JP5233042B2 - Led駆動回路 - Google Patents
Led駆動回路 Download PDFInfo
- Publication number
- JP5233042B2 JP5233042B2 JP2007123350A JP2007123350A JP5233042B2 JP 5233042 B2 JP5233042 B2 JP 5233042B2 JP 2007123350 A JP2007123350 A JP 2007123350A JP 2007123350 A JP2007123350 A JP 2007123350A JP 5233042 B2 JP5233042 B2 JP 5233042B2
- Authority
- JP
- Japan
- Prior art keywords
- light source
- circuit
- storage battery
- led light
- terminal
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Photovoltaic Devices (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Led Devices (AREA)
Description
11 LED光源
12 降圧型DC/DCコンバータ
13 積分回路
14 筐体
15 鉛蓄電池
16 コントローラ
17 送電線
Claims (1)
- 昼間に太陽電池から蓄電池に充電し、蓄電池に充電された電力で夜間照明するようにした光源システムにおいて、
蓄電池の充電及び放電を制御するコントローラと、
灯具筐体に設けられ、1又は直列に接続された複数のLEDからなり、蓄電池の電力によって夜間点灯されるLED光源と、
灯具筐体に内蔵され、太陽電池の1日の発電量を積算する積算回路と、
灯具筐体に内蔵され、CE端子への“H”信号の入力によってEXT端子に所定周波数の信号を出力するDC/DCコンバータにおける上記EXT端子がP型MOSFETのゲートに接続され、該P型MOSFETのドレインがインダクターを介して上記LED光源のアノード側端子に接続され、上記DC/DCコンバータのFB端子がLED光源のカソード側端子に接続されて該FB端子とグラウンド間を一定電圧に制御し、蓄電池の電力を上記インダクターの誘導電圧によって電圧降下させて上記LED光源に与える一方、上記LED光源のカソード側端子とグランドとの間には抵抗が接続されるとともに、該抵抗には第2の抵抗及びスイッチング素子の直列接続回路が相互に並列に接続され、上記積算回路の積算値に対応して上記スイッチング素子がON・OFFされることによって上記LED光源の通電電流値が設定されるようになっている降圧型DC/DCコンバータ回路と、
蓄電池からの電力を高電圧でもって上記DC/DCコンバータに送電する送電線と、
を備えたことを特徴とするLED駆動回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007123350A JP5233042B2 (ja) | 2007-05-08 | 2007-05-08 | Led駆動回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007123350A JP5233042B2 (ja) | 2007-05-08 | 2007-05-08 | Led駆動回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008282855A JP2008282855A (ja) | 2008-11-20 |
JP5233042B2 true JP5233042B2 (ja) | 2013-07-10 |
Family
ID=40143453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007123350A Expired - Fee Related JP5233042B2 (ja) | 2007-05-08 | 2007-05-08 | Led駆動回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5233042B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102097858B (zh) * | 2010-05-21 | 2013-03-13 | 湖南师范大学 | 用于大型led显示屏的混合直流电源*** |
JP2012023874A (ja) * | 2010-07-15 | 2012-02-02 | Fujitsu Ltd | 充電制御装置及び電源システム |
CN102454921A (zh) | 2010-10-15 | 2012-05-16 | 通用电气公司 | 柱安装的基于发光二极管(led)装置的灯及其电源 |
JP2013033700A (ja) * | 2011-07-05 | 2013-02-14 | Toshiba Lighting & Technology Corp | 照明装置及び屋外照明装置 |
JPWO2016132475A1 (ja) * | 2015-02-18 | 2017-04-27 | 三菱電機株式会社 | 発光装置及び発光装置のパラメータ設定方法 |
JP6634293B2 (ja) * | 2015-04-06 | 2020-01-22 | 株式会社小糸製作所 | 駆動回路、車両用灯具 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04357908A (ja) * | 1991-06-05 | 1992-12-10 | Matsushita Electric Ind Co Ltd | 照明装置付きベンチ |
JPH0935757A (ja) * | 1995-07-25 | 1997-02-07 | Hitachi Ltd | 独立型太陽光発電システムの収支判定制御方式および独立型太陽光発電システムの電池寿命判定方法 |
JPH118932A (ja) * | 1997-06-13 | 1999-01-12 | Dx Antenna Co Ltd | 電気二重層コンデンサによって駆動される装置 |
JP2001092391A (ja) * | 1999-09-22 | 2001-04-06 | Sanyo Electric Co Ltd | 太陽電池サインシステム |
JP2004208423A (ja) * | 2002-12-25 | 2004-07-22 | Sharp Corp | 太陽光発電システムおよびそれを用いた照明器具 |
JP2004311635A (ja) * | 2003-04-04 | 2004-11-04 | Olympus Corp | 駆動装置及びそれを用いた照明装置、並びに、その照明装置を用いた表示装置 |
JP2005129667A (ja) * | 2003-10-23 | 2005-05-19 | Atsushi Iga | 太陽電池・蓄電池組合せ装置の最適組合せ容量・電圧の決定方法 |
JP4409462B2 (ja) * | 2005-02-28 | 2010-02-03 | 星和電機株式会社 | ソーラーパネルの取付構造 |
JP2006324534A (ja) * | 2005-05-20 | 2006-11-30 | Seiko Instruments Inc | 発光ダイオード駆動回路 |
-
2007
- 2007-05-08 JP JP2007123350A patent/JP5233042B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2008282855A (ja) | 2008-11-20 |
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