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Electrical Engineering
Erschienen in: Electrical Engineering 1/2021

09.07.2020 | Original Paper

A high-current 1.5-stage LED driver with current-mode BCM PFC and low-voltage film capacitors

verfasst von: Mohammad Javad Hassani, Hoda Ghoreishy, Ahmad Ale Ahmad

Erschienen in: Electrical Engineering | Ausgabe 1/2021

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Abstract

In this paper, current-mode boundary conduction mode (BCM) of a high-efficiency LED driver with high power factor, utilizing low-voltage film capacitors, is presented, and its theoretical design and considerations are discussed. The 1.5-stage driver consists of a forward-flyback and buck converter. Higher efficiency was reached using the reduced redundant power processing approach. Most of the processed energy is transferred to the output through flyback, while the rest removes the low harmonic ripple in the output current through the forward-buck path. An acceptable amount of odd harmonics is injected into the input current by using current-mode BCM control method, further reducing bus capacitance. To validate these principles, a laboratory prototype has been built and experimental results of a high-current 85 W (29.5 V/2.9 A) lamp with 50 Hz, 185–255 V power supply are provided. The results show that output current ripple is low, and the input current harmonics are within the standard regulations.
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Metadaten
Titel
A high-current 1.5-stage LED driver with current-mode BCM PFC and low-voltage film capacitors
verfasst von
Mohammad Javad Hassani
Hoda Ghoreishy
Ahmad Ale Ahmad
Publikationsdatum
09.07.2020
Verlag
Springer Berlin Heidelberg
Erschienen in
Electrical Engineering / Ausgabe 1/2021
Print ISSN: 0948-7921
Elektronische ISSN: 1432-0487
DOI
https://doi.org/10.1007/s00202-020-01060-0

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