测试的电源是淘宝买的模块:LM2596S-ADJ DC-DC可调降压模块 电源模块 IN3-40V OUT1.5-35V/3A
Test Condition: 输入24V(来自明纬开关电源LRS-100-24), LM2596-ADJ输出调节到15V,空载
纹波测试结果:Vpp=62.5mV,如下图
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测试的电源是淘宝买的模块:LM2596S-ADJ DC-DC可调降压模块 电源模块 IN3-40V OUT1.5-35V/3A
Test Condition: 输入24V(来自明纬开关电源LRS-100-24), LM2596-ADJ输出调节到15V,空载
纹波测试结果:Vpp=62.5mV,如下图
Hi
找一些确认ESR是40~50mohm的220~330uF 电容,在测试一下纹波看看?
输入还好,也建议选择一些ESR较低的电容。