JP4924659B2 - Dc−dcコンバータ - Google Patents
Dc−dcコンバータ Download PDFInfo
- Publication number
- JP4924659B2 JP4924659B2 JP2009127586A JP2009127586A JP4924659B2 JP 4924659 B2 JP4924659 B2 JP 4924659B2 JP 2009127586 A JP2009127586 A JP 2009127586A JP 2009127586 A JP2009127586 A JP 2009127586A JP 4924659 B2 JP4924659 B2 JP 4924659B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- load
- feedback
- switching frequency
- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
- H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
-
- 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
以上の構成によれば、直線対数変換回路12のオペアンプOP2の出力により、コンデンサC1を充放電する。充電電流は、定抵抗R8〜R11による充電とし、放電電流は、Vc端子電圧に対応した定電流放電とする。このため、図6に示すようにVc端子の電圧に比例して発振周波数が変化する。
Q1,Q2 スイッチ素子
Lr リアクトル
T トランス
P 1次巻線
S1,S2 2次巻線
D1〜D6 ダイオード
Co 平滑コンデンサ
Cri 電流共振コンデンサ
Crv 電圧共振コンデンサ
PC フォトカプラ
10,10a,10b 制御回路
11,11a,11b 発振回路
12 直線対数変換回路
13 D型フリップフロップ回路
14,15 デットタイム作成回路
16 レベルシフト回路
17,18 バッファ回路
20 電圧検出回路
OP1,OP2,OP3 オペアンプ
R1〜R11 抵抗
C1 コンデンサ
Tr1〜Tr4 トランジスタ
E1〜E3 電源
Claims (4)
- 直流電源の両端に接続され且つ直列に接続された複数のスイッチ素子と、
前記複数のスイッチ素子の接続点と前記直流電源の一端とに接続され、トランスの1次巻線とコンデンサとが直列に接続された直列回路と、
前記トランスの2次巻線に発生する電圧を整流及び平滑して直流電圧を取り出し負荷に供給する整流平滑回路と、
前記直流電圧の検出値に応じたフィードバック信号のフィードバック量に対応して前記複数のスイッチ素子のスイッチング周波数を可変させると共に、前記複数のスイッチ素子のデューティは一定で前記複数のスイッチ素子を交互にオフ・オフさせる制御回路とを備え、
前記制御回路は、重負荷時の前記フィードバック量に対する前記スイッチング周波数の変化に対して、軽負荷時から無負荷時までの前記フィードバック量に対する前記スイッチング周波数の変化を大きくするために、前記フィードバック量に対して前記スイッチング周波数を非線形に変化させる非線形変化手段を備えることを特徴とするDC−DCコンバータ。 - 前記非線形変化手段は、前記フィードバック量に対して前記スイッチング周波数を指数特性で変化させることを特徴とする請求項1記載のDC−DCコンバータ。
- 前記非線形変化手段は、前記フィードバック量に対して前記スイッチング周波数を非線形に変化させる発振回路からなることを特徴とする請求項1又は請求項2記載のDC−DCコンバータ。
- 前記非線形変化手段は、線形に変化する前記フィードバック量を非線形に変化するフィードバック量に変換する線形非線形変換器と、
前記線形非線形変換器からの非線形に変化するフィードバック量に対応して前記スイッチング周波数を正比例させて変化させる発振回路と、
を有することを特徴とする請求項1又は請求項2記載のDC−DCコンバータ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009127586A JP4924659B2 (ja) | 2009-05-27 | 2009-05-27 | Dc−dcコンバータ |
US12/781,238 US8416582B2 (en) | 2009-05-27 | 2010-05-17 | DC-DC converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009127586A JP4924659B2 (ja) | 2009-05-27 | 2009-05-27 | Dc−dcコンバータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010279118A JP2010279118A (ja) | 2010-12-09 |
JP4924659B2 true JP4924659B2 (ja) | 2012-04-25 |
Family
ID=43220022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009127586A Expired - Fee Related JP4924659B2 (ja) | 2009-05-27 | 2009-05-27 | Dc−dcコンバータ |
Country Status (2)
Country | Link |
---|---|
US (1) | US8416582B2 (ja) |
JP (1) | JP4924659B2 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8817494B2 (en) * | 2010-08-09 | 2014-08-26 | Sanken Electric Co., Ltd. | PFC AC/DC converter reducing harmonics, switching loss, and switching noise |
JP2012120362A (ja) | 2010-12-02 | 2012-06-21 | Sanken Electric Co Ltd | Dc−dcコンバータ |
JP2013153620A (ja) * | 2012-01-26 | 2013-08-08 | Fuji Electric Co Ltd | スイッチング電源装置 |
US9030850B2 (en) | 2011-07-07 | 2015-05-12 | Fuji Electric Co., Ltd. | Resonant switching regulator with adaptive dead time |
JP5942350B2 (ja) * | 2011-07-07 | 2016-06-29 | 富士電機株式会社 | スイッチング電源装置およびその制御装置 |
CN103105956B (zh) * | 2011-11-11 | 2015-05-06 | 汉王科技股份有限公司 | 位置指示装置及方法 |
JP6089529B2 (ja) * | 2012-09-20 | 2017-03-08 | 富士電機株式会社 | スイッチング電源装置 |
JP6402474B2 (ja) * | 2013-07-17 | 2018-10-10 | 富士電機株式会社 | スイッチング電源の制御装置 |
EP2903146B1 (en) * | 2014-02-03 | 2019-03-20 | STMicroelectronics Srl | Monophase or polyphase resonant converter with feedback control |
US10075085B2 (en) * | 2015-05-22 | 2018-09-11 | The Hong Kong University Of Science And Technology | Gallium nitride driver with tuned dead-time |
CN108123606B (zh) * | 2016-11-30 | 2020-05-01 | 赤多尼科两合股份有限公司 | 开关电源的控制电路 |
JP7160658B2 (ja) * | 2018-12-06 | 2022-10-25 | 曙ブレーキ工業株式会社 | 直流電源装置および電力制御方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4700285A (en) * | 1986-11-18 | 1987-10-13 | National Semiconductor Corporation | Combined PWM-FM control method and circuit for the high efficiency control of resonant switch mode inverters/converters |
DE19725842C2 (de) * | 1997-06-18 | 1999-04-22 | Siemens Ag | Schaltungsanordnung zur Erzeugung einer lastunabhängigen Gleichspannung |
DE19824409A1 (de) * | 1998-05-30 | 1999-12-02 | Philips Patentverwaltung | AC-DC-Wandler |
JP4314709B2 (ja) * | 1999-12-28 | 2009-08-19 | ソニー株式会社 | スイッチング電源装置 |
JP2005039975A (ja) | 2003-07-18 | 2005-02-10 | Sony Corp | 電流共振型コンバータ装置 |
JP5056149B2 (ja) * | 2007-05-14 | 2012-10-24 | サンケン電気株式会社 | Dc−dcコンバータ |
-
2009
- 2009-05-27 JP JP2009127586A patent/JP4924659B2/ja not_active Expired - Fee Related
-
2010
- 2010-05-17 US US12/781,238 patent/US8416582B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US8416582B2 (en) | 2013-04-09 |
JP2010279118A (ja) | 2010-12-09 |
US20100302817A1 (en) | 2010-12-02 |
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