I am designing a PCB to handle relays, current measurement, and step down 120VAC to 5VDC. I was planning on using this power supply http://www.cui.com/product/resource/vsk-s10-series.pdf , but I have a few questions about it. Since it is regulated power, is it safe to connect the Arduino 5V directl…

Implementing 5V on-board transformer correctly

system June 11, 2013, 3:34pm 4

I see. Thanks for the explanation.

Common mode choke, 20mh