20 Jun
2025
20 Jun
'25
11:53 a.m.
On Fri, 20 Jun 2025 at 14:45, Scott Allen <mlxxxp@gmail.com> wrote:
For power supplies, the majority of failures will be the result of electrolytic capacitors drying out or leaking.
Partial failure of an electrolytic capacitor typically results in a loss of capacitance. If it's a filter capacitor this can cause the supply to become overly electrically "noisy". The AC voltage "noise" on the output will swing higher than it should. This can cause seemingly random crashes due to a voltage dipping below what a component can tolerate, even though the supply seems to be functioning normally overall. -- Scott