JP7022001B2 - スイッチング制御回路 - Google Patents
スイッチング制御回路 Download PDFInfo
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- JP7022001B2 JP7022001B2 JP2018075972A JP2018075972A JP7022001B2 JP 7022001 B2 JP7022001 B2 JP 7022001B2 JP 2018075972 A JP2018075972 A JP 2018075972A JP 2018075972 A JP2018075972 A JP 2018075972A JP 7022001 B2 JP7022001 B2 JP 7022001B2
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- JP
- Japan
- Prior art keywords
- switching
- switching control
- control circuit
- voltage
- power supply
- 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.)
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- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
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- 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
- H02M3/33515—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 digital control
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. 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
- 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
- H02M1/0035—Control circuits allowing low power mode operation, e.g. in standby mode using burst mode control
-
- 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
-
- 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
Description
図1は、スイッチング電源装置の全体構成例を示す図である。図1に示すスイッチング電源装置は、フライバック型コンバータを有する電源装置であって、主として、ダイオードブリッジDB1と、入力コンデンサCinと、トランスT1と、出力コンデンサCoutと、スイッチング制御IC(Integrated Circuit)1と、を備えている。
図2は、スイッチング制御IC1の一構成例を示す図である。図3は、リセット信号生成部の一構成例を示す図である。図4は、間欠動作モードでの動作波形図である。なお、図3中の電圧Vsourceはスイッチング制御IC1の1番端子に印加される電圧であり、図4中の電圧Vfbはスイッチング制御IC1の4番端子に印加される電圧であり、図4中の電圧Vfadjはスイッチング制御IC1の2番端子に印加される電圧である。
次に、先に説明した図1に示すスイッチング電源装置又はその変形例の用途例について説明する。 図7は、空気調和機の一構成例を示す外観図である。本構成例の空気調和機Yは、室内機Y1と、室外機Y2と、これらを連結する配管Y3と、を有する。なお、室内機Y1は、主として、蒸発器及び室内ファンを内蔵しており、室外機Y2は、主として、圧縮機、凝縮器、膨張弁、及び室外ファンを内蔵している。室内機Y1は、図1に示すスイッチング電源装置又はその変形例も内蔵している。
なお、本発明の構成は、上記実施形態のほか、発明の主旨を逸脱しない範囲で種々の変更を加えることが可能である。
Cin 入力コンデンサ
Cout 出力コンデンサ
DB1 ダイオードブリッジ
Q1 スイッチング素子
T1 トランス
Y 空気調和機
Y1 室内機
Y2 室外機
Claims (9)
- 入力電圧から出力電圧を生成するスイッチング電源装置に用いられ、前記スイッチング電源装置のスイッチング素子をスイッチングする動作期間と前記スイッチング素子をスイッチングしない休止期間とを繰り返す間欠動作モードを有するスイッチング制御回路であって、
前記間欠動作モードにおいて、前記動作期間の開始タイミングから所定時間が経過するまでは、次の前記動作期間の開始を禁止する禁止部を備える、スイッチング制御回路。 - 前記所定時間が4ms以上である、請求項1に記載のスイッチング制御回路。
- 前記スイッチング素子の最大スイッチング周波数が60kHz以上である、請求項1又は請求項2に記載のスイッチング制御回路。
- 受動素子が外部接続される端子を備え、
前記受動素子の回路定数に応じて前記所定時間が可変する、請求項1~3のいずれか一項に記載のスイッチング制御回路。 - 定電流源を備え、
前記受動素子が前記定電流源から出力される定電流によって充電されるコンデンサである、請求項4に記載のスイッチング制御回路。 - コンデンサと、前記コンデンサ及び前記受動素子それぞれに電流を供給するカレントミラー回路と、を備え、
前記受動素子が抵抗である、請求項4に記載のスイッチング制御回路。 - 前記所定時間は、前記コンデンサの充電開始から前記コンデンサの充電電圧が所定値に達するまでの時間である、請求項5又は請求項6に記載のスイッチング制御回路。
- スイッチング素子と、
前記スイッチング素子のスイッチングを制御する請求項1~7のいずれか一項に記載のスイッチング制御回路と、
を備える、スイッチング電源装置。 - 請求項8に記載のスイッチング電源装置を備える、電気機器。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018075972A JP7022001B2 (ja) | 2018-04-11 | 2018-04-11 | スイッチング制御回路 |
