JPH02138322U - - Google Patents

Info

Publication number
JPH02138322U
JPH02138322U JP4674489U JP4674489U JPH02138322U JP H02138322 U JPH02138322 U JP H02138322U JP 4674489 U JP4674489 U JP 4674489U JP 4674489 U JP4674489 U JP 4674489U JP H02138322 U JPH02138322 U JP H02138322U
Authority
JP
Japan
Prior art keywords
power supply
external device
power source
voltage drop
emergency 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.)
Pending
Application number
JP4674489U
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 JP4674489U priority Critical patent/JPH02138322U/ja
Publication of JPH02138322U publication Critical patent/JPH02138322U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Power Sources (AREA)

Description

【図面の簡単な説明】
第1図は本考案の機能ブロツク図、第2図は一
実施例の無停電電源供給装置の回路ブロツク図、
第3図は一実施例の動作を説明するタイムチヤー
ト、第4図は第2図に示す無停電電源供給装置の
変形回路を示すブロツク図、第5図は従来の無停
電電源供給装置の回路ブロツク図、第6図は従来
の無停電電源供給装置の動作を説明するタイムチ
ヤートである。 1……電圧降下検出手段、2……非常用電源、
3……切換手段、4……切換制御手段。

Claims (1)

    【実用新案登録請求の範囲】
  1. 商用電源の電圧降下を検出する電圧降下検出手
    段と、非常用電源と、前記商用電源と非常用電源
    が入力し両電源のうち一方を外部機器へ出力する
    切換手段と、前記電圧降下検出手段が商用電源の
    所定レベル以下の電圧降下を検出した時前記外部
    機器への出力電源を前記商用電源から非常用電源
    に切換えることを前記切換手段に指示し、前記外
    部機器が前記非常用電源の供給中一定の処理を終
    了した時前記外部機器への前記非常用電源の解除
    を前記切換手段に指示する切換制御手段とを有す
    る無停電電源供給装置。
JP4674489U 1989-04-20 1989-04-20 Pending JPH02138322U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4674489U JPH02138322U (ja) 1989-04-20 1989-04-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4674489U JPH02138322U (ja) 1989-04-20 1989-04-20

Publications (1)

Publication Number Publication Date
JPH02138322U true JPH02138322U (ja) 1990-11-19

Family

ID=31562084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4674489U Pending JPH02138322U (ja) 1989-04-20 1989-04-20

Country Status (1)

Country Link
JP (1) JPH02138322U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09327134A (ja) * 1996-06-06 1997-12-16 Hitachi Ltd 無停電電源装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09327134A (ja) * 1996-06-06 1997-12-16 Hitachi Ltd 無停電電源装置

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