LAMINATED INDUCTOR

PURPOSE:To provide a laminated inductor having an increased conductor length while keeping a reduced size for obtaining a larger inductance value by forming a pair of spiral coils from a plurality of ferrite sheets having a plurality of through holes and connecting these spiral coils in series throu...

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Bibliographic Details
Main Authors TAMADA MINORU, KOBAYASHI TAKASHI
Format Patent
LanguageEnglish
Published 01.06.1990
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:PURPOSE:To provide a laminated inductor having an increased conductor length while keeping a reduced size for obtaining a larger inductance value by forming a pair of spiral coils from a plurality of ferrite sheets having a plurality of through holes and connecting these spiral coils in series through the through- holes in the ferrite sheets interposed between the spiral coils. CONSTITUTION:A laminated inductor comprises coil ferrite sheets A, C and E having a plurality of through holes, 11 14, 21-24, and 25-28 and conductor patterns 16-20 and 25-28 and connecting ferrite sheets B and D each having one through-hole 31 and conductors patterns 32, 33. On the top and and bottom of the laminate consisting of the sheets A, C, E and B, D, there are superposed ferrite sheets for dummy F. A pair of spiral coils are formed of the conductor patterns on the sheets A, C, E and B, D connected through the through-holes. These spiral coils are connected in series through the through-holes.
Bibliography:Application Number: JP19880296536