JP5167733B2 - 昇圧型dc/dcコンバータ - Google Patents
昇圧型dc/dcコンバータ Download PDFInfo
- Publication number
- JP5167733B2 JP5167733B2 JP2007231524A JP2007231524A JP5167733B2 JP 5167733 B2 JP5167733 B2 JP 5167733B2 JP 2007231524 A JP2007231524 A JP 2007231524A JP 2007231524 A JP2007231524 A JP 2007231524A JP 5167733 B2 JP5167733 B2 JP 5167733B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- switching element
- power supply
- converter
- switching
- 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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- 239000003990 capacitor Substances 0.000 claims description 14
- 238000009499 grossing Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000004913 activation Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- 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
- H02M3/1588—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 comprising at least one synchronous rectifier element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
従来のスイッチング型DC/DCコンバータでは、出力電圧でスイッチング素子を制御しているため、出力電圧が低い場合(たとえば起動時)には、2つのスイッチング素子を制御する電圧も低くなる。このとき、スイッチング素子のオン抵抗が大きくなるためスイッチング素子での損失が大きくなり、DC/DCコンバータ全体として変換効率が低下してしまう。そこで、本発明の昇圧型DC/DCコンバータでは、2つのスイッチング素子を制御する制御電圧を、起動後に所定のタイミングで切り替える。具体的には、起動時には、出力電圧とは別の電圧を制御電圧とし、所定のタイミングで、出力電圧に、切り替える。別の電圧としては、起動時に出力電圧より高い電圧であればよいが、ここではDC/DCコンバータに含まれる入力電源の電源電圧を用いる。こうして、スイッチング素子のオン抵抗を低い状態に制御することにより、スイッチング素子での損失を抑え、高効率な電力変換が得られる。
Claims (1)
- 負極がアースに接続される直流電源と、
前記直流電源の正極に接続されるインダクタと、
前記インダクタとアースの間に接続される第1のスイッチング素子と、
前記インダクタと平滑コンデンサの間に直列に接続される第2のスイッチング素子と、
前記第2のスイッチング素子とアースの間に接続される前記平滑コンデンサと、
前記第1及び第2のスイッチング素子のコントロール制御部に印加する電圧レベルを、起動時は、前記直流電源の電圧に設定し、その後で、前記平滑コンデンサの出力電圧に切り替える切替回路と、
前記切替回路に、前記電圧レベルの電圧を所定の周期で前記第1及び第2のスイッチング素子のコントロール制御部に印加させる制御部と
を備える昇圧型DC/DCコンバータであって、
前記切替回路は、前記第1のスイッチング素子と前記第2のスイッチング素子を制御する電圧レベルを、前記昇圧型DC/DCコンバータの発生する起動完了信号を入力するまでは前記直流電源の電圧に設定し、前記起動完了信号を入力した後は前記出力電圧に切り替え、
前記起動完了信号は前記平滑コンデンサの出力電圧が前記直流電源の電圧より高いときに生成される
ことを特徴とする
昇圧型DC/DCコンバータ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007231524A JP5167733B2 (ja) | 2007-09-06 | 2007-09-06 | 昇圧型dc/dcコンバータ |
US12/189,420 US7952338B2 (en) | 2007-09-06 | 2008-08-11 | Boost DC/DC converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007231524A JP5167733B2 (ja) | 2007-09-06 | 2007-09-06 | 昇圧型dc/dcコンバータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009065781A JP2009065781A (ja) | 2009-03-26 |
JP5167733B2 true JP5167733B2 (ja) | 2013-03-21 |
Family
ID=40431161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007231524A Active JP5167733B2 (ja) | 2007-09-06 | 2007-09-06 | 昇圧型dc/dcコンバータ |
Country Status (2)
Country | Link |
---|---|
US (1) | US7952338B2 (ja) |
JP (1) | JP5167733B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130128700A (ko) * | 2012-05-17 | 2013-11-27 | 현대모비스 주식회사 | 정전압 공급 장치 및 방법 |
EP4191857A1 (en) * | 2014-10-24 | 2023-06-07 | Texas Instruments Incorporated | Adaptive controller for a voltage converter |
JP6919920B2 (ja) * | 2014-10-24 | 2021-08-18 | テキサス インスツルメンツ インコーポレイテッド | 電圧コンバータのためのアダプティブコントローラ |
CN113131740A (zh) * | 2019-12-31 | 2021-07-16 | 华润微集成电路(无锡)有限公司 | 控制电压切换电路及相应的升压电路 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4801859A (en) * | 1986-12-23 | 1989-01-31 | Sundstrand Corporation | Boost/buck DC/DC converter |
JPH0583930A (ja) | 1991-09-19 | 1993-04-02 | Sony Corp | 電源装置 |
JP3257744B2 (ja) * | 1994-03-31 | 2002-02-18 | キヤノン株式会社 | 情報処理機の電源制御方法及び装置 |
JPH09215323A (ja) * | 1996-02-06 | 1997-08-15 | Fuji Electric Co Ltd | スイッチング電源装置 |
JP3863273B2 (ja) * | 1997-12-26 | 2006-12-27 | 富士通株式会社 | 電源装置 |
JP4706152B2 (ja) * | 2001-09-04 | 2011-06-22 | 富士電機システムズ株式会社 | 同期整流型スイッチング電源装置 |
JP2006074901A (ja) * | 2004-09-02 | 2006-03-16 | Matsushita Electric Ind Co Ltd | Dc−dcコンバータ |
JP4619822B2 (ja) | 2005-03-03 | 2011-01-26 | 株式会社リコー | スイッチングレギュレータ及びその電圧制御方法 |
JP4657789B2 (ja) * | 2005-04-21 | 2011-03-23 | ローム株式会社 | 昇圧型スイッチング電源装置及びこれを備えた電子機器 |
JP4573697B2 (ja) * | 2005-05-09 | 2010-11-04 | ローム株式会社 | スイッチングレギュレータ及びこれを備えた電子機器 |
EP2020076A2 (en) * | 2006-04-27 | 2009-02-04 | Aivaka | Startup for dc/dc converters |
US7378824B2 (en) * | 2006-05-26 | 2008-05-27 | Leadtrend Technology Corp. | Voltage converter capable of avoiding voltage drop occurring in input signal |
US8063615B2 (en) * | 2007-03-27 | 2011-11-22 | Linear Technology Corporation | Synchronous rectifier control for synchronous boost converter |
-
2007
- 2007-09-06 JP JP2007231524A patent/JP5167733B2/ja active Active
-
2008
- 2008-08-11 US US12/189,420 patent/US7952338B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7952338B2 (en) | 2011-05-31 |
US20090066302A1 (en) | 2009-03-12 |
JP2009065781A (ja) | 2009-03-26 |
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