The disclosure provides a magnetic assembly and a power supply apparatus. The magnetic assembly of the present disclosure includes: a first magnetic core, a plurality of windings, a housing and a second magnetic core, where the first magnetic core has a winding area, and the plurality of windings are wound with an interval on the winding area of the first magnetic core; the housing has an accommodating cavity, and at least part of the plurality of windings is accommodated in the accommodating cavity, and the second magnetic core is arranged between a cavity wall of the accommodating cavity and the plurality of windings. According to the present disclosure, parasitic parameters such as leakage inductance of the magnetic assembly are relatively stable, and the power supply efficiency is improved and higher.

A coil device includes a first core, a second core, and a conductor. The first core includes a first leg. The second core is disposed with a gap between the first leg and the second core. The conductor is at least partly disposed between the first core and the second core. A notch is formed on the conductor at a position corresponding to the gap.

A test and measurement instrument for determining magnetic core losses of a device under test during in circuit operation. The test and measurement instrument receives a primary current signal from a primary winding of a device under test and receives a primary voltage signal measured across a magnetic core of the device under test. Based on the primary electric current signal and the primary voltage signal, the test and measurement instrument determines a magnetic loss of the device under test. In some examples, the test and measurement instrument can use primary and secondary voltage and current inputs to determine the magnetic loss of the device under test. The magnetic loss of the device under test can be displayed on a display of the test and measurement instrument. The magnetic loss can include a total magnetic loss, a hysteresis loss, a copper loss, and/or other losses.

In some examples, a magnetic shield for a plasma source is provided. An example magnetic shield comprises a back-shell. The back-shell includes a cage defined, at least in part, by an arrangement of bars of ferro-magnetic material. The cage is sized and configured to at least extend over a top side of an RF source coil for the plasma source.

A module is provided with a substrate having a main surface, and each of one or more inductors that are disposed on the main surface of the substrate. A resin sealing portion seals the one or more inductors and covers the main surface of the substrate. A ground conductor is disposed on an outer peripheral side of the substrate with respect to entirety of the one or more inductors in a plan view. A plurality of linear conductors are disposed on the resin sealing portion. The plurality of linear conductors are disposed with gaps therebetween, such that the one or more inductors underlie at least one of the plurality of linear conductors in the plan view.

An electric transformer comprising a first magnetic circuit coupling a primary coil and a secondary coil, the first magnetic circuit comprising a first limb extending along a vertical axis, the primary coil comprising inner and outer primary coils connected in series, the inner primary coil, the secondary coil, and the outer primary coil being cylindrical and arranged concentrically around the first limb, wherein the inner primary coil, the secondary coil and the outer primary coil are mounted in a manner to maintain a predefined inner gap between the inner primary coil and the secondary coil and a predefined outer gap between the secondary coil and the outer primary coil, the inner and outer gaps being evaluated along a radial direction relative to the vertical axis, the inner and outer gaps increasing a leakage of a magnetic flux between the first coil and the secondary coil. The electric transformer comprising an additional second magnetic circuit having selected limb(s) that pass through predefined gap(s) between coils thereby providing preferred increase in leakage magnetic flux between the first coil and the secondary coil.

A server farm with at least one hybrid computing module operating at clock speed optimally matching intrinsic clock speed of a related semiconductor die related thereto.

A fully integrated gyrator with a high speed stack and networks of server farms and telecommunication modes incorporating the gyrator.

An electrically conductive material configured having at least one opening of various unlimited geometries extending through its thickness is provided. The opening is designed to modify eddy currents that form within the surface of the material from interaction with magnetic fields that allow for wireless energy transfer therethrough. The opening may be configured as a cut-out, a slit or combination thereof that extends through the thickness of the electrically conductive material. The electrically conductive material is configured with the cut-out and/or slit pattern positioned adjacent to an antenna configured to receive or transmit electrical energy wirelessly through near-field magnetic coupling (NFMC). A magnetic field shielding material, such as a ferrite, may also be positioned adjacent to the antenna. Such magnetic shielding materials may be used to strategically block eddy currents from electrical components and circuitry located within a device.

Techniques for fabricating low-loss magnetic vias within a magnetic core are provided. According to some embodiments, vias with small, well-defined sizes may be fabricated without reliance on precise alignment of layers. According to some embodiments, a magnetic core including a low-loss magnetic via can be wrapped around conductive coils of an inductor. The low-loss magnetic vias can improve performance of an inductive component by improving the quality factor relative to higher loss magnetic vias.