JPS6152439U - - Google Patents

Info

Publication number
JPS6152439U
JPS6152439U JP13717684U JP13717684U JPS6152439U JP S6152439 U JPS6152439 U JP S6152439U JP 13717684 U JP13717684 U JP 13717684U JP 13717684 U JP13717684 U JP 13717684U JP S6152439 U JPS6152439 U JP S6152439U
Authority
JP
Japan
Prior art keywords
power supply
backup
circuit
output voltage
main power
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
JP13717684U
Other languages
English (en)
Other versions
JPH069553Y2 (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 JP1984137176U priority Critical patent/JPH069553Y2/ja
Publication of JPS6152439U publication Critical patent/JPS6152439U/ja
Application granted granted Critical
Publication of JPH069553Y2 publication Critical patent/JPH069553Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Power Sources (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の一実施例による電源回路の
回路構成図、第2図はこの考案の一実施例の動作
を説明するための電圧波形図、第3図は従来の電
源回路を示す回路構成図、第4図は従来のものの
動作を説明するための電圧波形図である。 2…ロジツク電源、3…イグニツシヨンスイツ
チ、4…バツクアツプ電源、5…電源切換回路、
7…バツテリ、10…切換電圧検出回路、11…
CPU、12…周辺回路。なお、図中、同一符号
は同一、または相当部分を示す。

Claims (1)

    【実用新案登録請求の範囲】
  1. 主電源2の非作動時にバツクアツプを必要とす
    る回路11を含む電子回路の電源回路において、
    常時バツクアツプ電圧を発生し該バツクアツプ電
    圧を前記主電源2の非作動時に前記バツクアツプ
    を必要とする回路11に供給するバツクアツプ電
    源4と、前記主電源2の出力電圧と前記バツクア
    ツプ電源4の出力電圧とを比較し前者が後者を上
    まわつたか否かを検出する切換電圧検出回路10
    と、該切換電圧検出回路10により前記主電源2
    の出力電圧が前記バツクアツプ電源4の出力電圧
    を上まわつたときに切換制御され、前記バツクア
    ツプを必要とする回路11に対して前記バツクア
    ツプ電源4の出力電圧に代えて前記主電源2の出
    力電圧を供給する電源切換回路5とを備えたこと
    を特徴とする電源回路。
JP1984137176U 1984-09-12 1984-09-12 電源回路 Expired - Lifetime JPH069553Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984137176U JPH069553Y2 (ja) 1984-09-12 1984-09-12 電源回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984137176U JPH069553Y2 (ja) 1984-09-12 1984-09-12 電源回路

Publications (2)

Publication Number Publication Date
JPS6152439U true JPS6152439U (ja) 1986-04-09
JPH069553Y2 JPH069553Y2 (ja) 1994-03-09

Family

ID=30695590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984137176U Expired - Lifetime JPH069553Y2 (ja) 1984-09-12 1984-09-12 電源回路

Country Status (1)

Country Link
JP (1) JPH069553Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002118685A (ja) * 2000-08-04 2002-04-19 Matsushita Electric Ind Co Ltd 緊急通報システム端末機器および緊急通報システム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535882U (ja) * 1978-08-31 1980-03-07
JPS57211946A (en) * 1981-06-23 1982-12-25 Mitsubishi Electric Corp Backup power source for vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535882U (ja) * 1978-08-31 1980-03-07
JPS57211946A (en) * 1981-06-23 1982-12-25 Mitsubishi Electric Corp Backup power source for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002118685A (ja) * 2000-08-04 2002-04-19 Matsushita Electric Ind Co Ltd 緊急通報システム端末機器および緊急通報システム

Also Published As

Publication number Publication date
JPH069553Y2 (ja) 1994-03-09

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