JPS63138700U - - Google Patents

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Publication number
JPS63138700U
JPS63138700U JP3141887U JP3141887U JPS63138700U JP S63138700 U JPS63138700 U JP S63138700U JP 3141887 U JP3141887 U JP 3141887U JP 3141887 U JP3141887 U JP 3141887U JP S63138700 U JPS63138700 U JP S63138700U
Authority
JP
Japan
Prior art keywords
power supply
circuit
backup
voltage
switching element
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
JP3141887U
Other languages
English (en)
Other versions
JPH0531759Y2 (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 JP3141887U priority Critical patent/JPH0531759Y2/ja
Publication of JPS63138700U publication Critical patent/JPS63138700U/ja
Application granted granted Critical
Publication of JPH0531759Y2 publication Critical patent/JPH0531759Y2/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図は本考案に係る電源のバツクアツプ回路
を示す回路図、第２図は従来の電源のバツクアツ
プ回路を示す回路図である。 １０……増幅器、２０……ＯＲ回路、ＴＲ……
スイツチングトランジスタ、Ｅ１０……基準電源
、ＶＢ……バツクアツプ用電源。

Claims (1)

  1. 【実用新案登録請求の範囲】 バツクアツプ用電源と基準電源の夫々の電圧が
    論理和回路に入力されており、基準電源の電圧が
    消滅した場合に前記バツクアツプ用電源の電圧が
    論理和回路から出力されるよう構成しているメモ
    リ用電源のバツクアツプ回路において、 前記バツクアツプ用電源と前記論理和回路の入
    力端子との間にスイツチング素子を設け、論理和
    回路の出力レベルの変化により前記スイツチング
    素子を駆動する構成としていることを特徴とする
    メモリ用電源のバツクアツプ回路。
JP3141887U 1987-03-03 1987-03-03 Expired - Lifetime JPH0531759Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3141887U JPH0531759Y2 (ja) 1987-03-03 1987-03-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3141887U JPH0531759Y2 (ja) 1987-03-03 1987-03-03

Publications (2)

Publication Number Publication Date
JPS63138700U true JPS63138700U (ja) 1988-09-13
JPH0531759Y2 JPH0531759Y2 (ja) 1993-08-16

Family

ID=30837130

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3141887U Expired - Lifetime JPH0531759Y2 (ja) 1987-03-03 1987-03-03

Country Status (1)

Country Link
JP (1) JPH0531759Y2 (ja)

Also Published As

Publication number Publication date
JPH0531759Y2 (ja) 1993-08-16

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