Title :
Ferrite substrates for high-frequency switching DC-to-DC converter applications
Author :
Kato, N. ; Hirano, S. ; Matsuura, H. ; Torii, M.
Author_Institution :
Fuji Electrochemical Co., Ltd., Shizuoka, Japan
fDate :
9/1/1985 12:00:00 AM
Abstract :
A hybrid IC of small capacity DC-to-DC converter was formed on a ferrite substrate which also serves as a core for inductors. The converter has characteristics of 80% in efficiency, 1.2 W/cm3in output power and a switching frequency of 500 kHz. To optimize both the magnetic property and mechanical strength of the substrate, a Ni-Cu-Zn ferrite was employed and LiO2and WO3were added to improve high mechanical strength.
Keywords :
DC-DC power conversion; Ferrite materials/devices; Power conversion, DC-DC; Buck converters; Capacitors; DC-DC power converters; Energy storage; Ferrites; Frequency; Inductors; Magnetic properties; Switching converters; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.1985.1064057
