Inverter transformer
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United States of America Patent
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Sep 22, 1998
Grant Date -
N/A
app pub date -
Dec 12, 1996
filing date -
Dec 15, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
In an inverter transformer comprising a primary winding and secondary winding which are wound on a first and a second spool respectively and disposed in juxtaposing relationship.with each other with the axes of the first and second spools being substantially parallel to each other, and a pair of cores which are disposed in abutting relationship to each other so as to define a closed magnetic path, the primary and secondary windings being electromagnetically coupled to each other through the pair of cores, at least one of said cores being provided with a protuberance which is disposed in opposing relationship to the other core, with a small distance maintained therebetween, the protuberance being interposed between the primary winding and the secondary winding, the arrangement is made such that secondary-side minimum sectional area of that portion of the cores through which magnetic flux is permitted to pass, is given substantially by S.sub.1 K, where S.sub.1 is primary-side minimum sectional area of that portion of the cores through which magnetic flux is permitted to pass, and K is the electromagnetic coupling coefficient between the primary winding and the secondary winding.
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