JP2006311732A - 昇圧型dc−dc、および、昇圧型dc−dcを有する半導体装置 - Google Patents
昇圧型dc−dc、および、昇圧型dc−dcを有する半導体装置 Download PDFInfo
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- JP2006311732A JP2006311732A JP2005132521A JP2005132521A JP2006311732A JP 2006311732 A JP2006311732 A JP 2006311732A JP 2005132521 A JP2005132521 A JP 2005132521A JP 2005132521 A JP2005132521 A JP 2005132521A JP 2006311732 A JP2006311732 A JP 2006311732A
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- 239000004065 semiconductor Substances 0.000 title claims description 13
- 238000001514 detection method Methods 0.000 claims description 38
- 230000010355 oscillation Effects 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
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- 230000003071 parasitic effect Effects 0.000 description 1
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- 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
- 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
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
【解決手段】 電源と昇圧回路の昇圧出力の間にスイッチ素子を設け、さらに昇圧回路に入力される電力を蓄電し、この蓄電電力で昇圧回路を所定時間動作させる蓄電容量を追加し、スイッチ素子をオフしても、昇圧回路が昇圧電力を発生できる場合に、スイッチ素子をオフする構成の昇圧型DC−DCとする。
【選択図】 図1
Description
さらに、第2の手段として、電力を供給する電源と、前記電力を、該電力の電圧よりも高い電圧の昇圧電力に変換する昇圧回路と、前記昇圧電力で動作する負荷と、前記電源と前記昇圧回路の電源端子間に設けられ、前記電力の前記昇圧回路の電源端子への供給を制御するスイッチ素子と、前記電力を蓄電電力として蓄電し、前記電力の前記昇圧回路の電源端子への供給が途絶えても、前記蓄電電力で所定時間前記昇圧回路を動作できる蓄電容量と、前記昇圧回路の電源端子の電圧を検出し、該電圧の検出結果に応じて、スイッチ素子のオン、オフを制御する電圧検出回路と、を有し、前記昇圧回路は、前記スイッチ素子を介して供給される前記電力、あるいは、前記昇圧電力を前記電源端子に入力することで動作し、前記電圧検出回路は、前記昇圧回路の電源端子が、前記昇圧回路が動作できる電圧より高い第1の電圧以上となった場合、オンしていた前記スイッチ素子をオフし、一旦前記スイッチ素子をオフすると、所定時間オフしていた前記スイッチ素子をオンしない構成とした。
102、202 昇圧回路
103 負荷
104 PMOS
105 電圧検出回路
106 蓄電容量
205 クロック検出回路
304 ショットキーダイオード
Claims (4)
- 電力を供給する電源と、前記電力を、該電力の電圧よりも高い電圧の昇圧電力に変換する昇圧回路と、前記昇圧電力で動作する負荷と、前記電源と前記昇圧回路の電源端子間に設けられ、前記電力の前記昇圧回路の電源端子への供給を制御するスイッチ素子と、前記電力を蓄電電力として蓄電し、前記電力の前記昇圧回路の電源端子への供給が途絶えても、前記蓄電電力で所定時間前記昇圧回路を動作できる蓄電容量と、前記昇圧回路の電源端子の電圧を検出し、該電圧の検出結果に応じて、スイッチ素子のオン、オフを制御する電圧検出回路と、を有し、前記昇圧回路は、前記スイッチ素子を介して供給される前記電力、あるいは、前記昇圧電力を前記電源端子に入力することで動作し、前記電圧検出回路は、前記昇圧回路の電源端子が、前記昇圧回路が動作できる電圧より高い第1の電圧以上となった場合、オンしていた前記スイッチ素子をオフし、一旦前記スイッチ素子をオフすると、前記昇圧回路の電源端子の電圧が、前記前記昇圧回路が動作できる電圧以上で前記第1の電圧未満の第2の電圧を下回るまで、オフしていた前記スイッチ素子をオンせず、さらに、前記スイッチ素子を一旦オンすると、前記昇圧回路の電源端子の電圧が前記第1の電圧以上となるまで、オンしていた前記スイッチ素子をオフしないことを特徴とする半導体装置。
