In an embodiment an inductive component includes at least one spiral-shaped winding made of a conductive material and a carrier made of an insulating material, wherein the spiral-shaped winding is incorporated into the carrier.

A planar matrix transformer assembly. In one embodiment, the assembly comprises (a) a core comprising multiple center posts in a matrix pattern; and multiple edge posts along edges of the core for a magnetic flux return path; (b) a single-turn layer comprising a top winding on the top the layer to form a single turn around each center post; and a bottom winding electrically coupled to the top winding and on the bottom of the layer to form a single turn around each center post; and (c) a multi-turn layer comprising multiple top-side windings on top of the layer, wherein each top-side winding is a multi-turn winding around a different center post; and multiple bottom-side windings on the bottom of the multi-turn layer, wherein each bottom-side winding is (i) electrically coupled to a different top-side winding in a one-to-one correspondence, and (ii) a multi-turn winding around a different center post.

In manufacturing an embedded magnetic component, a cavity is formed in an insulating substrate with one or more channels connecting the cavity to an exterior of the component. The channels include one or more obstruction sections that define a sealed base area of the cavity into which adhesive is dispensed to secure the magnetic core in the cavity. The obstruction sections prevent egress of the adhesive before it hardens. The cavity and the magnetic core are then covered with a first insulating layer. Through holes are formed through the first insulating layer and the insulating substrate, and plated up to form conductive vias. Metallic traces are added to the exterior surfaces of the first insulating layer and the insulating substrate to form upper and lower winding layers. The metallic traces and the conductive vias form the windings for an embedded magnetic component, such as a transformer or an inductor.

A matrix transformer particularly suited to large voltage step-down, high current applications achieves increased good current sharing uniformity or air gap and electrical characteristics and reduced or eliminating termination losses, core losses and winding losses with a unitary magnetic core structure featuring sheets of magnetic material and a two-dimensional array of pillars on which windings, oriented in opposite directions on pillars that are adjacent in orthogonal directions, can be formed or placed comprising metallization on or embedded in a printed circuit board (PCB) structure. Magnetic flux density is reduced by at least one-half by dividing the magnetic flux in each pillar into two paths of increased width in the sheets of magnetic material. Magnetic flux density may be further decreased and flux uniformity improved by extending the sheets of magnetic material beyond a periphery defined by the pillar array.

Provided are a transformer and a power supply board including the transformer, the transformer includes: a power supply circuit, wherein the power supply circuit includes a power supply antenna and the power supply circuit is configured to transmit electric power through the power supply antenna; and a power receiving circuit, wherein the power receiving circuit includes a power receiving antenna and the power receiving circuit is configured to receive the electric power transmitted by the power supply antenna through the power receiving antenna. The transformer uses the principle of resonance wireless charging so as to improve the working frequency of the transformer, decrease the volume and weight of the transformer, save a magnetic core, and decrease or eliminate the magnetic core loss.

Illustrative embodiments of hybrid transformers, power supplies, and methods relating to the same are disclosed. In at least one embodiment, a hybrid transformer includes first and second wire coils arranged on opposing surfaces of a printed circuit board (PCB), a core extending through the PCB, wherein the first and second coils are each wound around the core, and at least one header electrically coupling one of the first and second wire coils to the PCB.

Embodiments of present disclosure relate to an input/output (I/O) module and a control system. The I/O module includes at least two coreless communication transformers arranged in parallel, each coreless communication transformer which includes a printed circuit board. The I/O module also includes a primary winding and a secondary winding disposed on opposite sides of the PCB, and at least two closed wires disposed coaxially on the PCB and arranged around the primary winding or inside the primary winding. The crosstalk of the I/O module is reduced and the communication robustness of the I/O module is improved.

Shielded electrical transformers and power converters using those transformers are disclosed. In some implementations, a shielded electrical transformer includes a magnetic core, a primary winding, a first secondary winding, and a second secondary winding. The transformer includes a first shielding winding that has a same voltage potential direction as the primary winding and is connected in series with the primary winding to carry current that passes through the primary winding. The transformer also includes a second shielding winding that has a voltage potential direction opposite the primary winding and is connected from primary ground to a floating terminal. The first secondary winding, the second secondary winding, the first shielding winding, and the second shielding winding can each have an approximately equal number of turns.

A transformer includes a ceramic housing, a primary winding disposed within the housing, a secondary winding disposed outside the winding, and a core extending through a first aperture in the housing. The housing includes a first portion and a second portion. Each of the first and second portions include a planar structure having a first housing aperture, and a plurality of sidewalls extending perpendicular to the planar structure along a plurality of edges of the planar structure. The first and second portions interface with one another when the ceramic housing is assembled such that the sidewalls of the first and second portions overlap with one another.

Apparatus providing an integrated transformer are disclosed. An example apparatus includes a power conversion system including a switching circuit including a first primary side transistor coupled between a first input node and a switching node, and a second primary side transistor coupled between the switching node and a second input node, a series circuit including a transformer primary winding, a capacitor, and an inductor coupled in series between the switching node and the second input node, a transformer secondary circuit including a first transformer secondary winding and a second transformer secondary winding, the first and the second transformer secondary windings electrically between a first converter output and a second converter output, the transformer primary winding and the transformer secondary windings wound around at least a portion of a corresponding one of a transformer core in an infinity winding arrangement.