Title :
Planar inductor for very small DC-DC convertors
Author :
Sato, T. ; Hasegawa, M. ; Mizoguchi, T. ; Sahashi, M.
Author_Institution :
Toshiba Corp., Kawasaki, Japan
Abstract :
The authors describe the development of a planar inductor and its application to DC-DC converters. The planar inductor fabricated had a small size (11×11×0.8 mm), 33 μH inductance, and a maximum quality factor of 14. The very small DC-DC converter, using the planar inductor as an energy storage element. had a 250 kHz switching frequency, a 5 V 2 W typical output, and a power/volume ratio of up to 1.7 W/cm3
Keywords :
inductive energy storage; power convertors; 2 W; 250 kHz; 5 V; DC-DC convertors; energy storage element; output; planar inductor; power/volume ratio; quality factor; switching frequency; Amorphous magnetic materials; Amorphous materials; Coils; DC-DC power converters; Inductors; Magnetic films; Magnetic flux; Magnetic separation; Soft magnetic materials; Spirals;
Conference_Titel :
Telecommunications Energy Conference, 1991. INTELEC '91., 13th International
Conference_Location :
Kyoto
Print_ISBN :
0-87942-670-5
DOI :
10.1109/INTLEC.1991.172472
