LM3410原电路设计:
LM3410更改电路设计:
更改设计R902/R911=10K/150K,FB端恒压源输入,测试波形图如下:
未加改电路(圈内)电感开关波形:
更改电路后,加恒压源电压1.35V,波形如下:
测量结果显示通过灯珠电流大小会按设计数值改变。
请问1该芯片能否通过基准来调节电流大小?这样电路是否存在隐患?
2若无问题,需测量哪些数据判断?
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