- 電力を供給する電源と、前記電力を、該電力の電圧よりも高い電圧の昇圧電力に変換する昇圧回路と、前記昇圧電力で動作する負荷と、前記電源と前記昇圧回路の電源端子間に設けられ、前記電力の前記昇圧回路の電源端子への供給を制御するスイッチ素子と、前記電力を蓄電電力として蓄電し、前記電力の前記昇圧回路の電源端子への供給が途絶えても、前記蓄電電力で所定時間前記昇圧回路を動作できる蓄電容量と、前記昇圧回路の電源端子の電圧を検出し、該電圧の検出結果に応じて、スイッチ素子のオン、オフを制御する電圧検出回路と、を有し、前記昇圧回路は、前記スイッチ素子を介して供給される前記電力、あるいは、前記昇圧電力を前記電源端子に入力することで動作し、前記電圧検出回路は、前記昇圧回路の電源端子が、前記昇圧回路が動作できる電圧より高い第1の電圧以上となった場合、オンしていた前記スイッチ素子をオフし、一旦前記スイッチ素子をオフすると、所定時間オフしていた前記スイッチ素子をオンしないことを特徴とする半導体装置。
- 電力を供給する電源と、前記電力を、該電力の電圧よりも高い電圧の昇圧電力に変換する昇圧回路と、前記昇圧電力で動作する負荷と、前記電源と前記昇圧回路の電源端子間に設けられ、前記電力の前記昇圧回路の電源端子への供給を制御するスイッチ素子と、前記電力を蓄電電力として蓄電し、前記電力の前記昇圧回路の電源端子への供給が途絶えても、前記蓄電電力で所定時間前記昇圧回路を動作できる蓄電容量と、前記昇圧回路の内部発振回路のクロック信号が出力されるクロック出力端子のクロック信号の周波数を検出し、該クロック信号の周波数に応じてスイッチ素子のオン、オフを制御するクロック検出回路と、を有し、前記昇圧回路は、前記スイッチ素子を介して供給される前記電力、あるいは、前記昇圧電力を前記電源端子に入力することで動作し、前記クロック検出回路は、前記クロック信号の周波数が、前記昇圧回路が前記昇圧電力を発生できる周波数より高い第1の周波数以上となった場合、オンしていた前記スイッチ素子をオフし、一旦前記スイッチ素子をオフすると、前記クロック信号の周波数が、前記昇圧回路が前記昇圧電力を発生できる周波数以上で前記第1の周波数未満の第2の周波数を下回るまで、オフしていた前記スイッチ素子をオンせず、さらに、前記スイッチ素子を一旦オンすると、前記クロック信号の周波数が前記第1の周波数以上となるまで、オンしていた前記スイッチ素子をオフしないことを特徴とする半導体装置。
- 電力を供給する電源と、前記電力を、該電力の電圧よりも高い電圧の昇圧電力に変換する昇圧回路と、前記昇圧電力で動作する負荷と、前記電源と前記昇圧回路の電源端子間に設けられ、前記電力の前記昇圧回路の電源端子への供給を制御するスイッチ素子と、前記電力を蓄電電力として蓄電し、前記電力の前記昇圧回路の電源端子への供給が途絶えても、前記蓄電電力で所定時間前記昇圧回路を動作できる蓄電容量と、前記昇圧回路の内部発振回路のクロック信号が出力されるクロック出力端子のクロック信号の周波数を検出し、該クロック信号の周波数に応じてスイッチ素子のオン、オフを制御するクロック検出回路と、を有し、前記昇圧回路は、前記スイッチ素子を介して供給される前記電力、あるいは、前記昇圧電力を前記電源端子に入力することで動作し、前記クロック検出回路は、前記クロック信号の周波数が、前記昇圧回路が前記昇圧電力を発生できる周波数より高い第1の周波数以上となった場合、オンしていた前記スイッチ素子をオフし、一旦前記スイッチ素子をオフすると、所定時間オフしていた前記スイッチ素子をオンしないことを特徴とする半導体装置。
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Application Number | Priority Date | Filing Date | Title |
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JP2005132521A JP4628172B2 (ja) | 2005-04-28 | 2005-04-28 | 昇圧型dc−dc、および、昇圧型dc−dcを有する半導体装置 |
TW095114113A TWI412218B (zh) | 2005-04-28 | 2006-04-20 | 昇壓型dc-dc及具有昇壓型dc-dc的半導體裝置 |
US11/412,311 US7443152B2 (en) | 2005-04-28 | 2006-04-26 | Boost DC-DC converter and semiconductor device having boost DC-DC converter |
KR1020060038838A KR20060113546A (ko) | 2005-04-28 | 2006-04-28 | 승압형 dc-dc 및 승압형 dc-dc 를 갖는 반도체장치 |
CN2006100898852A CN1862934B (zh) | 2005-04-28 | 2006-04-28 | 升压dc-dc转换器和具有升压dc-dc转换器的半导体器件 |
