TY - CHAP
T1 - Experimental investigation of iron-based amorphous metal and 6.5% silicon steel for high-current inductors in low-medium frequency DC-DC converters
AU - Lyons, Brendan J.
AU - Hayes, John G.
AU - Egan, Michael G.
PY - 2007
Y1 - 2007
N2 - Iron-based amorphous metal and 6.5% silicon steel are competitive materials for high-power-density inductors in the low-to-medium-frequency range, and lead to a low cost and low weight/volume solution for high-power dc-dc converters. In this paper, the practical effects of frequency, ripple, air-gap fringing, and thermal configuration are investigated for these materials. Inductor size can increase in both these laminated materials due to increased air-gap fringing core and copper losses. Distributing the air gap is demonstrated to reduce the inductor losses and size. It is also demonstrated that a thermal configuration ensuring heat flow in the direction of the material lamination results in optimum cooling. A 2.5 kW converter is built to verify the optimum material selection and thermal configuration over the ranges of frequency and ripple. Experimental, analytical and simulation results are presented.
AB - Iron-based amorphous metal and 6.5% silicon steel are competitive materials for high-power-density inductors in the low-to-medium-frequency range, and lead to a low cost and low weight/volume solution for high-power dc-dc converters. In this paper, the practical effects of frequency, ripple, air-gap fringing, and thermal configuration are investigated for these materials. Inductor size can increase in both these laminated materials due to increased air-gap fringing core and copper losses. Distributing the air gap is demonstrated to reduce the inductor losses and size. It is also demonstrated that a thermal configuration ensuring heat flow in the direction of the material lamination results in optimum cooling. A 2.5 kW converter is built to verify the optimum material selection and thermal configuration over the ranges of frequency and ripple. Experimental, analytical and simulation results are presented.
UR - https://www.scopus.com/pages/publications/47849105707
U2 - 10.1109/IAS.2007.272
DO - 10.1109/IAS.2007.272
M3 - Chapter
AN - SCOPUS:47849105707
SN - 1424403642
SN - 9781424403646
T3 - Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
SP - 1781
EP - 1786
BT - Conference Record of the 2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS
T2 - 2007 IEEE Industry Applications Conference 42nd Annual Meeting, IAS
Y2 - 23 September 2007 through 27 September 2007
ER -
