This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
使用输入电压12V，输出电压5V，使用电子负载测试时，当电流超过4.1A时，输出电压直接跌落到0.3V，像是电流保护了。改变Trip脚的电阻，问题也没有解决，请大侠帮忙看看。附原理图：
