Using Ferrite Beads for Ringing Control in Switching Converters
https://www.electronics-lab.com/using-ferrite-beads-ringing-control-switching-converters/
“Ringing” is a common term referring to the undesired oscillation that occurs when a power semiconductor switch turns on or off in the presence of parasitic inductance and capacitance. Energy stored in the parasitic junction capacitance of the switch is released during the switching transition and rings with parasitic inductance coming from the stray fields […]