JP2006197755A - 多出力型dc−dcコンバータ - Google Patents
多出力型dc−dcコンバータ Download PDFInfo
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- JP2006197755A JP2006197755A JP2005008160A JP2005008160A JP2006197755A JP 2006197755 A JP2006197755 A JP 2006197755A JP 2005008160 A JP2005008160 A JP 2005008160A JP 2005008160 A JP2005008160 A JP 2005008160A JP 2006197755 A JP2006197755 A JP 2006197755A
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- Prior art keywords
- output
- secondary winding
- transformer
- voltage
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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
- H02M3/33561—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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- 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
- H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
【解決手段】本発明による多出力型DC−DCコンバータでは、トランス(5)の第1の2次巻線(5b)と第2の2次巻線(5c)との間に1次巻線(5a)が介在するため、第1の2次巻線(5b)と第2の2次巻線(5c)が電磁的に疎結合となる。これにより、軽負荷時又は無負荷時において2次側の出力制御用MOS-FET(20)がオフしたときにトランス(5)の第2の2次巻線(5c)から第1の2次巻線(5b)に誘起されるサージ電圧が低減されるので、1次側制御回路(14)での帰還制御によるトランス(5)の1次側から2次側への電力伝達の制限が緩和される。このため、前記のサージ電圧による第2の整流平滑回路(17)の出力電圧VO2の変動を抑制できるので、無負荷から全ての負荷の範囲に亘って安定な複数の直流出力VO1,VO2を取得することが可能となる。
【選択図】図1
Description
Claims (2)
- 直流電源に対して直列に接続された第1及び第2の1次側スイッチング素子と、該第1又は第2の1次側スイッチング素子に対して並列に接続されたコンデンサ及びインダクタンス及びトランスの1次巻線の直列回路と、前記トランスの第1の2次巻線に接続された第1の整流平滑回路と、該第1の整流平滑回路の出力電圧に基づいて前記第1及び第2の1次側スイッチング素子のオン・オフを制御する1次側制御回路と、前記トランスの第2の2次巻線に接続された第2の整流平滑回路と、前記トランスの第2の2次巻線と前記第2の整流平滑回路を構成する平滑コンデンサとの間に接続された2次側スイッチング素子と、前記平滑コンデンサの電圧に基づいて前記2次側スイッチング素子のオン・オフを制御する2次側制御回路とを備え、
前記第1及び第2の1次側スイッチング素子のオン・オフにより、前記トランスの第1の2次巻線から前記第1の整流平滑回路を介して第1の直流出力を取り出すと共に、前記トランスの第2の2次巻線から前記第2の整流平滑回路を介して第2の直流出力を取り出す多出力型DC−DCコンバータにおいて、
前記第1又は第2の1次側スイッチング素子のオンと同時又は或る一定の時間が経過したときに前記2次側スイッチング素子をオンに切り換え、
前記トランスの前記第1の2次巻線と前記第2の2次巻線とを電磁的に疎結合としたことを特徴とする多出力型DC−DCコンバータ。 - 前記トランスは、前記1次巻線を介して前記第1の2次巻線と前記第2の2次巻線とをコア上に巻装した請求項1に記載の多出力型DC−DCコンバータ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005008160A JP4671019B2 (ja) | 2005-01-14 | 2005-01-14 | 多出力型dc−dcコンバータ |
US11/330,811 US7304867B2 (en) | 2005-01-14 | 2006-01-12 | DC-DC converter of multi-output type |
KR1020060003952A KR20060083162A (ko) | 2005-01-14 | 2006-01-13 | 다출력형 dc-dc 컨버터 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005008160A JP4671019B2 (ja) | 2005-01-14 | 2005-01-14 | 多出力型dc−dcコンバータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006197755A true JP2006197755A (ja) | 2006-07-27 |
JP4671019B2 JP4671019B2 (ja) | 2011-04-13 |
Family
ID=36683693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005008160A Expired - Fee Related JP4671019B2 (ja) | 2005-01-14 | 2005-01-14 | 多出力型dc−dcコンバータ |
Country Status (3)
Country | Link |
---|---|
US (1) | US7304867B2 (ja) |
JP (1) | JP4671019B2 (ja) |
KR (1) | KR20060083162A (ja) |
Cited By (8)
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WO2012073706A1 (ja) * | 2010-12-02 | 2012-06-07 | 株式会社村田製作所 | スイッチング電源回路 |
WO2012073707A1 (ja) * | 2010-12-02 | 2012-06-07 | 株式会社村田製作所 | スイッチング電源回路 |
US8385089B2 (en) | 2007-06-11 | 2013-02-26 | Sanken Electric Co., Ltd. | Multiple-output switching power supply unit |
JP2013229990A (ja) * | 2012-04-25 | 2013-11-07 | Nichicon Corp | スイッチング電源用トランスおよびこれを備えたスイッチング電源 |
CN103546039A (zh) * | 2012-07-09 | 2014-01-29 | 株式会社村田制作所 | 开关电源装置 |
KR20160082793A (ko) | 2014-12-29 | 2016-07-11 | 주식회사 솔루엠 | 전원 공급 장치 |
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US8154894B1 (en) * | 2005-10-13 | 2012-04-10 | ERP Power, LLC | Multiple voltage DC to DC resonant converter |
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TW200823939A (en) * | 2006-04-20 | 2008-06-01 | Spi Electronic Co Ltd | Transformer having leakage inductance control |
EP1860838B1 (de) * | 2006-05-24 | 2013-08-14 | Infineon Technologies AG | Datenübertragung durch Phasenmodulation über zwei Signalpfaden |
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US9519300B2 (en) * | 2007-12-20 | 2016-12-13 | Ken Tsz Kin Mok | Reducing cross-regulation interferences between voltage regulators |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8385089B2 (en) | 2007-06-11 | 2013-02-26 | Sanken Electric Co., Ltd. | Multiple-output switching power supply unit |
US9548662B2 (en) | 2010-12-02 | 2017-01-17 | Murata Manufacturing Co., Ltd. | Switching power-supply circuit |
WO2012073707A1 (ja) * | 2010-12-02 | 2012-06-07 | 株式会社村田製作所 | スイッチング電源回路 |
CN103250337A (zh) * | 2010-12-02 | 2013-08-14 | 株式会社村田制作所 | 开关电源电路 |
US9621048B2 (en) | 2010-12-02 | 2017-04-11 | Murata Manufacturing Co., Ltd. | Switching power-supply circuit |
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CN103546039B (zh) * | 2012-07-09 | 2015-09-02 | 株式会社村田制作所 | 开关电源装置 |
CN103546039A (zh) * | 2012-07-09 | 2014-01-29 | 株式会社村田制作所 | 开关电源装置 |
KR20160082793A (ko) | 2014-12-29 | 2016-07-11 | 주식회사 솔루엠 | 전원 공급 장치 |
JP2016140159A (ja) * | 2015-01-26 | 2016-08-04 | 株式会社デンソー | Dcdcコンバータ |
JP2017126675A (ja) * | 2016-01-14 | 2017-07-20 | キヤノン株式会社 | 電源装置、画像形成装置及びトランス |
Also Published As
Publication number | Publication date |
---|---|
US20060158908A1 (en) | 2006-07-20 |
KR20060083162A (ko) | 2006-07-20 |
US7304867B2 (en) | 2007-12-04 |
JP4671019B2 (ja) | 2011-04-13 |
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