Title :
Predicting inductance roll-off with dc excitations
Author :
Pollock, Jennifer D. ; Lundquist, Weyman ; Sullivan, Charles R.
Author_Institution :
Thayer Sch. of Eng., Dartmouth Coll., Hanover, NH, USA
Abstract :
Predicting variations in inductance of an inductor under different dc bias current conditions is investigated for several different magnetic core materials. A method is presented that allows this constraint to be incorporated into the optimization of an inductor for power conversion applications. Theoretical predictions of an inductor´s saturation characteristics are compared to the measured performance. The method can be based on characteristics from a magnetic material datasheet or on characteristics extracted from measurements.
Keywords :
inductance; inductors; magnetic cores; power conversion; DC bias current conditions; DC excitations; inductance roll-off prediction; inductor saturation characteristic prediction; magnetic core materials; magnetic material datasheet; power conversion; Inductance; Inductance measurement; Inductors; Magnetic cores; Materials; Permeability; Permeability measurement;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2011 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4577-0542-7
DOI :
10.1109/ECCE.2011.6064051
