JP4777730B2 - Dc−dcコンバータ - Google Patents
Dc−dcコンバータ Download PDFInfo
- Publication number
- JP4777730B2 JP4777730B2 JP2005271359A JP2005271359A JP4777730B2 JP 4777730 B2 JP4777730 B2 JP 4777730B2 JP 2005271359 A JP2005271359 A JP 2005271359A JP 2005271359 A JP2005271359 A JP 2005271359A JP 4777730 B2 JP4777730 B2 JP 4777730B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- signal
- voltage
- output abnormality
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/009—Converters characterised by their input or output configuration having two or more independently controlled outputs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
2、42 遅延回路部
3、43 ラッチ回路
21 発振回路
22 誤差増幅回路
23 基準電圧回路
24 PWMコンパレータ
25 UVLO回路
26 バッファ回路
27 タイマーラッチ式短絡保護回路
36 スイッチングレギュレータ制御回路
Claims (3)
- 出力端子の出力電圧の低下を検出すると、出力異常検出信号を出力する検出回路と、
前記出力異常検出信号が所定時間以上入力されると、出力異常信号を出力する遅延回路と、
前記出力異常信号を保持するラッチ回路と、
入力端子の電源電圧の低下を検出すると、UVLO信号を出力するUVLO回路と、を備え、
前記ラッチ回路は、前記出力異常信号と前記UVLO信号との積によってリセットされ、
前記遅延回路は、前記ラッチ回路から出力される前記出力異常信号によってリセットされる、
ことを特徴とするDC−DCコンバータ。 - 前記遅延回路は、電源とGND間に直列に接続された定電流回路と容量と、
前記容量と並列に接続し、前記出力異常検出信号によって制御されるスイッチ素子と、
前記容量の電圧をモニタして所定の電圧になったら前記出力異常信号を出力する比較回路と、からなることを特徴とする請求項1記載のDC−DCコンバータ。 - 前記スイッチ素子は、前記検出回路から出力される前記出力異常検出信号により、前記容量が充電されるよう制御され、前記ラッチ回路から出力される前記出力異常信号により、前記容量が放電するよう制御されることを特徴とする請求項2記載のDC−DCコンバータ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005271359A JP4777730B2 (ja) | 2005-09-20 | 2005-09-20 | Dc−dcコンバータ |
US11/521,676 US7443641B2 (en) | 2005-09-20 | 2006-09-14 | DC-DC converter including short-circuit protection circuit |
TW095134472A TWI423573B (zh) | 2005-09-20 | 2006-09-18 | Dc-dc轉換器 |
CN2006101371377A CN1960148B (zh) | 2005-09-20 | 2006-09-20 | 包括短路保护电路的直流-直流转换器 |
KR1020060091161A KR101211982B1 (ko) | 2005-09-20 | 2006-09-20 | 단락 보호 회로를 가지는 dc-dc 컨버터 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005271359A JP4777730B2 (ja) | 2005-09-20 | 2005-09-20 | Dc−dcコンバータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007089239A JP2007089239A (ja) | 2007-04-05 |
JP4777730B2 true JP4777730B2 (ja) | 2011-09-21 |
Family
ID=37883855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005271359A Expired - Fee Related JP4777730B2 (ja) | 2005-09-20 | 2005-09-20 | Dc−dcコンバータ |
Country Status (5)
Country | Link |
---|---|
US (1) | US7443641B2 (ja) |
JP (1) | JP4777730B2 (ja) |
KR (1) | KR101211982B1 (ja) |
CN (1) | CN1960148B (ja) |
TW (1) | TWI423573B (ja) |
Families Citing this family (36)
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CN101231401B (zh) * | 2007-01-26 | 2010-05-26 | 群康科技(深圳)有限公司 | 面板控制电路 |
JP2008306788A (ja) * | 2007-06-05 | 2008-12-18 | Ricoh Co Ltd | スイッチングレギュレータ及びスイッチングレギュレータの動作制御方法 |
