JP5315087B2 - 昇圧回路 - Google Patents
昇圧回路 Download PDFInfo
- Publication number
- JP5315087B2 JP5315087B2 JP2009038149A JP2009038149A JP5315087B2 JP 5315087 B2 JP5315087 B2 JP 5315087B2 JP 2009038149 A JP2009038149 A JP 2009038149A JP 2009038149 A JP2009038149 A JP 2009038149A JP 5315087 B2 JP5315087 B2 JP 5315087B2
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- JP
- Japan
- Prior art keywords
- voltage
- output terminal
- booster
- boosted voltage
- transistor
- 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.)
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- 238000007599 discharging Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 10
- 230000007257 malfunction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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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
- H02M3/158—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 including plural semiconductor devices as final control devices for a single load
- H02M3/1584—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 including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Read Only Memory (AREA)
- Semiconductor Integrated Circuits (AREA)
Description
また、NMOSトランジスタ31の閾値電圧を調整することで、昇圧動作停止時にNMOSトランジスタ31がオンするタイミングを調整することが出来る。
2 周辺回路
10、20 昇圧部
30、40 ディスチャージ回路
41 レベルシフタ
Claims (4)
- 入力された電源電圧を昇圧して出力する昇圧回路であって、
第一昇圧電圧と、前記第一昇圧電圧よりも高い第二昇圧電圧を出力する昇圧部と、
前記第一昇圧電圧を出力する第一出力端子と、
前記第二昇圧電圧を出力する第二出力端子と、
前記昇圧部が昇圧動作を停止した後に、前記第一出力端子の電圧を放電する第一ディスチャージ回路と、
前記昇圧部が昇圧動作を停止した後に、前記第二出力端子の電圧を放電する第二ディスチャージ回路と、を備え
前記第二ディスチャージ回路は、前記第二出力端子の電圧と前記第一出力端子の電圧の差の電圧が所定電圧以下のとき、前記第一出力端子の電位に放電することを特徴とする昇圧回路。 - 前記昇圧回路は、更に、制御信号が入力される制御端子を備え、
前記第二ディスチャージ回路は、
ソースが前記第一出力端子に接続され、ドレインが前記第二出力端子に接続され、ゲートが前記制御端子に接続された第一トランジスタと、
ソースが前記第二出力端子に接続され、ゲートが前記第一出力端子に接続された第二トランジスタと、
ソースが所定電位に接続され、ドレインが前記第二トランジスタのドレインと接続され、ゲートが前記制御端子に接続された第三トランジスタと、を備え、
前記所定電圧が、前記第二トランジスタの閾値電圧の絶対値であることを特徴とする請求項1に記載の昇圧回路。 - 前記第一トランジスタは、ディプレッション型MOSトランジスタである請求項2に記載の昇圧回路。
- 前記所定電位は、接地電位であることを特徴とする請求項2または3に記載の昇圧回路。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009038149A JP5315087B2 (ja) | 2009-02-20 | 2009-02-20 | 昇圧回路 |
TW099103653A TWI514772B (zh) | 2009-02-20 | 2010-02-06 | 昇壓電路 |
US12/706,992 US8203378B2 (en) | 2009-02-20 | 2010-02-17 | Boosting circuit |
KR1020100014514A KR101437201B1 (ko) | 2009-02-20 | 2010-02-18 | 승압 회로 |
CN201010119515.5A CN101814831B (zh) | 2009-02-20 | 2010-02-20 | 升压电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009038149A JP5315087B2 (ja) | 2009-02-20 | 2009-02-20 | 昇圧回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010193688A JP2010193688A (ja) | 2010-09-02 |
JP5315087B2 true JP5315087B2 (ja) | 2013-10-16 |
Family
ID=42621978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009038149A Active JP5315087B2 (ja) | 2009-02-20 | 2009-02-20 | 昇圧回路 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8203378B2 (ja) |
JP (1) | JP5315087B2 (ja) |
KR (1) | KR101437201B1 (ja) |
CN (1) | CN101814831B (ja) |
TW (1) | TWI514772B (ja) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125962A (en) * | 1980-03-10 | 1981-10-02 | Canon Inc | Power source voltage detector |
JPS62135230A (ja) * | 1985-12-04 | 1987-06-18 | 日本電気株式会社 | 多出力電源装置 |
KR100264959B1 (ko) * | 1997-04-30 | 2000-10-02 | 윤종용 | 반도체 장치의 고전압발생회로 |
JP3872927B2 (ja) * | 2000-03-22 | 2007-01-24 | 株式会社東芝 | 昇圧回路 |
CN1219352C (zh) * | 2001-12-17 | 2005-09-14 | 松下电器产业株式会社 | 放大电路 |
JP4158856B2 (ja) * | 2003-04-17 | 2008-10-01 | 松下電器産業株式会社 | 昇圧電源回路 |
JP4426361B2 (ja) * | 2004-03-31 | 2010-03-03 | パナソニック株式会社 | 不揮発性半導体記憶装置 |
JP3972916B2 (ja) * | 2004-04-08 | 2007-09-05 | セイコーエプソン株式会社 | 昇圧回路及び半導体集積回路 |
JP4077429B2 (ja) * | 2004-06-09 | 2008-04-16 | 株式会社東芝 | 昇圧回路 |
JP5224659B2 (ja) * | 2006-07-13 | 2013-07-03 | ルネサスエレクトロニクス株式会社 | 半導体記憶装置 |
JP2008092667A (ja) * | 2006-10-02 | 2008-04-17 | Seiko Instruments Inc | 昇圧回路を有する電子機器 |
US7777557B2 (en) * | 2007-01-17 | 2010-08-17 | Panasonic Corporation | Booster circuit |
JP2008198985A (ja) * | 2007-01-17 | 2008-08-28 | Matsushita Electric Ind Co Ltd | 昇圧回路 |
-
2009
- 2009-02-20 JP JP2009038149A patent/JP5315087B2/ja active Active
-
2010
- 2010-02-06 TW TW099103653A patent/TWI514772B/zh active
- 2010-02-17 US US12/706,992 patent/US8203378B2/en not_active Expired - Fee Related
- 2010-02-18 KR KR1020100014514A patent/KR101437201B1/ko active IP Right Grant
- 2010-02-20 CN CN201010119515.5A patent/CN101814831B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US8203378B2 (en) | 2012-06-19 |
KR20100095376A (ko) | 2010-08-30 |
TWI514772B (zh) | 2015-12-21 |
CN101814831A (zh) | 2010-08-25 |
TW201042922A (en) | 2010-12-01 |
CN101814831B (zh) | 2014-09-17 |
US20100214011A1 (en) | 2010-08-26 |
KR101437201B1 (ko) | 2014-09-03 |
JP2010193688A (ja) | 2010-09-02 |
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