This presentation, part of Würth Elektronik 2024 Design Day will discuss and demonstrate the impact of DC bias on the resistance, reactance, and impedance of SMT EMI suppression ferrites.
A vector network analyzer, custom-built test fixture, and DC power supply will be used to create a live demonstration of the effects of DC bias from 1 to 501 MHz to the EMI suppression capabilities of SMT ferrite inductors.