半桥电路波形不对(见图),请各位高手帮忙分析分析,谢谢!

驱动变压器匝数:N1:N2:N3:N4=40:40:10:10 匝
                          50:50:13:13 匝


功率变压器匝数:N1:N2:N3=40:10:10匝
                           38:7:7匝
反正变压器是绕了好几个开关管的波形就是不对,示波器的每格为50V,频率30K

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