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Marvell 88EM8183 10W反激TRIAC调光LED驱动方案

关键词:电源管理 LED驱动器 AC/DC转换器

时间:2012-05-17 10:08:38       作者:Marvell       来源:88EM8183

Marvell 公司的88EM8183是深调单级AC/DC LED驱动器,采用混合信号架构和信号处理技术,具有业界最高的调光范围,提供全范围调光和可吊光到1%.,效率高达90%,功率因速大于0.95,THD小于20%,同类产品中元件数最少,目标应用在A19,GU-10,PAR和BR灯,以及LED模块,聚光灯等.本文介绍了88EM8183优势,典型应用电路以及220VAC单级反激(A19)TRIAC调光LED驱动器开发板主要特性和电路图.

The Marvell 88EM8183 deep dimming single stage AC/DC LED driver integrated circuit (IC) is designed for offline dimmable LED lighting applications. Through Marvell’s innovative mixed-signal architecture and signal processing technology, 88EM8183 delivers full range dimming with programmable deep dimming down to 1% and the highest compatibility with all types of phase-cut dimmers including leading-edge (TRIAC), trailing-edge and special (smart) dimmers worldwide, It also significantly reduces external components hence needs less board space than other dimmable LED drivers on the market allowing lighting OEMs and ODMs to bring LED lighting to most of lamp and fixture form factors.

88EM8183 deploys the Quasi Resonant Control (QRC) and valley switching methods with Power Factor Correction (PFC) delivering up to 90 percent efficiency, power factor above 0.95 and lower than 20 percent total harmonics distortion, enabling lighting OEMs and ODMs to easily ..

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