12-01-2010 08:32 AM
Hey guys,
Desigining a small power supply, variable with an lm 317t. I haven't done this since high school
so I was hoping someone could just look over the circuit for me? It seems to work I just
want to make sure I didn't miss anything or if there are any improvements I can make.
Thanks!
12-02-2010 07:35 AM
I would re-arrange the AC input as follows:
AC Hot -> fuse -> Switch -> transformer in -> transformer out -> AC Neutral.
For simulation, maybe change the AC frequency to 60 Hz and the amplitude to 162.6 Vpk. This will give you 115 V RMS (which I assume you are actually looking for.
You may want to also re-evaluate your LED current limit resistor based on the changes above.