dymg:
年纪大了,搞错了.是buck+activeclamp+fullbridge(onecore).Total3cores,oneforbuckinductor,oneforisolationtransformer,oneforbiassupply.高压时buck降压,fullbridge50%duty.低压时bucktopswitch通,fullbridgeworksasisolateboost,dutychangetogetvoltageregulation.优化48V效率高.缺点是控制复杂,用digitalcontrol也是逼上梁山.Activeclamp是因为boost反向恢复电压太高,要嵌一下.PS:每天工作忙,也没啥东西可写.有些东西不能写,classified.