用于LED应用的新型无电容降压DC-DC变换器

IF 1.3 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Active and Passive Electronic Components Pub Date : 2017-01-01 DOI:10.1155/2017/2365848

M. Al-Absi, Zainulabideen J. Khalifa, A. Hussein

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引用次数: 8

摘要

本文提出了一种新的无电容DC-DC变换器，用于发光二极管(LED)的驱动。本设计是基于利用LED的内部电容来代替平滑电容。LED照明系统通常有许多LED，以获得更好的照明，可以达到数十个LED。这样的配置可以用来扩大总内部电容，从而最小化输出纹波。此外，选择开关频率使输出端出现最小纹波。实验验证了所提设计的功能，驱动器在满载时的效率为85%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A New Capacitor-Less Buck DC-DC Converter for LED Applications

In this paper, a new capacitor-less DC-DC converter is proposed to be used as a light emitting diode (LED) driver. The design is based on the utilization of the internal capacitance of the LED to replace the smoothing capacitor. LED lighting systems usually have many LEDs for better illumination that can reach multiple tens of LEDs. Such configuration can be utilized to enlarge the total internal capacitance and hence minimize the output ripple. Also, the switching frequency is selected such that a minimum ripple appears at the output. The functionality of the proposed design is confirmed experimentally and the efficiency of the driver is 85% at full load.

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来源期刊

Active and Passive Electronic Components ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

13 weeks

期刊介绍： Active and Passive Electronic Components is an international journal devoted to the science and technology of all types of electronic components. The journal publishes experimental and theoretical papers on topics such as transistors, hybrid circuits, integrated circuits, MicroElectroMechanical Systems (MEMS), sensors, high frequency devices and circuits, power devices and circuits, non-volatile memory technologies such as ferroelectric and phase transition memories, and nano electronics devices and circuits.