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UCC3895开机电流过大问题

Other Parts Discussed in Thread: UCC3895

如题,

UCC3895开机瞬间变压器原边电流是稳态时好几倍,无论是带载开机还是空载开机,瞬间冲击电流很大。稳态时波形很好,就是开机冲击电流特别大,感觉时序控制没有很好处理这个问题。请问有何措施可以改进此问题?

测试手段:用电流探头,勾测变压器原边电流,全桥移相拓扑,稳态工作很好。