Patent ID: 7332992

Claim:
A transformer comprising: an iron core; and a winding wound around said iron core; wherein said iron core includes a column-shaped output side iron core part, a plurality of column-shaped input side iron core parts situated in a vicinity of said output side iron core part, and a connecting iron core part configured to connect both ends in a direction of length of said plurality of input side iron core parts to both ends in a direction of length of said output side iron core part, said winding includes a plurality of primary windings respectively wound around said plurality of input side iron core parts, a secondary winding wound around said output side iron core part, and generated magnetic fluxes generated in said input side iron core parts by said primary windings, respectively, independently pass through said output side iron core part via said connecting iron core part, whereby a total of a plurality of said generated magnetic fluxes intersect said secondary winding.