概述:美的电磁炉用sm7028电源,易坏无配件,用常见的viper12a代换多台正常,把viper12a5 6 7 8脚这4个脚直接短接飞线到sm7028的4脚,把viper12a的1和2脚短接连接sm7028的5 6 7 8脚(gnd),viper12a的4脚(vdd)脚直接接sm7028的2脚(vdd),viper12a的3脚(fb)接sm7028的1脚(fb)

sm7028引脚功能