Patent ID: 9406431
Filing Date: 2016-08-02
CPC Classification: B60L,H01F,H02M

Claim Text:
1. A transformer comprising: an iron core having a plurality of legs arranged at a distance from each other; a plurality of high-voltage side coils each wound around one of said plurality of legs, and receiving common single-phase AC power; and a plurality of low-voltage side coils provided in correspondence with said high-voltage side coils, magnetically coupled to corresponding said high-voltage side coils, and each wound around one of said plurality of legs, said high-voltage side coils and corresponding said low-voltage side coils constituting a plurality of coil groups, a first coil group of said plurality of coil groups including one of said high-voltage side coils and one of said low-voltage side coils corresponding to the one of said high-voltage side coils, each wound around a first leg of said plurality of legs, and one of said high-voltage side coils and one of said low-voltage side coils corresponding to the one of said high-voltage side coils, each wound around a second leg adjacent to said first leg of said plurality of legs, and a second coil group of said plurality of coil groups including one of said high-voltage side coils and one of said low-voltage side coils corresponding to the one of said high-voltage side coils, each wound around said first leg, and one of said high-voltage side coils and one of said low-voltage side coils corresponding to the one of said high-voltage side coils, each wound around said second leg, in said first coil group, the one of said high-voltage side coils wound around said first leg and the one of said high-voltage side coils wound around said second leg being located adjacent to each other, and the one of said low-voltage side coils wound around said first leg and the one of said low-voltage side coils wound around said second leg being located adjacent to each other, in said second coil group, the one of said high-voltage side coils wound around said first leg and the one of said high-voltage side coils wound around said second leg being located adjacent to each other, and the one of said low-voltage side coils wound around said first leg and the one of said low-voltage side coils wound around said second leg being located adjacent to each other, in said first coil group, the one of said low-voltage side coils wound around said first leg and the one of said low-voltage side coils wound around said second leg each being coupled to an identical load, and in said second coil group, the one of said low-voltage side coils wound around said first leg and the one of said low-voltage side coils wound around said second leg each being coupled to an identical load different from said load to which said first coil group is coupled.