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LMG3411R070: 逆变母线电压上到300V之后器件工作不正常

Part Number: LMG3411R070

逆变母线电压上升到300V之后上管就处于一直开通的状态,下管处于一直关闭的状态,控制信号输入正常,这是为什么,是我Layout的问题吗