US 8,310,327 B2 · Low-profile transformer

Abstract

The present invention provides an improved transformer (20), which broadly includes: a substrate (21) having first and second surfaces (22, 23); a first board (24) mounted on the substrate first surface; a second board (25) mounted on the substrate second surface; the boards being identical to one another and being mounted on the respective proximate substrate surfaces as mirror images of one another; each of the boards having a plurality of dielectric layers with electrically-conductive sheet windings (35, 36, 37, 38) embedded therein; and an assembled core (26, 28) operatively arranged to provide a path for magnetic flux attributable to a current in some of the windings. Third and fourth boards (71, 72) may be piggy-backed onto the first and second boards, respectively, to selectively vary the properties of the transformer.

Claims25

Dependent claims

A transformer, comprising:

a substrate having first and second surfaces;
a first board mounted on said substrate first surface;
a second board mounted on said substrate second surface;
said first and second boards being identical to one another and being mounted on the respective proximate substrate surfaces as mirror images of one another;
each of said first and second boards having a plurality of dielectric layers with electrically-conductive sheet windings embedded therein;
said sheet windings being electrically connected;
a core operatively arranged to provide a path for magnetic flux attributable to a current in said windings;
and
wherein each of said first and second boards has at least three terminals on a surface thereof that are electrically connected to at least one winding within such board and that are operatively arranged to allow different voltages to be tapped off.

6 more elements

Dependencies are inferred from the claim text.

Low-profile transformer

Life of this patent

Low-profile transformer

Life of this patent

Abstract

Claims25