Transformerless Power Suppply

[sayzer]

Upon the discussion with Melanie, attached is the capacitor value table for the current (mA) that your circuit draws.

Table is quite simple to figure out.

Table is for 110V@60Hz and 220V@50Hz.

Example: If your circuit draws 12mA, and your power line is 110V 60Hz, then, you use 0.289uF (290nF) for C2 in the circuit that Melanie posted here.

Of course you will have to adjust D2 and VDR accordingly.

If this table is any help to anyone!


Regards