US20090115390A1 (en) * | 2007-11-05 | 2009-05-07 | Chen-Min Chen | Power converter with protection mechanism for diode in open-circuit condition and pulse-width-modulation controller thereof |
KR101286241B1 (ko) | 2007-11-26 | 2013-07-15 | 삼성전자주식회사 | 최대 전압 선택회로 |
JP5091024B2 (ja) * | 2008-06-24 | 2012-12-05 | 株式会社リコー | スイッチングレギュレータ及びその動作制御方法 |
JP5601696B2 (ja) * | 2009-03-23 | 2014-10-08 | ローム株式会社 | 電源装置 |
TWI382625B (zh) * | 2009-07-13 | 2013-01-11 | Asus Technology Pte Ltd | 具軟啟動功能直流-直流轉換器的啟動短路保護裝置與方法 |
US8502590B2 (en) * | 2009-12-14 | 2013-08-06 | The Boeing Company | System and method of controlling devices operating within different voltage ranges |
KR20120013777A (ko) | 2010-08-06 | 2012-02-15 | 삼성모바일디스플레이주식회사 | 유기 발광 표시 장치 및 유기 발광 표시 장치의 전원 공급 방법 |
KR101254263B1 (ko) | 2010-11-23 | 2013-04-12 | 삼성디스플레이 주식회사 | 전원 변환기, 직류-직류 변환기를 포함하는 표시 장치, 표시 장치를 포함하는 시스템 및 표시 장치의 구동 방법 |
US8817429B2 (en) | 2010-11-23 | 2014-08-26 | Samsung Display Co., Ltd. | Power converter, display device including power converter, system including display device, and method of driving display device |
KR101646910B1 (ko) * | 2011-01-11 | 2016-08-09 | 페어차일드코리아반도체 주식회사 | 파워 온 리셋 회로를 포함하는 반도체 소자 |
KR101860739B1 (ko) | 2011-05-18 | 2018-05-25 | 삼성디스플레이 주식회사 | 전원 변환기, 이를 포함하는 디스플레이 장치 및 구동 전압 제어 방법 |
KR101875220B1 (ko) * | 2011-06-08 | 2018-07-06 | 매그나칩 반도체 유한회사 | Led 구동회로 |
CN102510207B (zh) * | 2011-08-29 | 2014-05-21 | 广州金升阳科技有限公司 | 用于dc/dc电源变换器缓冲输出的短路保护方法及电路 |
KR101305723B1 (ko) * | 2011-12-18 | 2013-09-06 | 엘지이노텍 주식회사 | 래치 제어 회로 |
JP6030836B2 (ja) * | 2012-02-13 | 2016-11-24 | エスアイアイ・セミコンダクタ株式会社 | スイッチングレギュレータ |
KR20140077058A (ko) * | 2012-12-13 | 2014-06-23 | 현대자동차주식회사 | Dc-dc컨버터의 고장검출 시스템 |
TW201427214A (zh) * | 2012-12-24 | 2014-07-01 | Infinno Technology Corp | 電源供應器之保護電路 |
US9112495B1 (en) | 2013-03-15 | 2015-08-18 | Mie Fujitsu Semiconductor Limited | Integrated circuit device body bias circuits and methods |
JP2014199724A (ja) * | 2013-03-29 | 2014-10-23 | パナソニック株式会社 | 回路遮断器の不足電圧引き外し装置及び過電圧・不足電圧引き外し装置 |
TWI563871B (en) * | 2013-04-08 | 2016-12-21 | Alpha & Omega Semiconductor Cayman Ltd | Led backlighting system,illuminating system,voltage sensing controller for asynchronous dc-dc boost converter and method for selectively isolating input power supply and load thereof |
KR102202413B1 (ko) | 2014-01-21 | 2021-01-14 | 삼성디스플레이 주식회사 | 출력 전압 제어 방법, 이 출력 전압 제어 방법을 수행하는 출력 전압 제어 장치 및 이 출력 전압 제어 장치를 포함하는 표시 장치 |
CN103944141A (zh) * | 2014-04-02 | 2014-07-23 | 美的集团股份有限公司 | 一种空调器及其压缩机保护电路 |
CN104078939B (zh) | 2014-06-25 | 2018-02-27 | 台达电子企业管理(上海)有限公司 | 功率变换器、短路保护电路与控制方法 |
