JP2014027714A - 電源装置、点灯装置およびそれを用いた照明器具並びに車両 - Google Patents
電源装置、点灯装置およびそれを用いた照明器具並びに車両 Download PDFInfo
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
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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
- H02M3/02—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
- F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
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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
- H02M1/14—Arrangements for reducing ripples from dc input or output
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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
-
- 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
- H02M3/005—Conversion of dc power input into dc power output using Cuk 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
- H02M3/02—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
-
- 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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/26—Circuit arrangements for protecting against earth faults
-
- 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
- H02M3/1557—Single ended primary inductor converters [SEPIC]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B44/00—Circuit arrangements for operating electroluminescent light sources
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- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Dc-Dc Converters (AREA)
Abstract
【解決手段】本実施形態の電源装置では、コンデンサCOの高電位側の端子と入力端子IT1の間にコンデンサC2が挿入されている。そのため、低電位側の出力端子T02が地絡した場合、直流電源E1に接続される入力側と負荷に接続される出力側とがコンデンサC2によって直流的に遮断されるため、地絡電流が継続的に流れることはない。故に、漏電が生じた場合に回路に流れる漏電電流をゼロ又はほぼゼロに抑制することができ、その結果、漏電に伴う不具合(回路の故障など)の発生を抑えることができる。
【選択図】 図1
Description
本発明に係る電源装置の実施形態1は、図1(a)に示すようにコンデンサ(第2のコンデンサ)C2が追加された点に特徴があり、その他の構成については図12に示した従来例と共通である。したがって、従来例と共通の構成要素には同一の符号を付して適宜説明を省略する。
本実施形態の電源装置は、図5に示すようにコンデンサC2と並列に抵抗R1が接続されている点と、入力端子IT1,IT2と並列に平滑用のコンデンサCIが接続されている点と、制御回路CNの構成とに特徴があり、それ以外の構成については実施形態1と共通である。故に、実施形態1と共通の構成要素には同一の符号を付して適宜説明を省略する。なお、本実施形態における負荷Xは、複数個の固体発光素子(例えば、発光ダイオードや有機エレクトロルミネセンス素子など)の直列回路又は直並列回路からなる照明負荷であり、本実施形態の電源装置は、照明負荷を点灯する点灯装置に相当する。
本発明に係る照明器具の実施形態を図10に示し、本発明に係る車両の実施形態を図11に示す。本実施形態の照明器具Aは、自動車などの車両Bの前照灯(ヘッドライト)であって、実施形態1又は2の電源装置(点灯装置)1、照明負荷X、器具本体(灯体)2、カバー3、光学ユニット4、放熱板5などを備える。
T1 トランス
N1 1次巻線
N2 2次巻線
C1 平滑コンデンサ(第1のコンデンサ)
C2 コンデンサ(第2のコンデンサ)
L1 インダクタ
E1 直流電源
X 負荷
Claims (10)
- 高周波でスイッチングされるスイッチング素子と、前記スイッチング素子を介して直流電源の電源電圧が1次巻線に印加されるトランスと、前記トランスの2次巻線に直列接続される整流素子とを具備し、前記トランスの1次巻線並びに前記スイッチング素子の少なくとも何れか一方からなる回路要素と、前記トランスの2次巻線及び前記整流素子の直列回路の両端とが、第1のコンデンサ及び第2のコンデンサを介して接続され、前記直列回路の両端と負荷とが直接あるいはインダクタを介して接続されることを特徴とする電源装置。
- 前記トランスの1次巻線と前記第1のコンデンサと前記トランスの2次巻線と前記整流素子の入力側端子とが順番に直列接続され、前記トランスの1次巻線と前記第1のコンデンサの接続点に前記スイッチング素子の一端が接続され、前記第1のコンデンサと前記トランスの2次巻線の接続点に前記インダクタの一端が接続され、前記スイッチング素子の他端と前記整流素子の出力側端子との間に前記第2のコンデンサが接続され、前記トランスの1次巻線の他端が前記直流電源の正極と接続され、前記スイッチング素子と前記第2のコンデンサの接続点が前記直流電源の負極と接続され、前記インダクタの他端と、前記整流素子と前記第2のコンデンサの接続点との間に前記負荷が接続されることを特徴とする請求項1記載の電源装置。
