WO2009078271A1 - Ｄｃ－ｄｃコンバータおよび電源制御用半導体集積回路 - Google Patents

Ｄｃ－ｄｃコンバータおよび電源制御用半導体集積回路 Download PDF

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Publication number
WO2009078271A1
WO2009078271A1 PCT/JP2008/071846 JP2008071846W WO2009078271A1 WO 2009078271 A1 WO2009078271 A1 WO 2009078271A1 JP 2008071846 W JP2008071846 W JP 2008071846W WO 2009078271 A1 WO2009078271 A1 WO 2009078271A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching element
inductor
power supply
time
converter
Prior art date
Application number
PCT/JP2008/071846
Other languages
English (en)
French (fr)
Inventor
Heisuke Nakashima
Original Assignee
Mitsumi Electric Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsumi Electric Co., Ltd. filed Critical Mitsumi Electric Co., Ltd.
Priority to US12/808,048 priority Critical patent/US8456143B2/en
Publication of WO2009078271A1 publication Critical patent/WO2009078271A1/ja

Links

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
    • H02M3/02—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
    • 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
    • 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)

Abstract

　同期整流型のスイッチング・レギュレータにおいて、駆動用スイッチング素子のオン時間が回路の特性で決まるような最小オン時間よりも短くなるような軽負荷時にも、スイッチング周波数を変化させないで済むような制御技術を提供する。 　直流電源から供給される直流入力電圧をインダクタ（コイル）に印加して電流を流しコイルにエネルギーを蓄積させる駆動用スイッチング素子（ＳＷ１）と、該駆動用スイッチング素子がオフされているエネルギー放出期間にインダクタの電流を整流する整流用スイッチング素子（ＳＷ２）を備えた同期整流型のスイッチング・レギュレータにおいて、軽負荷時に整流用スイッチング素子をオフさせるタイミングを、出力からインダクタにエネルギーを蓄積させるように遅くし、そのオン時間を、誤差アンプの出力によって、負荷が軽くなるほど長くなるように制御するようにした。
PCT/JP2008/071846 2007-12-14 2008-12-02 Ｄｃ－ｄｃコンバータおよび電源制御用半導体集積回路 WO2009078271A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/808,048 US8456143B2 (en) 2007-12-14 2008-12-02 DC-DC converter and semiconductor integrated circuit for controlling power source

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007323761A JP4720821B2 (ja) 2007-12-14 2007-12-14 Ｄｃ−ｄｃコンバータおよび電源制御用半導体集積回路
JP2007-323761 2007-12-14

Publications (1)

Publication Number Publication Date
WO2009078271A1 true WO2009078271A1 (ja) 2009-06-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/071846 WO2009078271A1 (ja) 2007-12-14 2008-12-02 Ｄｃ－ｄｃコンバータおよび電源制御用半導体集積回路

Country Status (3)

Country Link
US (1) US8456143B2 (ja)
JP (1) JP4720821B2 (ja)
WO (1) WO2009078271A1 (ja)

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Also Published As

Publication number Publication date
US8456143B2 (en) 2013-06-04
JP2009148094A (ja) 2009-07-02
JP4720821B2 (ja) 2011-07-13
US20100283442A1 (en) 2010-11-11

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