CN2924996Y - 一种低成本高性能led照明电路 - Google Patents

一种低成本高性能led照明电路 Download PDF

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Publication number
CN2924996Y
CN2924996Y CN200520136423.2U CN200520136423U CN2924996Y CN 2924996 Y CN2924996 Y CN 2924996Y CN 200520136423 U CN200520136423 U CN 200520136423U CN 2924996 Y CN2924996 Y CN 2924996Y
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circuit
low
led lighting
cost
led
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曾祥云
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Abstract

本实用新型所述的一种低成本高性能LED照明电路，以低成本的方式解决对LED照明的供电问题。其电路包括：电容限流电路；整流电路；不必高耐压元件的稳流电路；便于维护的LED指示电路。稳流电路，其独特的接法使三极管及接于三极管基极的电容可以采用低压元件，并有很宽的自适用能力而免调试。本实用新型的有益效果是，与传统供电电路相比，电路简单、功耗低，无需调试，具有元件成本和生产成本均较低的优点，是一种廉价高性能的LED照明供电电路。

Description

一种低成本高性能LED照明电路
所属技术领域
本实用新型涉及一种专用的LED照明电路。
背景技术
高亮度白光LED照明具有发光效果高、寿命长、绿色环保等优点，并随着技术的成熟，LED成本将越来越低，LED照明将取代目前的白炽灯、日光灯照明。目前，LED发光采用恒流供电，对各元件的耐压要求较高，成本较高，恒流电路的调节也会使生产成本提高。
发明内容
本实用新型的目的是提供一种低成本高性能LED照明电路，以低成本的方式解决对LED照明的供电问题。其电路包括：电容限流电路；整流电路；不必高耐压元件的有源稳流电路；便于维护的LED指示电路。
本实用新型解决其技术问题所采用的技术方案是：用电容C1进行限流，R1为并联于C1两端的放电电阻，与整流电路构成串联电路。C2为接于整流输出端的储能滤波电解电容。整流输出直流电源经稳流电路加到LED组。稳流电路由T、C3、R2、R3、R4等组成，请参阅图1。其独特的接法使C3的耐压要求极低，调整R4的大小可使而T的耐压在低至40V时电路也能安全可靠地工作；串联的LED单元构成LED组，并联于LED单元两端的电阻构成便于维护的LED单元指示电路，可以在对应LED单元断路时，其它良好的LED单元微亮，从而更换受损的LED单元或将其短路进行应急修理。
本实用新型的有益效果是：由于不是恒流电路，因此更简单、成本更低。对于LED照明，本实用新型的稳流电路能达到与恒流电路相同的效果，并减少了电路功耗，效率更高。整个电路免调试，可降低生产成本低。
附图说明
图1是采用桥式整流的电路原理图。
图2是采用倍压整流的电路原理图。
具体实施方式
实施例：一种低成本高性能LED照明电路，并联有电阻R1的交流电容C1与由四个二极管组成的桥式整流电路串联后接入交流电源，整流输出端接有储能滤波电解电容C2，输出直流电源经稳流电路后加到LED组，点燃LED灯，如图1所示。

Claims (4)

1.一种低成本高性能LED照明电路，其特征是：并联有电阻R1的交流电容C1与整流电路串联后接入交流电源，稳流电路与LED组串联后接于整流电路的直流输出端。
2.根据权利要求1所述的一种低成本高性能LED照明电路，其特征是：所述的整流电路的直流输出端并联有一个电解电容C2。
3.根据权利要求1所述的一种低成本高性能LED照明电路，其特征是：稳流电路由三极管T、电解电容C3和电阻R2-R4组成，有A、B两端，三极管T的集电极连接A端，T的基极与A、B端之间分别有电阻R2和电解电容C3，T的发射极与A、B两端之间分别有电阻R4和R3。
4.根据权利要求1所述的一种低成本高性能LED照明电路，其特征是：所述的LED组是由LED单元串联组成，在每个LED单元上均并联有一个电阻。
CN200520136423.2U 2005-11-13 2005-11-13 一种低成本高性能led照明电路 Expired - Fee Related CN2924996Y (zh)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368881A (zh) * 2011-07-06 2012-03-07 晋宝电气（浙江）有限公司 运用于led灯的恒流驱动系统
CN102510615A (zh) * 2011-10-25 2012-06-20 杭州鸿德照明科技有限公司 倍压整流高压供电的串联led恒流驱动电路
US8358085B2 (en) 2009-01-13 2013-01-22 Terralux, Inc. Method and device for remote sensing and control of LED lights
US9192011B2 (en) 2011-12-16 2015-11-17 Terralux, Inc. Systems and methods of applying bleed circuits in LED lamps
US9265119B2 (en) 2013-06-17 2016-02-16 Terralux, Inc. Systems and methods for providing thermal fold-back to LED lights
US9326346B2 (en) 2009-01-13 2016-04-26 Terralux, Inc. Method and device for remote sensing and control of LED lights
US9342058B2 (en) 2010-09-16 2016-05-17 Terralux, Inc. Communication with lighting units over a power bus
US9596738B2 (en) 2010-09-16 2017-03-14 Terralux, Inc. Communication with lighting units over a power bus
US9668306B2 (en) 2009-11-17 2017-05-30 Terralux, Inc. LED thermal management

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9326346B2 (en) 2009-01-13 2016-04-26 Terralux, Inc. Method and device for remote sensing and control of LED lights
US8358085B2 (en) 2009-01-13 2013-01-22 Terralux, Inc. Method and device for remote sensing and control of LED lights
US8686666B2 (en) 2009-01-13 2014-04-01 Terralux, Inc. Method and device for remote sensing and control of LED lights
US9161415B2 (en) 2009-01-13 2015-10-13 Terralux, Inc. Method and device for remote sensing and control of LED lights
US9560711B2 (en) 2009-01-13 2017-01-31 Terralux, Inc. Method and device for remote sensing and control of LED lights
US10485062B2 (en) 2009-11-17 2019-11-19 Ledvance Llc LED power-supply detection and control
US9668306B2 (en) 2009-11-17 2017-05-30 Terralux, Inc. LED thermal management
US9342058B2 (en) 2010-09-16 2016-05-17 Terralux, Inc. Communication with lighting units over a power bus
US9596738B2 (en) 2010-09-16 2017-03-14 Terralux, Inc. Communication with lighting units over a power bus
CN102368881A (zh) * 2011-07-06 2012-03-07 晋宝电气（浙江）有限公司 运用于led灯的恒流驱动系统
CN102510615B (zh) * 2011-10-25 2014-04-02 杭州鸿德照明科技有限公司 倍压整流高压供电的串联led恒流驱动电路
CN102510615A (zh) * 2011-10-25 2012-06-20 杭州鸿德照明科技有限公司 倍压整流高压供电的串联led恒流驱动电路
US9192011B2 (en) 2011-12-16 2015-11-17 Terralux, Inc. Systems and methods of applying bleed circuits in LED lamps
US9265119B2 (en) 2013-06-17 2016-02-16 Terralux, Inc. Systems and methods for providing thermal fold-back to LED lights

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Address after: Dayu County, Dayu County, Jiangxi Province, Central Primary School, zip code: 341506

Patentee after: Zeng Xiangyun

Address before: Central Primary School, Fuyong street, Shenzhen, Guangdong, Baoan District 518103, China

Patentee before: Zeng Xiangyun

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20070718

Termination date: 20121113