- 前記第2のコンデンサの静電容量が前記第1のコンデンサの静電容量よりも大きいことを特徴とする請求項1又は2記載の電源装置。
- 前記第2のコンデンサに第2の抵抗が並列に接続されることを特徴とする請求項1〜3の何れか1項に記載の電源装置。
- 前記スイッチング素子をスイッチング制御する制御回路を備え、前記制御回路は、前記第2のコンデンサと前記整流素子の出力側端子との接続点の電位を監視し、前記電位が所定の範囲を外れた場合に前記スイッチング素子のスイッチングを停止することを特徴とする請求項4記載の電源装置。
- 前記制御回路は、前記負荷に供給される出力電流を監視し、前記出力電流が所定の電流値となるように前記スイッチング素子をスイッチング制御することを特徴とする請求項5記載の電源装置。
- 前記トランスは、前記1次巻線と前記2次巻線の実質的な巻数比が3以下であることを特徴とする請求項1〜6の何れか1項に記載の電源装置。
- 請求項1〜7の何れかの電源装置における前記負荷として、固体発光素子からなる照明負荷が用いられることを特徴とする点灯装置。
- 請求項8の点灯装置と、前記照明負荷を保持する器具本体とを備えることを特徴とする照明器具。
- 請求項9の照明器具が搭載されていることを特徴とする車両。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012163846A JP6008279B2 (ja) | 2012-07-24 | 2012-07-24 | 電源装置、点灯装置およびそれを用いた照明器具並びに車両 |
EP13173789.2A EP2690771B1 (en) | 2012-07-24 | 2013-06-26 | Power supply device, lighting device, lighting fixture using the same, and vehicle |
US13/944,150 US20140028187A1 (en) | 2012-07-24 | 2013-07-17 | Power supply device, lighting device, lighting fixture using the same, and vehicle |
KR1020130086516A KR101553746B1 (ko) | 2012-07-24 | 2013-07-23 | 전원 장치, 조명 장치, 이를 이용하는 조명 기구 및 차량 |
CN201310314882.4A CN103582248B (zh) | 2012-07-24 | 2013-07-24 | 电源装置、点亮装置、使用点亮装置的照明器具和车辆 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012163846A JP6008279B2 (ja) | 2012-07-24 | 2012-07-24 | 電源装置、点灯装置およびそれを用いた照明器具並びに車両 |
Publications (2)
Publication Number | Publication Date |
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JP2014027714A true JP2014027714A (ja) | 2014-02-06 |
JP6008279B2 JP6008279B2 (ja) | 2016-10-19 |
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JP2012163846A Active JP6008279B2 (ja) | 2012-07-24 | 2012-07-24 | 電源装置、点灯装置およびそれを用いた照明器具並びに車両 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140028187A1 (ja) |
EP (1) | EP2690771B1 (ja) |
JP (1) | JP6008279B2 (ja) |
KR (1) | KR101553746B1 (ja) |
CN (1) | CN103582248B (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016134502A1 (en) * | 2015-02-26 | 2016-09-01 | Tridonic Gmbh & Co. Kg | Operating device for an illuminant |
US9942953B2 (en) * | 2015-07-07 | 2018-04-10 | Panasonic Intellectual Property Management Co., Ltd. | Power supply device serving as DC power supply, and lighting fixture |
CN110832771B (zh) * | 2017-04-28 | 2023-09-19 | 柏林之声音频系统有限公司 | 信号放大器电路、电压转换器和系统 |
CN110035581B (zh) * | 2019-04-22 | 2023-10-13 | 上海芯荃微电子科技有限公司 | 慢计时模块 |
JP7191767B2 (ja) * | 2019-05-27 | 2022-12-19 | 株式会社東芝 | 電流検出回路 |
GB2621272A (en) * | 2021-05-28 | 2024-02-07 | Tridonic Gmbh & Co Kg | Light emitting diode converter and LED device |
US12068687B2 (en) * | 2021-10-15 | 2024-08-20 | Advanced Micro Devices, Inc. | Method to reduce overshoot in a voltage regulating power supply |
Citations (3)
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JPH08507195A (ja) * | 1993-12-14 | 1996-07-30 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | クロック制御される給電源 |
JP2002159172A (ja) * | 2000-11-15 | 2002-05-31 | Matsushita Electric Works Ltd | 電源装置及び放電灯点灯装置 |
JP2009284721A (ja) * | 2008-05-26 | 2009-12-03 | Panasonic Electric Works Co Ltd | 電源装置および灯具、車両 |
