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UCC21520: 驱动半桥电源短路问题

Part Number: UCC21520

 Lamp接插件接入万用表电流档时,+H无输出,初步估计时+H短路问题,参考的标准设计,不知为何会错误,Q2和Q3的G电压分别为12V和11V左右,已经开启