نام فایل: A Magnetic-Less DC–DC Converter for Dual-Voltage
ارسال کننده: Reza_Fallah
فایل ارسال شده: يكشنبه ۲۲ فروردين ۸۹ - ۱۸:۰۷
بخش فایل: برق و الکترونیک
نویسنده: Fang Zheng Peng, Senior Member, IEEE, Fan Zhang, and Zhaoming Qian, Senior Member, IEEE
Abstract—The automotive industry is moving toward 42 V to meet more electrical needs. Several dual-voltage (42 and 14 V) architectures have been proposed for the transition and accommodation of 14-V loads. A dc–dc converter that connects the 42 and 14 V is one key device in any dual-voltage architecture. This paper presents a compact, efficient, magnetic-less bidirectional dc–dc converter for dual-voltage (42/14 V) automotive systems. The dc–dc converter is based on the generalized multilevel converter topology having the ability to balance battery voltages, emit zero or low electromagnetic interference, and have low cost by using low-voltage MOSFETs. The main circuit of the dc–dc converter is analyzed and its control scheme is presented in the paper. A self-powered gate drive circuit is developed for the dc–dc converter to reduce costs, signal connections, and circuit complexity. A prototype has been built and experimental results are presented.
Index Terms—DC–DC converter, dual-voltage automotive system, multilevel converter, 42-V automotive system.
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