I have a project that uses a 13.8vdc 3A transformer PSU, I have a 2200uf capacitor after the PSU to hold a charge as my circuit uses a quick burst and this works ok, however I have now needed to uprate the power supply to 19vdc and have used a laptop SMPS, now the cap doesn't seem to hold the charge any more as when the quick burst occurs the power led (on the output side after the cap) dims where it never used to.
Is there an issue using caps with SMPS?
Searching the forums doesn't yield much help.
Also I have a 0.1nf cap across the 2200uf as well if that makes a difference (for decoupling etc).
TIA!
Is there an issue using caps with SMPS?
Searching the forums doesn't yield much help.
Also I have a 0.1nf cap across the 2200uf as well if that makes a difference (for decoupling etc).
TIA!