基于图腾极整流器的单级LED驱动器要求降低直流母线电压

IF 4.9 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Emerging and Selected Topics in Power Electronics Pub Date : 2025-03-10 DOI:10.1109/JESTPE.2025.3549675

Bruno Miguel Holler;Eloi Agostini;Claudinor Bitencourt Nascimento

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引用次数: 0

摘要

本文介绍了一种基于图腾极整流器的非隔离单级发光二极管（LED）驱动器，该驱动器要求降低直流母线电压。所提出的拓扑结构需要的元件数量少，效率高。电荷泵和谐振电容的概念被用来实现降低LED电流纹波，高功率因数和直流母线电压水平接近输入电压峰值。给出了两种样机的实验结果，输入电压分别为127和220 V-rms，输出电压分别为90和140 V，额定功率分别为45和70 W，并验证了所做的分析。在额定功率条件下，输入电压为127 V-rms时，直流母线电压为220 V，电压为220 V-rms时，直流母线电压为360 V，表明该电路能够保证降低直流母线电压水平。此外，两种原型的效率都高达95.2%，因此表明了所提出的LED驱动器在高效运行方面的潜力。

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Single-Stage LED Driver Based on the Totem-Pole Rectifier Requiring Reduced DC-Bus Voltage

A nonisolated single-stage light-emitting diode (LED) driver based on the totem-pole rectifier requiring reduced dc-bus voltage is introduced in this article. The proposed topology requires a low component count and exhibits high efficiency. Charge-pump and resonant capacitor concepts are used to achieve reduced LED current ripple, high-power factor, and dc-bus voltage levels close to the input voltage peak value. Experimental results of two built prototypes operating with input voltages of 127 and 220 V-rms, output voltage of 90 and 140 V, and rated power of 45 and 70 W, respectively, are presented and validate the analysis carried out. The measured dc-bus voltage at rated power condition is 220 V for an input voltage of 127 V-rms 360 V for 220 V-rms, demonstrating the capability of the proposed circuit to guarantee reduced dc-bus voltage levels. In addition, both prototypes exhibited efficiencies up to 95.2%, therefore indicating the potential of the proposed LED driver for high-efficiency operation.

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来源期刊

IEEE Journal of Emerging and Selected Topics in Power Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

12.50

自引率

9.10%

发文量

547

审稿时长

3 months

期刊介绍： The aim of the journal is to enable the power electronics community to address the emerging and selected topics in power electronics in an agile fashion. It is a forum where multidisciplinary and discriminating technologies and applications are discussed by and for both practitioners and researchers on timely topics in power electronics from components to systems.