Annular air gap ferrite core

The invention discloses an annular air gap ferrite core. The annular air gap ferrite core comprises an annular magnetic core body and an air gap, wherein the air gap of a proper length is formed in the annular magnetic core body to meet the requirements of a transformer and an inductor, and the leng...

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Bibliographic Details
Main Authors HU FENG, WAN JINGLONG
Format Patent
LanguageEnglish
Published 22.07.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:The invention discloses an annular air gap ferrite core. The annular air gap ferrite core comprises an annular magnetic core body and an air gap, wherein the air gap of a proper length is formed in the annular magnetic core body to meet the requirements of a transformer and an inductor, and the length of the air gap is worked out according to the initial permeability of the annular magnetic core body, the size of the annular magnetic core body and the target effective magnetic permeability. The annular air gap ferrite core resolves the problems that the saturation resistance to alternating and direct current of products in the same class is poor, the products can not be applied to the inductor, the section area of a magnetic circuit is not consistent, the magnetic flux density is not consistent, a redundant magnetic core part exists, and loss is high.
Bibliography:Application Number: CN20151235135