Category Archives: What’s on TV?

What’s on TV? “Basics of Ferrite Beads”

Basics of Ferrite Beads for Filters, EMI Suppression, Parasitic oscillation suppression / Tutorial

This video discusses the basics of ferrite beads, and their uses for basic filtering applications. It discusses and demonstrates how ferrites act as resistors at high frequencies, and how this is used for EMI/RFI Suppression, improved power supply filtering, parasitic oscillation suppression, and others. The affect of the frequency dependent resistive characteristic of the ferrite beads is demonstrated by showing its effect on a swept RF signal, its effect on the rise/fall time of a digital signal, and its effectiveness of eliminating parasitic oscillation.