A high power LED driver with Class D ZVS series resonant converter
作者： Pakpoom Chansri , Nongnuch Noicharoen , Kritsada Phetphoi
DOI: 10.1109/INECCE.2011.5953925
关键词: Buck–boost converter 、 Forward converter 、 Transformer 、 Buck converter 、 Electrical engineering 、 Boost converter 、 Electronic engineering 、 Flyback converter 、 Physics 、 Ćuk converter 、 Voltage
摘要: This paper presents a design and construction of LED driver circuit for specific type high power with Class-D zero-voltage-switching (ZVS) series-resonant converter. In the proposed design, application consists 50 W, kHz switching converter, designed to drive 1750 lm white-light, solid-state lamp. The efficiency resonant is considerably higher compared that conventional resistive drivers. If DC output voltage low, converter will be dominated by rectifier. A prototype implemented shows maximum 90% in frequency transformer isolated ac-to-dc series ac line 220 V rms .
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