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图中那个100U的电容反了,磁芯用的是EE55,初级用2.44mm直径双根并绕,各二圈,次级用1.2mm直径绕110圈.SG3526N在空载时波形正常,当接了负载后方波就变形了.我想请大哥们分析一下,问题出在哪里?当接600W负载时3205管子在20秒内就升至70度.散热片为100*100*3.