JP6515549B2 - マルチ出力電源装置 - Google Patents
マルチ出力電源装置 Download PDFInfo
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- JP6515549B2 JP6515549B2 JP2015010757A JP2015010757A JP6515549B2 JP 6515549 B2 JP6515549 B2 JP 6515549B2 JP 2015010757 A JP2015010757 A JP 2015010757A JP 2015010757 A JP2015010757 A JP 2015010757A JP 6515549 B2 JP6515549 B2 JP 6515549B2
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- power supply
- feedback
- output power
- voltage
- average value
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- 238000004804 winding Methods 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 17
- 101100112673 Rattus norvegicus Ccnd2 gene Proteins 0.000 claims description 8
- 238000012935 Averaging Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- 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
- H02M3/33523—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 with galvanic isolation between input and output of both the power stage and the feedback loop
-
- 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
-
- 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
- H02M3/285—Single converters with a plurality of output stages connected in parallel
-
- 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
- H02M3/33561—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 having more than one ouput with independent control
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Description
Vout=Vref×(1+Ra/Rb)×(Nsec/Naux)−ΔV
として与えられる。但し、Vrefは誤差アンプの基準電圧、Ra/Rbは前記分圧抵抗の抵抗値比、Nsec/Nauxは前記トランスT1における二次巻線S1と補助巻線A1との巻き数比である。更にΔVは前記フィードバック電圧検出回路FB1を構成するダイオード等によって発生する電位差である。
一次巻線と二次巻線と補助巻線とを有する複数のトランスと、
前記複数のトランスの各一次巻線にそれぞれ流れる電流を一括してオン・オフするスイッチング素子と、
前記複数のトランスの各補助巻線に誘起される電圧に基づいてフィードバック電圧を検出する複数のフィードバック電圧検出回路と、
前記複数のフィードバック電圧検出回路にてそれぞれ求められた前記フィードバック電圧の平均値を求める平均値回路と、
前記平均値回路により求められたフィードバック電圧平均値に応じて前記スイッチング素子のオン・オフをフィードバック制御する制御回路と、
を備え、
前記平均値回路は、複数のフィードバック信号入力端子を有し、該フィードバック信号入力端子がそれぞれ前記トランスの二次巻線側から絶縁されていることを特徴としている。
前記制御回路は、前記フィードバック電圧平均値と所定の内部基準電圧とを比較して前記スイッチング素子をオン・オフ制御するPWM信号を生成するものであってよい。
図1は、本発明の一実施形態に係るマルチ出力電源装置の要部概略構成図である。このマルチ出力電源装置は複数系統の出力を有するものであって、基本的には前述した図4(c)に示したマルチ出力電源装置と同様に構成される。尚、ここでは2系統の出力を有するマルチ出力電源装置について示すが、N系統(Nは2以上の整数)の出力を有するマルチ出力電源装置についても本発明は同様に適用可能である。
Vo=(1/N)ΣVinN
を前記フィードバック電圧平均値Vfb_aveとして求める役割を担う。
Vfb_ave=Vo=(Vin1+Vin2)/2
として求めるように構成される。
Vm=−(1/N)ΣVinN
なる出力電圧Vmを出力する。
Vo=−Vm=(1/N)ΣVinN
なる出力電圧Voを得、これを前記フィードバック電圧平均値Vfb_aveとして出力する反転バッファとしての役割を担う。
P1,P2 一次巻線
S1,S2 二次巻線
A1,A2 補助巻線
Q1 スイッチング素子
IC1 制御回路
FB1,FB2 フィードバック電圧検出回路
AVE 平均値回路
OP1,OP2 演算増幅回路
Claims (6)
- 一次巻線と二次巻線と補助巻線とを有する複数のトランスと、
前記複数のトランスの各一次巻線にそれぞれ流れる電流を一括してオン・オフするスイッチング素子と、
前記複数のトランスの各補助巻線に誘起される電圧に基づいてフィードバック電圧を検出する複数のフィードバック電圧検出回路と、
前記複数のフィードバック電圧検出回路にてそれぞれ検出されたフィードバック電圧の平均値を求める平均値回路と、
前記平均値回路により求められたフィードバック電圧平均値に応じて前記スイッチング
素子のオン・オフをフィードバック制御する制御回路と、
を備え、
前記平均値回路は、複数のフィードバック信号入力端子を有し、該フィードバック信号入力端子がそれぞれ前記トランスの二次巻線側から絶縁されていることを特徴とするマルチ出力電源装置。 - 前記補助巻線の1つは、該補助巻線に誘起される電圧を前記制御回路に供給する請求項1に記載のマルチ出力電源装置。
- 前記複数のフィードバック電圧検出回路は、それぞれ、前記複数のトランスの各補助巻線に誘起される電圧を分圧する分圧抵抗を有する請求項1または2に記載のマルチ出力電源装置。
- 前記制御回路は、前記平均値回路と一体に集積回路化されている請求項1から3のいずれか一項に記載のマルチ出力電源装置。
- 前記平均値回路は、N個(Nは2以上の整数)の前記フィードバック信号の各電圧Vin1〜VinNの総和を上記Nで除した出力電圧Voを前記フィードバック電圧平均値として求めるものである請求項1から4のいずれか一項に記載のマルチ出力電源装置。
- 前記制御回路は、前記フィードバック電圧平均値と所定の内部基準電圧とを比較して前記スイッチング素子をオン・オフ制御するPWM信号を生成するものである請求項1から5のいずれか一項に記載のマルチ出力電源装置。
Priority Applications (2)
