As long as there is no source of 2kHz to excite the resonant circuit, it shouldn't be a problem.Putting an inductor in series with a capacitor is not a good idea. This is a resonant circuit.
100μH in series with 68μF will resonate at 2kHz.
4" wires are a no-no.crutschow - I was using 4" leads of wire soldered to my PCB. I'm going to add a 0.1μF cap in series with the 68μF (with a short lead wire). I'll record the results. Thanks!
Yes, sorry about my post. I noticed all SMPS do the same thing.As long as there is no source of 2kHz to excite the resonant circuit, it shouldn't be a problem.
by Jake Hertz
by Aaron Carman
by Jake Hertz