US 5,349,321 A · Powercord transformer

Abstract

An elongated ferromagnetic core is surrounded by two windings. Optional separators separate the core from the windings and one winding from the other winding. A tube-like ferromagnetic sheath covers the windings and core. The sheath and core are connected, preferably at both ends. At one end, one winding may be connected to a plug for connecting to a wall outlet for supplying an alternating current thereto. At the other end, the other winding may be connected to an external load for providing a voltage thereto. Optionally, an electrically insulating, thermally conductive, outer cover covers the ferromagnetic sheath. In a first embodiment, one winding is surrounded by the other winding. In a second embodiment, one winding surrounds a portion of the core and the other winding surrounds another portion of the core.

Claims6

Dependent claims

A powercord transformer, comprising:

an elongated core comprising ferromagnetic material;
a first winding surrounding said core;
a second winding surrounding said core, wherein said first winding and said second winding are stationary relative to one another and wherein said first winding surrounds a first portion of said core and said second winding surrounds a second portion of said core;
a sheath comprising ferromagnetic material surrounding said core, said first winding and said second winding;
and
means for connecting said sheath to said core, such that a complete magnetic circuit is created.

3 more elements

Dependencies are inferred from the claim text.

Powercord transformer

Life of this patent

Powercord transformer

Life of this patent

Abstract

Claims6