KR102518922B1 (ko) * | 2016-01-21 | 2023-04-07 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 구동 방법 |
JP6695176B2 (ja) * | 2016-03-16 | 2020-05-20 | エイブリック株式会社 | スイッチングレギュレータ |
JP2017200386A (ja) * | 2016-04-28 | 2017-11-02 | エスアイアイ・セミコンダクタ株式会社 | Dcdcコンバータ |
CN105810163B (zh) * | 2016-05-04 | 2018-08-14 | 深圳市华星光电技术有限公司 | 升压型直流-直流转换器 |
JP6653635B2 (ja) | 2016-07-11 | 2020-02-26 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
TWI622778B (zh) * | 2016-12-30 | 2018-05-01 | 技嘉科技股份有限公司 | 檢測裝置 |
TWI669892B (zh) * | 2018-03-20 | 2019-08-21 | 力智電子股份有限公司 | 直流-直流轉換控制器及其運作方法 |
KR102299582B1 (ko) | 2020-01-06 | 2021-09-08 | 현대엘리베이터주식회사 | 단락전류 보호 장치 및 이를 구비한 엘리베이터 인버터용 smps |
KR20210113527A (ko) | 2020-03-06 | 2021-09-16 | 삼성디스플레이 주식회사 | 전원 제공부 및 그 구동 방법 |
KR20230064045A (ko) * | 2021-11-02 | 2023-05-10 | 삼성디스플레이 주식회사 | 전원 제공부 및 이를 포함하는 표시 장치 |
TWI798993B (zh) * | 2021-12-13 | 2023-04-11 | 大陸商北京歐錸德微電子技術有限公司 | 檢測電路、直流-直流轉換器及供電裝置 |
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JPH01148066A (ja) * | 1987-12-04 | 1989-06-09 | Nec Corp | スイッチングレギュレータコントロールic |
JP3561064B2 (ja) * | 1995-12-21 | 2004-09-02 | 富士通株式会社 | スイッチングレギュレータ |
JP4772980B2 (ja) * | 2001-04-19 | 2011-09-14 | セイコーインスツル株式会社 | ボルテージレギュレータ |
JP4096297B2 (ja) | 2002-06-28 | 2008-06-04 | 株式会社リコー | 保護回路とdc/dcコンバータおよびタイマーラッチ回路 |
JP2004173460A (ja) * | 2002-11-22 | 2004-06-17 | Fujitsu Ltd | Dc−dcコンバータの制御方法、dc−dcコンバータ、半導体集積回路装置、及び電子機器 |
JP4191090B2 (ja) * | 2004-05-17 | 2008-12-03 | セイコーインスツル株式会社 | スイッチングレギュレータ |
US7710700B2 (en) * | 2005-01-10 | 2010-05-04 | Linear Technology Corporation | DC/DC converter with current limit protection |
US7310251B2 (en) * | 2006-02-24 | 2007-12-18 | System General Corp. | Control circuit having two-level under voltage lockout threshold to improve the protection of power supply |
-
2005
- 2005-09-20 JP JP2005271359A patent/JP4777730B2/ja not_active Expired - Fee Related
-
2006
- 2006-09-14 US US11/521,676 patent/US7443641B2/en not_active Expired - Fee Related
- 2006-09-18 TW TW095134472A patent/TWI423573B/zh active
- 2006-09-20 CN CN2006101371377A patent/CN1960148B/zh not_active Expired - Fee Related
- 2006-09-20 KR KR1020060091161A patent/KR101211982B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR20070032926A (ko) | 2007-03-23 |
US7443641B2 (en) | 2008-10-28 |
TWI423573B (zh) | 2014-01-11 |
JP2007089239A (ja) | 2007-04-05 |
KR101211982B1 (ko) | 2012-12-13 |
US20070064455A1 (en) | 2007-03-22 |
TW200729680A (en) | 2007-08-01 |
CN1960148A (zh) | 2007-05-09 |
CN1960148B (zh) | 2010-11-17 |
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