An inductor has one or more wires and a multipart magnetic core. The multipart magnetic core has magnetic core parts that are adjacent and magnetically coupled. The inductor provides an inductance of at least 40 nH for currents greater than 1 A and less than 60 A, and at least 20 nH for currents of at least 60 A.

An inductor has one or more wires and a multipart magnetic core. The multipart magnetic core has magnetic core parts that are adjacent and magnetically coupled. The inductor provides an inductance of at least 40 nH for currents greater than 1 A and less than 60 A, and at least 20 nH for currents of at least 60 A.

A power module comprises a first circuit board assembly and a magnetic core assembly. The first circuit board assembly comprises a first printed circuit board and at least two switch circuits disposed on the first printed circuit board. The magnetic core assembly is disposed near the first printed circuit board and comprises a magnetic core portion and at least one pair of first electrical conductors. The magnetic core portion comprises at least one core unit, the core unit comprises a pair of holes and a second magnetic overlapping region, and the pair of holes are separated by the second magnetic overlapping region. Each pair of the first electrical conductors is penetrated through the corresponding pair of holes of the magnetic core portion to define two output inductors. Each of the switch circuits is electrically connected with the corresponding output inductor to define a phase circuit of the power module.

According to one configuration, an inductor device comprises: core material and one or more electrically conductive paths. The core material is magnetically permeable and surrounds (envelops) the one or more electrically conductive paths. Each of the electrically conductive paths extends through the core material of the inductor device from a first end of the inductor device to a second end of the inductor device. The magnetically permeable core material is operative to confine (guide, carry, convey, localize, etc.) respective magnetic flux generated from current flowing through a respective electrically conductive path. The core material stores the magnetic flux energy (i.e., first magnetic flux) generated from the current flowing through the first electrically conductive path. One configuration herein includes a power converter assembly comprising a stack of components including the inductor device as previously described as well as a first power interface, a second power interface, and one or more switches.

An inductor includes a magnetic core composed of a magnetic material having variable permeability characteristics based on at least one of design parameters or operational parameters of the inductor that includes one or more air gaps. A coil is wound through the one or more air gaps and is configured to be excited by an electric current.

An isolation transformer includes a transformer core. First and second through-bores extend through the transformer core from a first surface to a second surface. Each through-bore has an elongated profile with at least a portion of the elongated profile providing a respective flat winding surface. The flat winding surfaces are spaced apart by a central portion of the transformer core. The transformer is wound with a six-wire cable having a central non-conductive core. First, second, third, fourth, fifth and sixth conductive wires are positioned around and adjacent to the central non-conductive core in a substantially equally spaced angular relationship. The second conductive wire is positioned between the first conductive wire and the third conductive wire; and the fifth conductive wire is positioned between the fourth conductive wire and the sixth conductive wire. The conductive wires are twisted about the central non-conductive core at a selected twist density.

A voltage regulator module includes a first circuit board assembly, a second circuit board assembly and a magnetic core assembly. The first circuit board assembly includes a first printed circuit board. The second circuit board assembly includes a second printed circuit board, at least one output capacitor, a plurality of ball grid arrays and at least one bonding pad. The second printed circuit board includes a first surface and a second surface. The plurality of ball grid arrays are disposed on the second surface of the second printed circuit board. The at least one bonding pad is arranged beside the first surface of the second printed circuit board. The magnetic core assembly is arranged between the first circuit board assembly and the second circuit board assembly and electrically connected with the at least one bonding pad. The at least one output capacitor is embedded within the second circuit board assembly.

A voltage regulator module includes a circuit board assembly and a magnetic core assembly. The circuit board assembly includes a printed circuit board and at least one switch element. A first concave structure is concavely formed on a second surface of the printed circuit board. At least one protrusion post is disposed within the first concave structure. A pin as a positive output terminal, a pin as a positive input terminal and a pin as a negative output terminal are disposed on the second surface of the printed circuit board. The switch element is disposed on a first surface of the printed circuit board. The magnetic core assembly is accommodated within the first concave structure, and includes at least one opening. The protrusion post is penetrated through the corresponding opening. Consequently, at least one inductor is defined by the at least one protrusion post and the magnetic core assembly collaboratively.

According to one configuration, an inductor device comprises: core material and one or more electrically conductive paths. The core material is magnetically permeable and surrounds (envelops) the one or more electrically conductive paths. Each of the electrically conductive paths extends through the core material of the inductor device from a first end of the inductor device to a second end of the inductor device. The magnetically permeable core material is operative to confine (guide, carry, convey, localize, etc.) respective magnetic flux generated from current flowing through a respective electrically conductive path. The core material stores the magnetic flux energy (i.e., first magnetic flux) generated from the current flowing through the first electrically conductive path. One configuration herein includes a power converter assembly comprising a stack of components including the inductor device as previously described as well as a first power interface, a second power interface, and one or more switches.

An inverter having a first busbar for connection to a positive pole of a battery and a second busbar for connection to a negative pole of the battery and a filter element that includes an annular core surrounding the first and the second busbar and made from a ferromagnetic material. It is proposed that a core made from a further ferromagnetic material to be provided in an intermediate space surrounded by the annular core and formed between the two busbars.