I have a 8W linear power supply that I wish to protect against mains- borne interference. The linear power supply is powering up a board containing a simple measuring circuit and some CMOS 4000 series gates which are switching at very, very low frequencies (fastest speed is
0.1Hz). The tracks are all 1mm wide and no longer than 5cm.Would simply fitting a filter like this Schaffner FN332Z-3/05 be adequate to protect against r.f. and transients on the mains?...
Would it make it worse!!!?
I realise that there are many ifs and buts within this question but I just wanted to get the ball rolling.