JP2010223796A5 - - Google Patents

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Publication number
JP2010223796A5
JP2010223796A5 JP2009072036A JP2009072036A JP2010223796A5 JP 2010223796 A5 JP2010223796 A5 JP 2010223796A5 JP 2009072036 A JP2009072036 A JP 2009072036A JP 2009072036 A JP2009072036 A JP 2009072036A JP 2010223796 A5 JP2010223796 A5 JP 2010223796A5
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JP
Japan
Prior art keywords
power supply
supply voltage
transistor
voltage
reference signal
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
JP2009072036A
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English (en)
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JP5148537B2 (ja
JP2010223796A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2009072036A priority Critical patent/JP5148537B2/ja
Priority claimed from JP2009072036A external-priority patent/JP5148537B2/ja
Priority to US12/729,824 priority patent/US8373405B2/en
Publication of JP2010223796A publication Critical patent/JP2010223796A/ja
Publication of JP2010223796A5 publication Critical patent/JP2010223796A5/ja
Application granted granted Critical
Publication of JP5148537B2 publication Critical patent/JP5148537B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Claims (1)

  1. 電源電圧に基づいて基準信号を生成する基準信号生成回路と、
    前記基準信号に基づいて第１及び第２の端子間を流れる電流が制御される第１のトランジスタと、
    前記電源電圧と前記第１のトランジスタの第１の端子との間に直列に接続され、前記電源電圧に応じた制御電圧を生成し、出力する電圧生成回路と、
    前記制御電圧に基づいて、前記電源電圧を出力するか否かを制御する第２のトランジスタと、を備えた電源電圧検出回路。
JP2009072036A 2009-03-24 2009-03-24 電源電圧検出回路 Expired - Fee Related JP5148537B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009072036A JP5148537B2 (ja) 2009-03-24 2009-03-24 電源電圧検出回路
US12/729,824 US8373405B2 (en) 2009-03-24 2010-03-23 Power supply voltage detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009072036A JP5148537B2 (ja) 2009-03-24 2009-03-24 電源電圧検出回路

Publications (3)

Publication Number Publication Date
JP2010223796A JP2010223796A (ja) 2010-10-07
JP2010223796A5 true JP2010223796A5 (ja) 2012-04-05
JP5148537B2 JP5148537B2 (ja) 2013-02-20

Family

ID=42783330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009072036A Expired - Fee Related JP5148537B2 (ja) 2009-03-24 2009-03-24 電源電圧検出回路

Country Status (2)

Country Link
US (1) US8373405B2 (ja)
JP (1) JP5148537B2 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101937016A (zh) * 2009-06-29 2011-01-05 鸿富锦精密工业（深圳）有限公司 低电压提示装置
JP5617506B2 (ja) 2010-10-01 2014-11-05 日産自動車株式会社 充電ポート用カバー
WO2012176248A1 (ja) * 2011-06-20 2012-12-27 パナソニック株式会社 電源電圧検出回路
JP5800192B2 (ja) * 2011-10-11 2015-10-28 富士電機株式会社 フォトカプラの出力信号受信回路
JP5143943B1 (ja) * 2011-11-04 2013-02-13 シャープ株式会社 電力増幅回路
JP5971604B2 (ja) * 2012-02-28 2016-08-17 パナソニックＩｐマネジメント株式会社 電圧検出回路
JP5889700B2 (ja) * 2012-04-05 2016-03-22 ルネサスエレクトロニクス株式会社 パワーオン・リセット回路及び半導体装置
US20130271102A1 (en) * 2012-04-12 2013-10-17 Roger Lin Power supply control structure
CN204915554U (zh) * 2015-09-18 2015-12-30 泰科电子(上海)有限公司 感应电路、混合驱动电路及感应器组件
JP7131965B2 (ja) * 2018-05-25 2022-09-06 エイブリック株式会社 ボルテージディテクタ
CN114152897A (zh) * 2020-09-08 2022-03-08 瑞昱半导体股份有限公司 断电检测装置与方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4970620A (en) * 1989-08-23 1990-11-13 General Motors Corporation FET bridge protection circuit
JP3126565B2 (ja) * 1993-11-01 2001-01-22 株式会社東芝 Ａｃ／ｄｃ変換器
JP2005278056A (ja) * 2004-03-26 2005-10-06 Matsushita Electric Ind Co Ltd 電源電圧低下検出回路
JP4439974B2 (ja) * 2004-03-31 2010-03-24 Ｎｅｃエレクトロニクス株式会社 電源電圧監視回路
JP4908889B2 (ja) 2006-03-24 2012-04-04 新電元工業株式会社 低電圧検出回路

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