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JP2015010757A JP6515549B2 (ja) | 2015-01-22 | 2015-01-22 | マルチ出力電源装置 |
US14/989,608 US9935557B2 (en) | 2015-01-22 | 2016-01-06 | Multi-output power supply |
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---|---|---|---|
JP2015010757A JP6515549B2 (ja) | 2015-01-22 | 2015-01-22 | マルチ出力電源装置 |
Publications (2)
Publication Number | Publication Date |
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JP2016135089A JP2016135089A (ja) | 2016-07-25 |
JP6515549B2 true JP6515549B2 (ja) | 2019-05-22 |
Family
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Country Status (2)
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US (1) | US9935557B2 (ja) |
JP (1) | JP6515549B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150280580A1 (en) * | 2014-03-28 | 2015-10-01 | Hep Tech Co., Ltd. | Power conversion apparatus |
JP2023128079A (ja) * | 2022-03-02 | 2023-09-14 | 株式会社デンソー | 絶縁電源装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55136872A (en) * | 1979-04-11 | 1980-10-25 | Nec Corp | Multiple-outputs switching regulator |
JPS62196071A (ja) * | 1986-02-24 | 1987-08-29 | Fanuc Ltd | パワ−デバイス駆動用電源 |
JPH0878964A (ja) | 1994-09-07 | 1996-03-22 | Fujitsu Ltd | 多出力電源におけるクロスレギュレーション回路 |
JPH11178356A (ja) * | 1997-12-11 | 1999-07-02 | Hitachi Ltd | 電気自動車用制御装置 |
JP4294942B2 (ja) * | 2002-11-19 | 2009-07-15 | フォスター電機株式会社 | スイッチング電源装置 |
US7505288B2 (en) * | 2005-11-29 | 2009-03-17 | Potentia Semiconductor Corporation | DC converter with independently controlled outputs |
US7339361B2 (en) * | 2006-06-26 | 2008-03-04 | Intersil Americas Inc. | Multi-phase DC-DC converter using auxiliary resistor network to feed back multiple single-ended sensed currents to supervisory controller for balanced current-sharing among plural channels |
JP2008172979A (ja) * | 2007-01-15 | 2008-07-24 | Toyota Motor Corp | スイッチング電源装置 |
JP5117980B2 (ja) * | 2008-10-02 | 2013-01-16 | パナソニック株式会社 | エネルギー伝達装置およびエネルギー伝達制御用半導体装置 |
JP5510292B2 (ja) * | 2010-11-30 | 2014-06-04 | 富士電機株式会社 | ゲート駆動用電源装置およびインバータ制御回路 |
US8953341B2 (en) * | 2011-05-09 | 2015-02-10 | Infineon Technologies Ag | Converter with reduced power consumption |
EP2605388B1 (en) * | 2011-12-15 | 2020-12-30 | Hewlett-Packard Development Company, L.P. | Switch mode power supply for an image forming apparatus |
KR101337349B1 (ko) * | 2012-03-21 | 2013-12-06 | 주식회사 동운아나텍 | 조명 구동 장치 및 그 방법 |
US9620969B2 (en) * | 2013-01-24 | 2017-04-11 | Mitsubishi Electric Corporation | Storage battery equalization device capable of charging battery pack including storage battery modules having different output voltages in short time |
WO2014170976A1 (ja) * | 2013-04-17 | 2014-10-23 | 三菱電機株式会社 | スイッチング電源回路およびその制御方法 |
US9712070B2 (en) * | 2013-06-04 | 2017-07-18 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power conversion device |
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2015
- 2015-01-22 JP JP2015010757A patent/JP6515549B2/ja active Active
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2016
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Publication number | Publication date |
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US9935557B2 (en) | 2018-04-03 |
US20160218633A1 (en) | 2016-07-28 |
JP2016135089A (ja) | 2016-07-25 |
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