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tps5450接负载电压输出不稳定!!!【求救】

Other Parts Discussed in Thread: TPS5450

我用tps5450做了一个24v转12v的电路给无刷电机的两个电调供电,但是每次一接上电调,电调会先响,表示启动成功,然后电压突然下降又导致电调重新启动,所以电调一直不断滴滴的重启……

pcb图:

原理图: