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拓扑与电路 PFC整流 PWM控制 ★ 2.0

用于改造灯具应用的无电解电容有源输入电流整形器

Active Input Current Shaper Without an Electrolytic Capacitor for Retrofit Lamps Applications

语言:

中文摘要

固态照明技术的发展推动了高亮度LED(HB-LED)的广泛应用。为发挥其高效率与长寿命优势,驱动器的耐用性至关重要。本文提出一种无电解电容的有源输入电流整形方案,旨在提升LED驱动电源的可靠性与紧凑性,通过先进的拓扑设计优化输入电流波形,减少对易损电解电容的依赖。

English Abstract

The evolution of solid-state lighting technology has transformed traditional solutions in lighting. High-brightness light-emitting diodes (HB-LEDs) have become very attractive light sources due to their excellent characteristics, namely high efficiency, a long lifetime, and low maintenance. It is evident that HB-LED drivers must be durable and efficient in order to enjoy these advantages. Moreover...
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SunView 深度解读

该文献探讨的“无电解电容”技术对于提升电力电子设备的长期可靠性具有重要参考价值。虽然阳光电源的核心业务聚焦于光伏逆变器、储能系统及充电桩,而非LED驱动,但“去电解电容”技术在提升逆变器和PCS内部DC-Link电容寿命、降低系统维护成本方面具有通用性。建议研发团队关注该拓扑中采用的电流整形控制策略,探索其在小功率辅助电源或户用光伏逆变器控制板供电中的应用,以进一步提升产品在极端环境下的可靠性与寿命。