Mosaic
Well-Known Member
Hi:
I use a pc PSU for my hobby work and it produces some 50 and 100 nS spikes enough to cause probs on my logic analyzer, when debugging a circuit supplied by the psu.
A battery supply is clean.
Since i usually draw an amp or less for PCB circuits I am looking for advice on making a suitable filter to handle these short spikes.
I guess the very short 50 to 100nS transients are getting past the standard 1 uf & .1uf Decoupling I have on the pcb.
Perhaps an multistage LC may be in order?
I use a pc PSU for my hobby work and it produces some 50 and 100 nS spikes enough to cause probs on my logic analyzer, when debugging a circuit supplied by the psu.
A battery supply is clean.
Since i usually draw an amp or less for PCB circuits I am looking for advice on making a suitable filter to handle these short spikes.
I guess the very short 50 to 100nS transients are getting past the standard 1 uf & .1uf Decoupling I have on the pcb.
Perhaps an multistage LC may be in order?