Technology Matrix Of Inductors

	Classic EI, EE, C foil inductors	Toroidal round wire inductor	Flat wire toroidal inductor
Material use efficiency	Poor	Good	Excellent
Magnetic field homogeneity	Poor	Excellent	Excellent
Manufacturing Process	Hard	Easy	Easy
Parasitic capacitance	High	Low	Very low
Insulation reliability	Poor	High	Very high
Cooling efficiency	Poor	High	High
High Power coil losses >100kVA	Good	Medium	Poor
DCR high power >100kVA	Excellent	Good	Poor
Filling factor	Good	Good	Medium

Ressources