14 1987-12-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18984187U JPH0193754U (ja) 1987-12-14 1987-12-14

Publications (1)

Publication Number Publication Date
JPH0193754U true JPH0193754U (ja) 1989-06-20

Family

ID=31480850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18984187U Pending JPH0193754U (ja) 1987-12-14 1987-12-14

Country Status (1)

Country Link
JP (1) JPH0193754U (ja)

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