JP2008005000A - 低電圧検知リセット回路 - Google Patents
低電圧検知リセット回路 Download PDFInfo
- Publication number
- JP2008005000A JP2008005000A JP2006169832A JP2006169832A JP2008005000A JP 2008005000 A JP2008005000 A JP 2008005000A JP 2006169832 A JP2006169832 A JP 2006169832A JP 2006169832 A JP2006169832 A JP 2006169832A JP 2008005000 A JP2008005000 A JP 2008005000A
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- Prior art keywords
- circuit
- reset
- low
- voltage detection
- detection
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/356—Bistable circuits
- H03K3/356008—Bistable circuits ensuring a predetermined initial state when the supply voltage has been applied; storing the actual state when the supply voltage fails
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
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Abstract
【解決手段】低電圧検知リセット回路は、パワーオン時のみ動作して、リセットパルスを出力するパワーオンリセット回路30を備え、このリセットパルスを用いて検知レベル設定回路13の検知レベルをデフォルト値に設定して、プログラマブル低電圧検知回路10を活性化させるようにした。プログラマブル低電圧検知回路10が活性化された後は、レジスタ15により、プログラマブル低電圧検知回路10の検知レベルをデフォルト値から変更することができる。
【選択図】図1
Description
11 第1の比較回路
12 PMOS
13 検知レベル設定回路
14 基準電圧発生回路
15 レジスタ
16 バスライン
23 NOR回路
30 パワーオンリセット回路
40 パルスストレッチャー回路
Claims (3)
- 電源電圧の立ち上がりに応じて第1のリセットパルスを出力するパワーオンリセット回路と、
電源電圧に応じた検知レベルを可変に設定可能な検知レベル設定回路を備え、電源電圧に依存しない基準電圧と前記検知レベルを比較して、前記検知レベルが前記基準電圧以下になった時に第2のリセットパルスを出力する低電圧検知回路と、
前記第1のリセットパルスに応じて、前記検知レベル設定回路の検知レベルをデフォルト値に設定する制御回路と、を備えることを特徴とする低電圧検知リセット回路。 - 前記制御回路からの制御信号に応じて電源電圧を遮断するスイッチを備えることを特徴とする請求項1に記載の低電圧リセット回路。
- 前記第2のリセットパルスのパルス幅を広げるパルスストレッチャー回路を備えることを特徴とする請求項1又は請求項2に記載の低電圧リセット回路。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006169832A JP5111791B2 (ja) | 2006-06-20 | 2006-06-20 | 低電圧検知リセット回路 |
CN200710126606XA CN101093988B (zh) | 2006-06-20 | 2007-06-18 | 低电压检测复位电路 |
US11/812,510 US7453295B2 (en) | 2006-06-20 | 2007-06-19 | Low-voltage detection reset circuit |
KR1020070059793A KR20070120894A (ko) | 2006-06-20 | 2007-06-19 | 저전압 검지 리세트 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006169832A JP5111791B2 (ja) | 2006-06-20 | 2006-06-20 | 低電圧検知リセット回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008005000A true JP2008005000A (ja) | 2008-01-10 |
JP5111791B2 JP5111791B2 (ja) | 2013-01-09 |
Family
ID=38948659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006169832A Active JP5111791B2 (ja) | 2006-06-20 | 2006-06-20 | 低電圧検知リセット回路 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7453295B2 (ja) |
JP (1) | JP5111791B2 (ja) |
KR (1) | KR20070120894A (ja) |
CN (1) | CN101093988B (ja) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100789727B1 (ko) * | 2007-02-28 | 2008-01-03 | 세메스 주식회사 | 평판 패널 세정 장치 |
KR100791542B1 (ko) * | 2006-10-31 | 2008-01-03 | 한국전력공사 | 중수로 원자력 발전소의 압력관 건전성 평가방법 |
KR100796898B1 (ko) * | 2006-01-31 | 2008-01-22 | 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 | 액정 표시 장치 |
KR100802414B1 (ko) * | 2006-04-18 | 2008-02-13 | 강윤규 | 진동발생장치 |
KR100811085B1 (ko) * | 2007-07-04 | 2008-03-07 | 조영자 | 버튼을 이용한 트렁크 열림 시스템 |
KR100811728B1 (ko) * | 2006-12-12 | 2008-03-11 | 담양군 | 기능성 대나무 판지의 제조방법 |
KR100817992B1 (ko) * | 2006-05-10 | 2008-03-31 | 가시오게산키 가부시키가이샤 | 표시장치 및 그 제조방법 |
KR100832276B1 (ko) * | 2005-03-02 | 2008-05-26 | 닛토덴코 가부시키가이샤 | 광학 필름, 그 제조 방법, 및 광학 필름을 사용하는 화상표시 장치 |
KR100840929B1 (ko) * | 2007-04-20 | 2008-06-24 | 장성원 | 좌변기용 위생시트 보관함 |
US8653864B2 (en) | 2009-09-29 | 2014-02-18 | Semiconductor Components Industries, Llc | Reset circuit |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8316158B1 (en) | 2007-03-12 | 2012-11-20 | Cypress Semiconductor Corporation | Configuration of programmable device using a DMA controller |
TWM366112U (en) * | 2008-12-09 | 2009-10-01 | Richtek Technology Corp | A power management and control apparatus for resetting a latched protection in a power supply unit |
US8493109B2 (en) | 2010-03-31 | 2013-07-23 | Qualcomm Incorporated | System and method to control a power on reset signal |
