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UCC2897A: UCC2897A: noise太大影响正常工作

Part Number: UCC2897A

我们的项目正在使用UCC2897设计一款有源钳位正激变换器,输入36V-70V,输出12V,300W,选用ucc2897a作为控制芯片。在调试时遇到了以下问题:主开关管和辅助开关管在开通和关断时,GND上有严重的干扰。在功率提高时,CS和LINEOV引脚出发保护,使得变换器频繁处于重启状态。请问有什么方法能够较小GND的干扰?