KR1020120120040A KR101228254B1 (ko) | 2005-04-28 | 2012-10-26 | 승압형 dc-dc 및 승압형 dc-dc 를 갖는 반도체 장치 |
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JP2005132521A JP4628172B2 (ja) | 2005-04-28 | 2005-04-28 | 昇圧型dc−dc、および、昇圧型dc−dcを有する半導体装置 |
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JP (1) | JP4628172B2 (ja) |
KR (2) | KR20060113546A (ja) |
CN (1) | CN1862934B (ja) |
TW (1) | TWI412218B (ja) |
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TWI764813B (zh) * | 2021-08-18 | 2022-05-11 | 立積電子股份有限公司 | 驅動電路 |
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JP2005102440A (ja) * | 2003-09-26 | 2005-04-14 | Seiko Instruments Inc | 電源システム |
JP2009038967A (ja) * | 2003-07-07 | 2009-02-19 | Nippon Telegr & Teleph Corp <Ntt> | 昇圧装置 |
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JP4031399B2 (ja) * | 2003-07-08 | 2008-01-09 | セイコーインスツル株式会社 | 半導体集積回路装置 |
JP4199706B2 (ja) * | 2004-07-13 | 2008-12-17 | 富士通マイクロエレクトロニクス株式会社 | 降圧回路 |
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2005
- 2005-04-28 JP JP2005132521A patent/JP4628172B2/ja active Active
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- 2006-04-20 TW TW095114113A patent/TWI412218B/zh active
- 2006-04-26 US US11/412,311 patent/US7443152B2/en active Active
- 2006-04-28 CN CN2006100898852A patent/CN1862934B/zh active Active
- 2006-04-28 KR KR1020060038838A patent/KR20060113546A/ko not_active Application Discontinuation
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Patent Citations (3)
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JPH05304765A (ja) * | 1991-07-02 | 1993-11-16 | Ricoh Co Ltd | Dc−dcコンバータ制御用ic |
JP2009038967A (ja) * | 2003-07-07 | 2009-02-19 | Nippon Telegr & Teleph Corp <Ntt> | 昇圧装置 |
JP2005102440A (ja) * | 2003-09-26 | 2005-04-14 | Seiko Instruments Inc | 電源システム |
Also Published As
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KR101228254B1 (ko) | 2013-01-30 |
KR20120125974A (ko) | 2012-11-19 |
TWI412218B (zh) | 2013-10-11 |
KR20060113546A (ko) | 2006-11-02 |
CN1862934B (zh) | 2010-06-16 |
TW200703866A (en) | 2007-01-16 |
JP4628172B2 (ja) | 2011-02-09 |
US7443152B2 (en) | 2008-10-28 |
CN1862934A (zh) | 2006-11-15 |
US20060256591A1 (en) | 2006-11-16 |
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