JP5397309B2 (ja) * | 2010-04-28 | 2014-01-22 | ミツミ電機株式会社 | パワーオンリセット回路 |
JP5584527B2 (ja) * | 2010-06-21 | 2014-09-03 | ルネサスエレクトロニクス株式会社 | 電圧検出システム及びその制御方法 |
JP5852538B2 (ja) * | 2012-09-26 | 2016-02-03 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
CN106982046B (zh) * | 2017-03-22 | 2020-08-04 | 中国电子产品可靠性与环境试验研究所 | 瞬态脉冲宽度展宽电路及方法 |
CN108984330B (zh) * | 2018-05-31 | 2021-05-11 | 深圳市江波龙电子股份有限公司 | 一种控制存储设备的方法、装置及电子设备 |
JP7135497B2 (ja) * | 2018-06-27 | 2022-09-13 | サンケン電気株式会社 | データ処理装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07198762A (ja) * | 1993-12-28 | 1995-08-01 | Fujitsu Ltd | 半導体集積回路装置 |
JPH0897694A (ja) * | 1994-09-26 | 1996-04-12 | Sanyo Electric Co Ltd | リセットパルス発生回路 |
JPH10105255A (ja) * | 1996-09-25 | 1998-04-24 | Toshiba Microelectron Corp | 低電圧検知回路 |
JP2000207381A (ja) * | 1999-01-20 | 2000-07-28 | Mitsubishi Electric Corp | マイクロコンピュ―タのリセット装置 |
JP2000235435A (ja) * | 1998-09-16 | 2000-08-29 | Microchip Technol Inc | プログラム可能電源およびプログラム可能電圧低下検出器を備えた改良されたマイクロプロセッサ電源システム |
JP2004295964A (ja) * | 2003-03-26 | 2004-10-21 | Sanyo Electric Co Ltd | 誤書込み防止回路および該誤書込み防止回路を含む半導体装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5164613A (en) * | 1990-09-28 | 1992-11-17 | Dallas Semiconductor Corporation | Reset monitor |
JP2003032089A (ja) * | 2001-07-18 | 2003-01-31 | Matsushita Electric Ind Co Ltd | リセット機能内蔵マイクロコンピュータ |
US7221200B1 (en) * | 2004-03-24 | 2007-05-22 | Cypress Semiconductor Corp. | Programmable low voltage reset apparatus for multi-Vdd chips |
-
2006
- 2006-06-20 JP JP2006169832A patent/JP5111791B2/ja active Active
-
2007
- 2007-06-18 CN CN200710126606XA patent/CN101093988B/zh not_active Expired - Fee Related
- 2007-06-19 KR KR1020070059793A patent/KR20070120894A/ko not_active Application Discontinuation
- 2007-06-19 US US11/812,510 patent/US7453295B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07198762A (ja) * | 1993-12-28 | 1995-08-01 | Fujitsu Ltd | 半導体集積回路装置 |
JPH0897694A (ja) * | 1994-09-26 | 1996-04-12 | Sanyo Electric Co Ltd | リセットパルス発生回路 |
JPH10105255A (ja) * | 1996-09-25 | 1998-04-24 | Toshiba Microelectron Corp | 低電圧検知回路 |
JP2000235435A (ja) * | 1998-09-16 | 2000-08-29 | Microchip Technol Inc | プログラム可能電源およびプログラム可能電圧低下検出器を備えた改良されたマイクロプロセッサ電源システム |
JP2000207381A (ja) * | 1999-01-20 | 2000-07-28 | Mitsubishi Electric Corp | マイクロコンピュ―タのリセット装置 |
JP2004295964A (ja) * | 2003-03-26 | 2004-10-21 | Sanyo Electric Co Ltd | 誤書込み防止回路および該誤書込み防止回路を含む半導体装置 |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100832276B1 (ko) * | 2005-03-02 | 2008-05-26 | 닛토덴코 가부시키가이샤 | 광학 필름, 그 제조 방법, 및 광학 필름을 사용하는 화상표시 장치 |
KR100796898B1 (ko) * | 2006-01-31 | 2008-01-22 | 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 | 액정 표시 장치 |
KR100802414B1 (ko) * | 2006-04-18 | 2008-02-13 | 강윤규 | 진동발생장치 |
KR100817992B1 (ko) * | 2006-05-10 | 2008-03-31 | 가시오게산키 가부시키가이샤 | 표시장치 및 그 제조방법 |
KR100791542B1 (ko) * | 2006-10-31 | 2008-01-03 | 한국전력공사 | 중수로 원자력 발전소의 압력관 건전성 평가방법 |
KR100811728B1 (ko) * | 2006-12-12 | 2008-03-11 | 담양군 | 기능성 대나무 판지의 제조방법 |
KR100789727B1 (ko) * | 2007-02-28 | 2008-01-03 | 세메스 주식회사 | 평판 패널 세정 장치 |
KR100840929B1 (ko) * | 2007-04-20 | 2008-06-24 | 장성원 | 좌변기용 위생시트 보관함 |
KR100811085B1 (ko) * | 2007-07-04 | 2008-03-07 | 조영자 | 버튼을 이용한 트렁크 열림 시스템 |
US8653864B2 (en) | 2009-09-29 | 2014-02-18 | Semiconductor Components Industries, Llc | Reset circuit |
US9209796B2 (en) | 2009-09-29 | 2015-12-08 | Semiconductor Components Industries, Llc | Method for operating a backup circuit and circuit therefor |
Also Published As
Publication number | Publication date |
---|---|
JP5111791B2 (ja) | 2013-01-09 |
CN101093988A (zh) | 2007-12-26 |
KR20070120894A (ko) | 2007-12-26 |
CN101093988B (zh) | 2010-06-23 |
US7453295B2 (en) | 2008-11-18 |
US20080012613A1 (en) | 2008-01-17 |
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