An integrated transformer includes a primary winding and a secondary winding each having a spiral planar arrangement coils. A dielectric portion of dielectric material is interposed between the primary winding and the secondary winding. A field plate winding is electrically coupled with the primary winding. The field plate winding includes at least one field plate coil having a first lateral extension greater than a second lateral extension of a primary outer coil of the primary winding. The field plate coil is superimposed in plan view to the primary outer coil of the primary winding.

Tapes and coils for superconducting magnets are provided, along with methods of making the tapes and coils. In one embodiment, the coil includes a rare earth barium copper oxide (REBCO) superconducting tape; and a thin resistive layer of copper oxide, Cr, Ni, or Ni—P substantially coated onto the REBCO superconducting tape, wherein the coated REBCO superconducting tape is wound into a coil form. In another embodiment, the coil includes at least two REBCO superconducting tapes; and a stainless steel tape interlayer disposed between the at least two REBCO superconducting tapes, wherein the stainless steel tape comprises a plating layer of nickel or copper, and wherein the at least two REBCO superconducting tapes together with the stainless steel tape interlayer are wound into a coil form.

Tapes and coils for superconducting magnets are provided, along with methods of making the tapes and coils. In one embodiment, the coil includes a rare earth barium copper oxide (REBCO) superconducting tape; and a thin resistive layer of copper oxide, Cr, Ni, or Ni—P substantially coated onto the REBCO superconducting tape, wherein the coated REBCO superconducting tape is wound into a coil form. In another embodiment, the coil includes at least two REBCO superconducting tapes; and a stainless steel tape interlayer disposed between the at least two REBCO superconducting tapes, wherein the stainless steel tape comprises a plating layer of nickel or copper, and wherein the at least two REBCO superconducting tapes together with the stainless steel tape interlayer are wound into a coil form.

A split winding assembly for a transformer is configured to extend along a main limb of a transformer core between a first end and a second end. The split winding assembly includes a first split winding section extending from the first end toward a midpoint of the split winding assembly and a second split winding section extending from the second end toward the midpoint of the split winding assembly along the main limb of a transformer core. The first split winding section includes a first inner winding section configured to surround the main limb of the transformer core and a first outer winding section surrounding the first inner winding section. The second split winding section includes a second inner winding section configured to surround the main limb of the transformer core and a second outer winding section surrounding the second inner winding section.

A split winding assembly for a transformer is configured to extend along a main limb of a transformer core between a first end and a second end. The split winding assembly includes a first split winding section extending from the first end toward a midpoint of the split winding assembly and a second split winding section extending from the second end toward the midpoint of the split winding assembly along the main limb of a transformer core. The first split winding section includes a first inner winding section configured to surround the main limb of the transformer core and a first outer winding section surrounding the first inner winding section. The second split winding section includes a second inner winding section configured to surround the main limb of the transformer core and a second outer winding section surrounding the second inner winding section.

A winding body and method to avoid short-circuiting due to contact between conductors, and to suppress occurrence of structural defects such as cracks. A continuous thin band is folded at a folding site and wound helically. The folding site has a cutout portion, and folding at the folding site so that a conductor portion overlap another conductor portion causes the cutout portion to be formed into a recessed portion having a larger space than a gap between the conductor portions. A part of the conductor inside the folding site can be stowed in the recessed portion. The continuous thin band has a thickness desirably equal to or less than twice a skin depth with respect to a driving frequency of a coil component.

A winding body and method to avoid short-circuiting due to contact between conductors, and to suppress occurrence of structural defects such as cracks. A continuous thin band is folded at a folding site and wound helically. The folding site has a cutout portion, and folding at the folding site so that a conductor portion overlap another conductor portion causes the cutout portion to be formed into a recessed portion having a larger space than a gap between the conductor portions. A part of the conductor inside the folding site can be stowed in the recessed portion. The continuous thin band has a thickness desirably equal to or less than twice a skin depth with respect to a driving frequency of a coil component.

An inductor assembly includes a coil including a spirally wound metal foil.

An inductor assembly includes a coil including a spirally wound metal foil.

In an embodiment, a coil component includes an insulator part and a coil part. The insulator part is constituted by an electrical insulation material, and is no more than 600 μm long and no more than 600 μm high. The coil part is wound around one axis and placed inside the insulator part. The coil part has an opening part constituted by straight line parts and curved line parts and whose shape as viewed from the one axis direction is an approximate rectangle, wherein the line length of the curved line parts along the inner periphery of the opening part is no more than 40% of the line length of the inner periphery of the opening part. The coil component can satisfy both a size reduction need and the properties need.