H01F2027/2819

Isolation Transformer Topology

A transformer for module integration includes a first layer of magnetic material having an outer edge, a second layer of magnetic material having an outer edge, and an isolation layer positioned between the first layer of magnetic material and the second layer of magnetic material along a primary axis. The transformer includes a first inductive element positioned in the first layer of magnetic material and a second inductive element disposed opposite of the first inductive element and in the second layer of magnetic material.

Semiconductor device and semiconductor module

The semiconductor device of the present invention includes an insulating layer, a high voltage coil and a low voltage coil which are disposed in the insulating layer at an interval in the vertical direction, a low potential portion which is provided in a low voltage region disposed around a high voltage region for the high voltage coil in planar view and is connected with potential lower than the high voltage coil, and an electric field shield portion which is disposed between the high voltage coil and the low voltage region and includes an electrically floated metal member.

Electrostatically tunable magnetoelectric inductors with large inductance tunability
09691544 · 2017-06-27 · ·

An electrostatically tunable magnetoelectric inductor including: a substrate; a piezoelectric layer; and a magnetoelectric structure comprising a first electrically conductive layer, a magnetic film layer, a second electrically conductive layer, and recesses formed so as to create at least one electrically conductive coil around the magnetic film layer; with a portion of the substrate removed so as to enhance deformation of the piezoelectric layer. Also disclosed is a method of making the same. This inductor displays a tunable inductance range of >5:1 while consuming less than 0.5 mJ of power in the process of tuning, does not require continual current to maintain tuning, and does not require complex mechanical components such as actuators or switches.

Methods and Apparatus for Isolation Barrier with Integrated Magnetics for High Power Modules

Methods and apparatus for isolation barrier with magnetics. In an example arrangement, an apparatus includes an isolation laminate including a dielectric core having a first surface and a second surface opposed to the first surface; at least one conductive layer configured as a first transformer coil overlying the first surface; a first dielectric layer surrounding the at least one conductive layer; a first magnetic layer overlying the at least one conductive layer; at least one additional conductive layer configured as a second transformer coil overlying the second surface; a second dielectric layer surrounding the at least one additional conductive layer; and a second magnetic layer overlying the at least one additional conductive layer. Methods for forming the isolation barriers and additional apparatus arrangements are also disclosed.

Inductor device

An inductor device includes a first wire, a second wire, and a third wire. The first wire includes a plurality of first sub-wires. The second wire includes a plurality of second sub-wires. The sequence of the first sub-wires and the second sub-wires is that at least two first sub-wires of the first sub-wires and at least one second sub-wires of the second sub-wires are disposed to each other in an interlaced manner. The third wire is disposed adjacent to at least two first sub-wires of the first sub-wires.

IMPEDANCE MATCHING TRANSFORMER FOR HIGH-FREQUENCY TRANSMISSION LINE
20170149407 · 2017-05-25 ·

An impedance matching transformer for high-frequency transmission line includes a carrier plate, a plurality of conductive posts, a magnetic core and a microstrip inductor. During high frequency transmission, the impedance matching transformer is used as a balanced-to-unbalanced transformation between high-frequency transmission lines. The microstrip inductor includes a plurality of laminated non-conductive substrates, a plurality of conductive tracks laid on the laminated non-conductive substrates respectively. Each of the conductive tracks is electrically connected through vias. Finally, several outlet paths are led out, and then connected to conductively accessing holes.

Solderable planar magnetic components

An inductive component having a printed circuit board (PCB) with a first side and a second side. An aperture extends through the PCB and a conductive winding is printed onto the PCB surrounding the aperture. A core is formed by a first core member and a second core member. The first core member includes a first base member with at least one joining surface which is solderable to the first side. A first core leg extends at least partially through the aperture. The second core member includes at least a second base member and is coupled to the first core member or the second side. To manufacture the PCB, the first core member is soldered to the first side and then the PCB is inverted. The second core member is then coupled to at least one of the first core member or the second side.

COIL COMPONENT AND CIRCUIT BOARD IN WHICH COIL COMPONENT ARE EMBEDDED

Disclosed herein is a coil component that includes a first planar spiral conductor; a second planar spiral conductor laminated on the first planar spiral conductor and wound in an opposite direction to the first planar spiral conductor; a first external terminal electrically connected to an outer peripheral end of the first planar spiral conductor; a second external terminal electrically connected to an outer peripheral end of the second planar spiral conductor; and a third external terminal electrically connected in common to inner peripheral ends of the first and second planar spiral conductors.

System and method for reducing partial discharge in high voltage planar transformers

A device includes a printed circuit board (PCB). The device may also include a high voltage coil disposed on the PCB and a low voltage coil disposed on the PCB. Further, a conductive shield forms a three-dimensional enclosure around the high voltage coil and confines an electric field generated by the device to the PCB.

Integrated Inductor Structure and Integrated Transformer Structure
20170098500 · 2017-04-06 ·

An integrated inductor structure includes a first spiral coil, a second spiral coil and a connection metal segment. The first spiral coil includes a plurality of metal segments, a bridging segment and first to fourth terminals. The bridging segment connects the metal segments. The second spiral coil has fifth and sixth terminals. The connecting metal segment connects the third and fifth terminals and the fourth and the sixth terminals. The integrated inductor structure uses the first and second terminals as its input and output terminals. The first and third terminals are on a first imaginary line, which passes a central region of a region surrounded by the first spiral coil. The bridging segment and the central region of the region are on a second imaginary line. An included angle between the two imaginary lines is equal to or greater than 45 degrees and equal to or smaller than 90 degrees.