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Hi
MOS不会发出声音吧,确认一下是否是变压器,以及芯片在动作的过程中是否合理?
没有接变压器,但也有可能是前面一个开关稳压部分的电感响(栅极驱动的电源输入是开关稳压出来的12V).现在现象疑似高侧和低侧MOS在某一时刻直通了,但是程序给的是互补的PWM,也尝试加大了死区,并没有效果,使用之前的栅极驱动IRS21867测试时一切正常