DC/DC CONVERTER
First Claim
1. A switching supply comprising:
- an inverter circuit which is connected to a primary coil group of a transformer; and
a rectification/smoothing circuit which is connected to a secondary coil group of the transformer, whereinthe transformer comprises a core having a first through section and a second through section, which is spatially separate from the first through section and constitutes a magnetic circuit together with the first through section,the first through section passes through the inside of at least one coil of the primary coil group and at least one coil of the secondary coil group,the second through section passes through the inside of the remaining coils of the primary and secondary coil groups, andthe coil group that follows one loop direction of the magnetic circuit comprises a first coil group which has a primary coil and a secondary coil that are magnetically coupled and, subsequently to the first coil group, a second coil group which has a primary coil and a secondary coil that are magnetically coupled.
1 Assignment
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Accused Products
Abstract
Primary and secondary coils are provided in the first through section and a coil group is also provided in the second through section. Hence, the surface area over which the coil group extends within a plane which is perpendicular to the through sections is greater than in the case where all of the coils are provided in a single through section. The surface area which is not covered by the magnetic body cores of the platelike members increases. In cases where the surface area of the members is large, the heat radiation characteristic is enhanced. Hence, the cooling efficiency of the transformer improves. In cases where there is a plurality of coil groups which are magnetically coupled to one another in particular, because it is difficult to move the heat produced in the plurality of coil groups through heat conduction, heat transfer, or heat radiation, a heat radiation structure of this kind is effective.
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Citations
4 Claims
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1. A switching supply comprising:
- an inverter circuit which is connected to a primary coil group of a transformer; and
a rectification/smoothing circuit which is connected to a secondary coil group of the transformer, whereinthe transformer comprises a core having a first through section and a second through section, which is spatially separate from the first through section and constitutes a magnetic circuit together with the first through section, the first through section passes through the inside of at least one coil of the primary coil group and at least one coil of the secondary coil group, the second through section passes through the inside of the remaining coils of the primary and secondary coil groups, and the coil group that follows one loop direction of the magnetic circuit comprises a first coil group which has a primary coil and a secondary coil that are magnetically coupled and, subsequently to the first coil group, a second coil group which has a primary coil and a secondary coil that are magnetically coupled. - View Dependent Claims (2, 3, 4)
- an inverter circuit which is connected to a primary coil group of a transformer; and
Specification