Patent ID: 8830021

Claim:
An apparatus configured to process electrical power, comprising: a silicon carbide insulated gate bipolar transistor; and an electrical power filter configured to receive output from said silicon carbide insulated gate bipolar transistor, said electrical power filter comprising: an inductor, said inductor comprising: a winding and an inductor core, said inductor core comprising: a plurality of coated magnetic particles, each of a majority of said coated particles comprising: a first set of alternating substantially magnetic layers, wherein said magnetic layers comprise at least one alloy; and a second set of alternating substantially non-magnetic layers, said coated particles about evenly distributed in at least a portion of said inductor core, said winding comprising at least two electrically insulated conductors wired electrically in parallel, said at least two conductors circumferentially wound about at least a portion of said inductor core, said inductor configured to carry a current comprising a frequency component of at least one thousand Hertz, and said inductor configured to carry a magnetic field of at least one of: between 3000 and 9,000 Gauss at 300 Oersteds; between 4000 and 12,000 Gauss at 400 Oersteds; and between 5000 and 14,000 Gauss at 500 Oersteds.