Type of electrolytic capacitors for switch mode power supply output

Thread Starter

Wasoofa82

Joined Jan 24, 2021
41
Hello I am rebuilding the power supply on my Tektronix tds460a can I use just general purpose electrolytics for the output. I already. Do I need special impedance or esr characteristics.
 

crutschow

Joined Mar 14, 2008
27,171
As Eric noted, a switch-mode power supply generally requires low ESR electrolytics designed for switching power supplies to handle the high frequency ripple currents such supplies generate.
General purpose electrolytics can overheat and fail in such applications.
 
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