Compact trans core

Claim 1

A transformer comprising: a core including; a substantially trapezoidal central core leg having a base with opposite edges and first and second planar side members, each said side member intersecting a different one of said edges of said base at an angle less than 90°; a first core side leg having a first planar surface closely spaced to and in parallel with said first planar side member; and a second core side leg having a second planar surface closely spaced to and in parallel with said second planar side member; and a bobbin member receiving a core winding, said bobbin member having a first end, a second end, and a trapezoidal cross-section and including a trapezoidal central aperture extending through the length of said bobbin member from said first end to said second end, said central trapezoidal aperture receiving said trapezoidal central core leg, said bobbin member separating said first and second planar side members of said central core leg from said first planar surface of said first core side leg and said second planar surface of said second core side leg said bobbin member further including a first enlarged terminal block member at said first end and a second enlarged terminal block member at said second end, each of said enlarged terminal block members receiving a plurality of spaced apart terminal pins interconnected with said core winding and having exterior lateral surfaces and a bottom surface coextensive with the exterior lateral surfaces of said core and the exterior bottom surface of said core winding, respectively.