我用LM3421做了一款降压恒流电路,输出电流随RLIM阻值,请问是什么原因。
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HI
恒流是用HSP/HSN来做的, RLIM是做电流限制。
你提到电流随Rlim值是说明情况,能具体说明下吗? 可以将电路图放上来看一下,有没有更换芯片?