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JPS5855751B2 (ja) * | 1976-01-29 | 1983-12-12 | ソニー株式会社 | 電源回路 |
US4184197A (en) * | 1977-09-28 | 1980-01-15 | California Institute Of Technology | DC-to-DC switching converter |
US4257087A (en) * | 1979-04-02 | 1981-03-17 | California Institute Of Technology | DC-to-DC switching converter with zero input and output current ripple and integrated magnetics circuits |
US5583421A (en) * | 1994-08-10 | 1996-12-10 | Hewlett-Packard Company | Sepic converter with transformerless line isolation |
US6144565A (en) * | 1999-07-20 | 2000-11-07 | Semtech Corporation | Variation on a single-ended primary inductor converter |
JP4236894B2 (ja) * | 2002-10-08 | 2009-03-11 | 株式会社小糸製作所 | 点灯回路 |
AU2003279491A1 (en) * | 2002-10-16 | 2004-05-13 | Thomson Licensing S.A. | Capacitively coupled power supply |
JP4935499B2 (ja) * | 2007-05-18 | 2012-05-23 | サンケン電気株式会社 | 直流変換装置 |
US8058861B2 (en) | 2007-06-05 | 2011-11-15 | Bayer Materialscience Ag | Miniature high-voltage power supplies |
EP2023475B1 (de) * | 2007-08-04 | 2016-10-12 | SMA Solar Technology AG | Wechselrichter für eine geerdete Gleichspannungsquelle, insbesondere einen Photovoltaikgenerator |
JP5149686B2 (ja) * | 2008-04-24 | 2013-02-20 | パナソニック株式会社 | 電力変換装置及びそれを用いた放電灯点灯装置、並びに車両用前照灯装置 |
JP5161040B2 (ja) * | 2008-11-11 | 2013-03-13 | スタンレー電気株式会社 | 車両用灯具の点灯制御装置 |
JP6016153B2 (ja) * | 2011-05-24 | 2016-10-26 | パナソニックIpマネジメント株式会社 | 電源装置及びそれを用いた灯具並びに車両 |
JP5546710B2 (ja) * | 2012-04-27 | 2014-07-09 | 三菱電機株式会社 | Dc/dcコンバータ、車載機器および充電装置 |
JP6160955B2 (ja) * | 2013-07-10 | 2017-07-12 | パナソニックIpマネジメント株式会社 | 発光ダイオード駆動装置、それを備えた車両用照明装置および車両 |
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2012
- 2012-07-24 JP JP2012163846A patent/JP6008279B2/ja active Active
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2013
- 2013-06-26 EP EP13173789.2A patent/EP2690771B1/en active Active
- 2013-07-17 US US13/944,150 patent/US20140028187A1/en not_active Abandoned
- 2013-07-23 KR KR1020130086516A patent/KR101553746B1/ko not_active IP Right Cessation
- 2013-07-24 CN CN201310314882.4A patent/CN103582248B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08507195A (ja) * | 1993-12-14 | 1996-07-30 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | クロック制御される給電源 |
JP2002159172A (ja) * | 2000-11-15 | 2002-05-31 | Matsushita Electric Works Ltd | 電源装置及び放電灯点灯装置 |
JP2009284721A (ja) * | 2008-05-26 | 2009-12-03 | Panasonic Electric Works Co Ltd | 電源装置および灯具、車両 |
Also Published As
Publication number | Publication date |
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JP6008279B2 (ja) | 2016-10-19 |
KR20140013963A (ko) | 2014-02-05 |
EP2690771A2 (en) | 2014-01-29 |
CN103582248A (zh) | 2014-02-12 |
KR101553746B1 (ko) | 2015-09-16 |
EP2690771A3 (en) | 2017-11-29 |
CN103582248B (zh) | 2016-02-24 |
EP2690771B1 (en) | 2019-12-18 |
US20140028187A1 (en) | 2014-01-30 |
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