Fancy Pants Homes on MSN

LED bulbs on old dimmer switches: Why they buzz or flicker and how to fix it

You swap a warm old incandescent for a shiny new LED, turn the dimmer down for dinner, and the room starts to hum or pulse.
EDN

Power Tips #157: Reducing conducted EMI in 48V automotive USB Type-C EPR designs

This tutorial examines conducted EMI behavior using an Extended Power Range (EPR) (≥100W) USB Power Delivery (PD) reference ...