JPS649425U - - Google Patents

Info

Publication number
JPS649425U
JPS649425U JP10300487U JP10300487U JPS649425U JP S649425 U JPS649425 U JP S649425U JP 10300487 U JP10300487 U JP 10300487U JP 10300487 U JP10300487 U JP 10300487U JP S649425 U JPS649425 U JP S649425U
Authority
JP
Japan
Prior art keywords
polarity
electrical equipment
power supply
determining
determining means
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
JP10300487U
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 JP10300487U priority Critical patent/JPS649425U/ja
Publication of JPS649425U publication Critical patent/JPS649425U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は、本考案の一実施例を示す回路図であ
る。 1……電力供給回路、2……ACアダプタ、3
……電気機器、13……リレー、131……リレ
ーコイル、132……リレー接点ra、133…
…リレー接点rb、14……ダイオード、15,
16……入力端子、17,18……出力端子。

Claims (1)

    【実用新案登録請求の範囲】
  1. 直流電源から電気機器へ電力を供給する電力供
    給回路において、入力電圧の極性を判別する極性
    判別手段と、この極性判別手段の判別結果によつ
    て前記電気機器が正常に動作する様に出力電圧極
    性を自動的に切換える極性切換手段とを有して前
    記電気機器を保護することを特徴とする電力供給
    回路。
JP10300487U 1987-07-03 1987-07-03 Pending JPS649425U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10300487U JPS649425U (ja) 1987-07-03 1987-07-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10300487U JPS649425U (ja) 1987-07-03 1987-07-03

Publications (1)

Publication Number Publication Date
JPS649425U true JPS649425U (ja) 1989-01-19

Family

ID=31333430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10300487U Pending JPS649425U (ja) 1987-07-03 1987-07-03

Country Status (1)

Country Link
JP (1) JPS649425U (ja)

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