基于PFC多电平整流器的LED驱动电路可靠性分析

2022 Second International Conference on Power, Control and Computing Technologies (ICPC2T) Pub Date : 2022-03-01 DOI:10.1109/ICPC2T53885.2022.9776846

Manish Kumar Barwar, L. Sahu, P. Bhatnagar

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引用次数: 0

摘要

LED需要LED驱动器才能工作，其性能取决于LED驱动器的输出。因此，具有无纹波电流输出、高效率和单位功率因数(UPF)整流的高性价比LED驱动器在照明领域受到高度重视。尽管led的传统整流技术既经济又直接，但它们会扭曲电源的功率因数，并在电网中引入谐波。在这方面，本文提出了一种自电压平衡无传感器多电平整流器(MLR)拓扑，用于驱动LED同时在所有工作条件下保持UPF。本文实现了一种纹波抵消(RC)系统，以防止由馈送到led的电流纹波引起的频闪效应。对带RC系统的MLR进行了完整的可靠性研究，并对构件变化及其对可靠性的影响进行了研究。

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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Reliability Analysis of PFC Multilevel Rectifier Based LED Driver Circuit

The LEDs require LED drivers to operate, and their performance depends on the output of the LED drivers. As a result, cost-effective LED drivers with ripple-free current output, high efficiency, and unity power factor (UPF) rectification are highly valued in the lighting sector. Even though the conventional rectification technologies for LEDs are economical and straight forward, they distort the power factor of the supply and introduce harmonics in the grid. In this regard, this article proposes a self-voltage balanced sensor-less multilevel rectifier (MLR) topology for driving the LED while maintaining UPF at all operating conditions. This article implements a ripple cancellation (RC) system to prevent the stroboscopic effect caused by current ripples fed to LEDs. A complete reliability study of the MLR with RC system has been carried out, as well as component variation and its impact on reliability.

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来源期刊

2022 Second International Conference on Power, Control and Computing Technologies (ICPC2T)

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