JPH01127333U - - Google Patents

Info

Publication number
JPH01127333U
JPH01127333U JP2301388U JP2301388U JPH01127333U JP H01127333 U JPH01127333 U JP H01127333U JP 2301388 U JP2301388 U JP 2301388U JP 2301388 U JP2301388 U JP 2301388U JP H01127333 U JPH01127333 U JP H01127333U
Authority
JP
Japan
Prior art keywords
constant current
control transistor
circuit
power supply
drive circuit
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
JP2301388U
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 JP2301388U priority Critical patent/JPH01127333U/ja
Publication of JPH01127333U publication Critical patent/JPH01127333U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Measurement Of Current Or Voltage (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例に係る過電圧保護回路
の構成を示す回路図である。 １０：制御用トランジスタ回路、１１：制御用
トランジスタ、１２，１３：抵抗、１４：トラン
ジスタ、１５，１６：ダイオード、２０：電圧検
出回路、２１：ツエナーダイオード。

Claims (1)

    【実用新案登録請求の範囲】
  1. 電源ラインに直列に挿入した制御用トランジス
    タおよびこの制御用トランジスタを定電流駆動す
    る定電流駆動回路からなる制御用トランジスタ回
    路と、電源からの過電圧を検出して上記定電流駆
    動回路の定電流値を変化させる電圧検出回路とを
    具備したことを特徴とする過電圧保護回路。
JP2301388U 1988-02-25 1988-02-25 Pending JPH01127333U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2301388U JPH01127333U (ja) 1988-02-25 1988-02-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2301388U JPH01127333U (ja) 1988-02-25 1988-02-25

Publications (1)

Publication Number Publication Date
JPH01127333U true JPH01127333U (ja) 1989-08-31

Family

ID=31241647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2301388U Pending JPH01127333U (ja) 1988-02-25 1988-02-25

Country Status (1)

Country Link
JP (1) JPH01127333U (ja)

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