Dual line power transformer

Abstract

A high-power wideband transformer (40). The transformer (40) includes a first input terminal (42) connected in parallel to one or more conductor paths (50 and 52) and to a first output conductor (48). A second input terminal (44) is connected in parallel to the one or more conductor paths (50 and 52) and to a second output conductor (54). An inductive device (56, 60, 64, 58, 62, and 66) effects electrical coupling between the one or more conductor paths (50 and 52) and the first output conductor (48) and between the one or more conductor paths (50 and 52) and the second output conductor (54) sufficient to implement a desired transformer ratio from input of the transformer (40) to output of the transformer (40) via approximately colinear wires (56, 60, and 64). In a first illustrative embodiment, the co-linear wires (56, 60, and 64) are parallel wires placed sufficiently close to effect the electrical coupling. The transformer 40 effects a nine-to-one transformer ratio. The one or more conductor paths (50 and 52) include a first conductor path (52) that passes through a first ferrite core (62) and a second ferrite core (58) and include a second conductor path (50) that passes through a third ferrite core (66) and the first ferrite core (62). The first output conductor (48) passes through the third ferrite core (66) parallel to the second conductor path (50). The corresponding co-linear wires (56, 60, and 64) are the second conductor path (50) and the first output conductor (48). The second output conductor (54) passes through the second ferrite core (58) parallel to the first conductor path (52), and the corresponding co-linear wires (56, 60, 64) are the first output conductor (54) and the first conductor path (52). The first ferrite core (62) is disposed between the second ferrite core (58) and the third ferrite core (66) and is shorter than the second ferrite core (58) and the third ferrite core (66).