US16/355,993 US11011969B2 (en) | 2018-04-11 | 2019-03-18 | Switching control circuit, switching power supply, and electric apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2018075972A JP7022001B2 (ja) | 2018-04-11 | 2018-04-11 | スイッチング制御回路 |
Publications (2)
Publication Number | Publication Date |
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JP2019187110A JP2019187110A (ja) | 2019-10-24 |
JP7022001B2 true JP7022001B2 (ja) | 2022-02-17 |
Family
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Family Applications (1)
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JP2018075972A Active JP7022001B2 (ja) | 2018-04-11 | 2018-04-11 | スイッチング制御回路 |
Country Status (2)
Country | Link |
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US (1) | US11011969B2 (ja) |
JP (1) | JP7022001B2 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006050760A (ja) | 2004-08-04 | 2006-02-16 | New Japan Radio Co Ltd | スイッチング電源回路およびその制御方法 |
JP2012182953A (ja) | 2011-03-02 | 2012-09-20 | Funai Electric Co Ltd | フライバックコンバーター |
US20170063227A1 (en) | 2015-08-28 | 2017-03-02 | Sanken Electric Co., Ltd. | Switching Power-Supply Device |
JP2017225260A (ja) | 2016-06-16 | 2017-12-21 | 富士電機株式会社 | スイッチング電源装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6728117B2 (en) * | 2001-10-23 | 2004-04-27 | Koninklijke Philips Electronics N.V. | Frequency modulated self-oscillating switching power supply |
US7138843B2 (en) * | 2004-10-18 | 2006-11-21 | Micrel, Incorporated | Timer circuit with adaptive reference |
JP2007312515A (ja) * | 2006-05-18 | 2007-11-29 | Sony Corp | スイッチング電源装置、電子機器及びスイッチング電源回路の制御方法 |
JP2008245419A (ja) | 2007-03-27 | 2008-10-09 | Fuji Electric Device Technology Co Ltd | 負荷検出回路およびスイッチング電源回路 |
CN101924536B (zh) * | 2009-06-12 | 2012-05-02 | 昂宝电子(上海)有限公司 | 用于ccfl驱动系统的突发模式调光控制的低频振荡器 |
US9401657B2 (en) * | 2013-03-13 | 2016-07-26 | Power Integrations, Inc. | Input voltage sensor responsive to load conditions |
JP6497144B2 (ja) * | 2015-03-13 | 2019-04-10 | 富士電機株式会社 | スイッチング電源装置の制御回路およびスイッチング電源装置 |
US10367500B2 (en) * | 2017-12-08 | 2019-07-30 | Allegro Microsystems, Llc | Switching voltage regulator with variable minimum off-time |
-
2018
- 2018-04-11 JP JP2018075972A patent/JP7022001B2/ja active Active
-
2019
- 2019-03-18 US US16/355,993 patent/US11011969B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006050760A (ja) | 2004-08-04 | 2006-02-16 | New Japan Radio Co Ltd | スイッチング電源回路およびその制御方法 |
JP2012182953A (ja) | 2011-03-02 | 2012-09-20 | Funai Electric Co Ltd | フライバックコンバーター |
US20170063227A1 (en) | 2015-08-28 | 2017-03-02 | Sanken Electric Co., Ltd. | Switching Power-Supply Device |
JP2017225260A (ja) | 2016-06-16 | 2017-12-21 | 富士電機株式会社 | スイッチング電源装置 |
Also Published As
Publication number | Publication date |
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US20190319527A1 (en) | 2019-10-17 |
JP2019187110A (ja) | 2019-10-24 |
US11011969B2 (en) | 2021-05-18 |
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