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新能源汽车车载充电机(OBC)全面解析:从原理到应用,一文学懂OBC技术
220Vac经过EMI滤波电路滤波,通过一次AC-DC转换器整流,将AC整流为DC,后经PFC功率因数校准电路进行升压,再送往开关和变压器变频升压,经过LLC过第二次整流滤波后输出高压直流给动力电池充电(第一次220Vac整流到310Vdc,电压不够,要升压转化两次) 1.主回路:主 ...
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