JPH0478572U - - Google Patents

Info

Publication number
JPH0478572U
JPH0478572U JP12050990U JP12050990U JPH0478572U JP H0478572 U JPH0478572 U JP H0478572U JP 12050990 U JP12050990 U JP 12050990U JP 12050990 U JP12050990 U JP 12050990U JP H0478572 U JPH0478572 U JP H0478572U
Authority
JP
Japan
Prior art keywords
voltage waveform
reference signal
waveform
circuit
power source
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
JP12050990U
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 JP12050990U priority Critical patent/JPH0478572U/ja
Publication of JPH0478572U publication Critical patent/JPH0478572U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)

Description

【図面の簡単な説明】
第1図及び第2図はそれぞれ本考案の第1の実
施例のブロツク図及びこの実施例の動作を説明す
るための各部信号の波形図、第3図は本考案の第
2の実施例のブロツク図、第4図及び第5図はそ
れぞれ従来の停電検出回路の第1の例のブロツク
図及びこの例の動作を説明するための各部信号の
波形図、第6図及び第7図はそれぞれ従来の停電
検出回路の第2の例のブロツク図及びこの例の動
作を説明するための各部信号の波形図である。 1……同期回路、2……信号発生回路、3……
波形比較回路、4……同時発振回路、5……整流
回路、6……平滑回路、7……基準電圧源、8…
…電圧比較回路、9……トリガ回路、10……タ
イマ回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 入力される交流電源の電圧波形と位相が同相で
    振幅がこの電圧波形の定常時のレベルと等しい交
    流の基準信号を連続して発生する基準信号発生手
    段と、前記交流電源の電圧波形と前記基準信号の
    電圧波形とを比較し一致しているか否かを示す検
    出信号を出力する波形比較回路とを有することを
    特徴とする停電検出回路。
JP12050990U 1990-11-16 1990-11-16 Pending JPH0478572U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12050990U JPH0478572U (ja) 1990-11-16 1990-11-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12050990U JPH0478572U (ja) 1990-11-16 1990-11-16

Publications (1)

Publication Number Publication Date
JPH0478572U true JPH0478572U (ja) 1992-07-08

Family

ID=31868411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12050990U Pending JPH0478572U (ja) 1990-11-16 1990-11-16

Country Status (1)

Country Link
JP (1) JPH0478572U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09297156A (ja) * 1996-05-07 1997-11-18 Shindengen Electric Mfg Co Ltd 商用電源の瞬時停電検出回路
JP2017032452A (ja) * 2015-08-04 2017-02-09 住友電気工業株式会社 入力電圧の異常検出方法及び電源装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324871A (en) * 1976-08-19 1978-03-08 Siemens Ag Device for monitoring quantity of electricity in aac
JPS5833923A (ja) * 1981-08-19 1983-02-28 日本電気株式会社 交流電圧検出回路
JPH01153969A (ja) * 1987-12-11 1989-06-16 Sanken Electric Co Ltd 繰返し波形の異常検出装置
JPH01221677A (ja) * 1988-02-29 1989-09-05 Mitsubishi Electric Corp 停電検出装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324871A (en) * 1976-08-19 1978-03-08 Siemens Ag Device for monitoring quantity of electricity in aac
JPS5833923A (ja) * 1981-08-19 1983-02-28 日本電気株式会社 交流電圧検出回路
JPH01153969A (ja) * 1987-12-11 1989-06-16 Sanken Electric Co Ltd 繰返し波形の異常検出装置
JPH01221677A (ja) * 1988-02-29 1989-09-05 Mitsubishi Electric Corp 停電検出装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09297156A (ja) * 1996-05-07 1997-11-18 Shindengen Electric Mfg Co Ltd 商用電源の瞬時停電検出回路
JP2017032452A (ja) * 2015-08-04 2017-02-09 住友電気工業株式会社 入力電圧の異常検出方法及び電源装置
WO2017022329A1 (ja) * 2015-08-04 2017-02-09 住友電気工業株式会社 入力電圧の異常検出方法及び電源装置
US10481184B2 (en) 2015-08-04 2019-11-19 Sumitomo Electric Industries, Ltd. Input-voltage-abnormality detection method and power source device

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