Switching mode power transformer
AssigneeVogt Electronic AG
InventorAnton Schmeller
Life of this patent
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Abstract
A switching mode power transformer for operation as feedback converter has a core which is made in only one piece and which does not require any particular finishing operations. The core has a center core part with windings thereon and outer core parts which are chamfered on their mutually remote sides to form outer surfaces which converge towards each other.
Claims3
A switching mode power transformer having a core with a base part and core parts projecting from the base part parallel to each other with a spacing therebetween, and windings arranged on at least one bobbin slipped onto one of said projecting core parts characterized in that the projecting core parts (3) have spaced parallel faces therebetween throughout their length and are substantially extended past the windings (4) so that their free end sections (5) respectively define between them an air gap (6) clear of the windings, and said free end sections of said core parts on each side of said one core part are chamfered on their mutually remote sides to form outer surfaces converging towards each other, whereby there is a reduction of the external leakage magnetic field and saturation of the core material is avoided.
Dependencies are inferred from the claim text.