Inverter transformer and discharge tube drive circuit using the same
AssigneeSumida Corporation
InventorTadayuki Fushimi
Life of this patent
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Abstract
An inverter transformer to which coils for a balance transformer are integrally assembled. The inverter transformer is employed in a drive circuit for evenly driving a plurality of discharge tubes, and includes a primary coil and a secondary coil. The present invention proposes the inverter transformer which performs reduction in the number of components and in the size thereof by providing a through-hole a portion of a magnetic core section made from magnetic material configuring the inverter transformer, and by providing coils for a balance transformer through the through-hole.
Claims12
An inverter transformer having a core section made of magnetic material, and primary coils and secondary coils provided on said core section, comprising:
- a through-hole provided on the core section;
- at least two coils which are different from the primary and secondary coils;
- the at least two coils wound through the through-hole;
- wherein the through-hole is positioned such that magnetic flux generated by the at least two coils does not interfere with magnetic flux generated by primary and secondary coils.
An inverter transformer assembly, comprising:
- a core section configured with magnetic material for magnetically coupling primary coils and secondary coils forming an inverter transformer;
- a through-hole formed at an end portion of the core section;
- a primary coil and secondary coils for a balance transformer which are different from the primary and secondary coils of the inverter transformer and are wound through the through-hole;
- wherein magnetic flux generated by the inverter transformer and magnetic flux generated by the balance transformer do not interfere with each other.
Dependencies are inferred from the claim text.