JP4239111B2 - Ac−dcコンバータ - Google Patents
Ac−dcコンバータ Download PDFInfo
- Publication number
- JP4239111B2 JP4239111B2 JP2007157936A JP2007157936A JP4239111B2 JP 4239111 B2 JP4239111 B2 JP 4239111B2 JP 2007157936 A JP2007157936 A JP 2007157936A JP 2007157936 A JP2007157936 A JP 2007157936A JP 4239111 B2 JP4239111 B2 JP 4239111B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- switching element
- output
- signal
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- 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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0032—Control circuits allowing low power mode operation, e.g. in standby mode
-
- 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
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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)
- Rectifiers (AREA)
Description
直流−直流変換回路(10)の主スイッチング素子(9)のオン・オフ動作によりトランス(8)のいずれかの巻線に発生する電圧(VN)を検出して、電圧(VN)の極性が一方側のとき、出力信号(VCP1)を発生する巻線電圧検出回路(21)と、巻線電圧検出回路(21)の出力信号(VCP1)から三角波信号の出力電圧(VRC)を生成する三角波発生回路(23)と、三角波発生回路(23)の出力電圧(VRC)と昇圧チョッパ回路(3)の出力電圧(VCH)とを比較して、三角波発生回路(23)の出力電圧(VRC)が昇圧チョッパ回路(3)の出力電圧(VCH)を超えたとき、昇圧チョッパ回路(3)の昇圧用スイッチング素子(5)に駆動信号(VG1)を付与するPWM回路(27)とを更に備え、PWM回路(27)は、軽負荷時の主スイッチング素子(9)のオン期間中に、三角波発生回路(23)の出力電圧(VRC)が昇圧チョッパ回路(3)の出力電圧(VCH)に達せず、昇圧用スイッチング素子(5)をオフ状態に保持する。
Claims (2)
- 交流電源からの交流電圧を整流する整流回路と、
該整流回路の出力端子に接続されるリアクトル、該リアクトルに直列に接続される昇圧用スイッチング素子及び前記リアクトルに直列に接続されかつ前記昇圧用スイッチング素子に並列に接続されるコンデンサを備え、前記昇圧用スイッチング素子のオン・オフ動作により、前記リアクトルを通じて前記整流回路の出力電圧を昇圧する昇圧チョッパ回路と、
該昇圧チョッパ回路のリアクトルに直列に接続されるトランスの1次巻線及び少なくとも1つの主スイッチング素子を有し、該主スイッチング素子のオン・オフ動作により前記トランスの2次巻線から整流平滑回路を介して直流電圧を取り出す直流−直流変換回路とを備えるAC−DCコンバータにおいて、
前記直流−直流変換回路の主スイッチング素子のオン・オフ動作により前記トランスのいずれかの巻線に発生する電圧を検出して、該電圧の極性が一方側のとき、出力信号を発生する巻線電圧検出回路と、
該巻線電圧検出回路の出力信号から三角波信号の出力電圧を生成する三角波発生回路と、
該三角波発生回路の出力電圧と前記昇圧チョッパ回路の出力電圧とを比較して、前記三角波発生回路の出力電圧が前記昇圧チョッパ回路の出力電圧を超えたとき、前記昇圧チョッパ回路の昇圧用スイッチング素子に駆動信号を付与するPWM回路とを更に備え、
該PWM回路は、軽負荷時の前記主スイッチング素子のオン期間中に、前記三角波発生回路の出力電圧が前記昇圧チョッパ回路の出力電圧に達せず、前記昇圧用スイッチング素子をオフ状態に保持することを特徴とするAC−DCコンバータ。 - 前記巻線電圧検出回路に接続される補助巻線を前記トランスに設け、前記PWM回路が出力信号を発生するとき、前記昇圧用スイッチング素子をオフからオンに切り換え、前記トランスの補助巻線に発生する電圧の極性が反転したとき、前記昇圧用スイッチング素子をオンからオフに切り換える請求項1に記載のAC−DCコンバータ。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007157936A JP4239111B2 (ja) | 2007-06-14 | 2007-06-14 | Ac−dcコンバータ |
US12/663,842 US8564975B2 (en) | 2007-06-14 | 2008-03-12 | AC-DC converter |
PCT/JP2008/054467 WO2008152838A1 (ja) | 2007-06-14 | 2008-03-12 | Ac-dcコンバータ |
CN2008800186395A CN101682255B (zh) | 2007-06-14 | 2008-03-12 | Ac-dc变换器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007157936A JP4239111B2 (ja) | 2007-06-14 | 2007-06-14 | Ac−dcコンバータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008312355A JP2008312355A (ja) | 2008-12-25 |
JP4239111B2 true JP4239111B2 (ja) | 2009-03-18 |
Family
ID=40129451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007157936A Expired - Fee Related JP4239111B2 (ja) | 2007-06-14 | 2007-06-14 | Ac−dcコンバータ |
Country Status (4)
Country | Link |
---|---|
US (1) | US8564975B2 (ja) |
JP (1) | JP4239111B2 (ja) |
CN (1) | CN101682255B (ja) |
WO (1) | WO2008152838A1 (ja) |
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US9155174B2 (en) | 2009-09-30 | 2015-10-06 | Cirrus Logic, Inc. | Phase control dimming compatible lighting systems |
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WO2013179571A1 (ja) * | 2012-06-01 | 2013-12-05 | 旭化成エレクトロニクス株式会社 | Dc-dcコンバータ |
JP5920076B2 (ja) * | 2012-07-13 | 2016-05-18 | 富士電機株式会社 | スイッチング電源装置 |
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JPH0720371B2 (ja) | 1989-05-31 | 1995-03-06 | サンケン電気株式会社 | 直流電源装置 |
JP2739706B2 (ja) | 1993-09-17 | 1998-04-15 | 東光株式会社 | Ac−dcコンバータ |
PT813767E (pt) | 1995-03-09 | 2002-10-31 | Rca Thomson Licensing Corp | Fonte de alimentacao de modo comutada com pre-conversos sincrono |
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-
2007
- 2007-06-14 JP JP2007157936A patent/JP4239111B2/ja not_active Expired - Fee Related
-
2008
- 2008-03-12 CN CN2008800186395A patent/CN101682255B/zh not_active Expired - Fee Related
- 2008-03-12 WO PCT/JP2008/054467 patent/WO2008152838A1/ja active Application Filing
- 2008-03-12 US US12/663,842 patent/US8564975B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101682255A (zh) | 2010-03-24 |
JP2008312355A (ja) | 2008-12-25 |
US8564975B2 (en) | 2013-10-22 |
CN101682255B (zh) | 2012-09-19 |
WO2008152838A1 (ja) | 2008-12-18 |
US20100188874A1 (en) | 2010-07-29 |
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