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首页> 外文期刊>Power Electronics, IEEE Transactions on >A Driving Technology for Retrofit LED Lamp for Fluorescent Lighting Fixtures With Electronic Ballasts
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A Driving Technology for Retrofit LED Lamp for Fluorescent Lighting Fixtures With Electronic Ballasts

机译：一种带电子镇流器的荧光灯装置的LED灯改装驱动技术

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摘要

A driving technique that can operate with electronic ballasts for fluorescent lamps to drive LEDs without requiring the replacing of any electronic ballast circuitry or modifying the existing infrastructure of a lighting network is presented. This technology provides an eco-friendly and immediate solution to turn a lighting system with fluorescent lamps into the one with LED lamps. The proposed technology is based on controlling the input impedance of an ac/dc converter, which is connected to the output of the ballast, and converting the high-frequency ac power from the ballast into dc power for the LEDs. With such adjustable input impedance, the active and reactive power drawn from the ballast can be controlled. The power supplying to the LED lamp, and thus its brightness, can be adjusted independently by an external means, such as wireless control. An experimental LED lamp prototype for retrofitting a 36-W T8 fluorescent lamp has been built. It is studied together with a fluorescent lamp and with both lamps ballasted by a commercial nondimmable electronic ballast for dual fluorescent lamps. The light output of the LED lamp can be varied from 100% to 51% of full brightness, while the light output of the fluorescent lamp remains unchanged. The input power to the ballast is reduced by 26% over the dimming operation of the LED lamp. A comprehensive study into the electrical performance of the ballast, operational characteristics of the two lamps, system efficiencies, and light outputs under different dimmed conditions is presented.
机译：提出了一种可以与用于荧光灯的电子镇流器一起操作的驱动技术来驱动LED，而无需更换任何电子镇流器电路或修改照明网络的现有基础结构。这项技术提供了一种生态友好的即时解决方案，可以将带有荧光灯的照明系统变成带有LED灯的照明系统。所提出的技术基于控制与镇流器输出相连的ac / dc转换器的输入阻抗，并将来自镇流器的高频交流电转换为LED的直流电。利用这种可调的输入阻抗，可以控制从镇流器汲取的有功和无功功率。可以通过诸如无线控制之类的外部手段来独立地调节向LED灯提供的电源，从而调节其亮度。已经建立了用于改装36瓦T8荧光灯的实验性LED灯原型。它与荧光灯一起使用，并且两个灯均由用于双荧光灯的商用不可调光电子镇流器镇流。 LED灯的光输出可以在全亮度的100％到51％之间变化，而荧光灯的光输出保持不变。通过LED灯的调光操作，镇流器的输入功率降低了26％。给出了对镇流器的电气性能，两个灯的工作特性，系统效率以及在不同的暗淡条件下的光输出的综合研究。

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