An endoscope includes a body and a circuit board mounted within the body. A cable couples the circuit board to an imaging system. A common-mode choke is mounted within the body and is configured to electrically isolate the cable from the body at cautery frequencies. A method includes twisting a plurality of wires together to form a twisted set of wires. The twisted set of wires is wound around a core so that windings do not overlap, and so that a first winding and a last winding are separated from each other. Wires in the twisted set of wires are coupled to a plurality of wires in the cable. Also, these wires in the twisted set of wires are also coupled to the circuit board.

A soft magnetic powder has a composition represented by Fe.sub.100-a-b-c-d-e-f-g-hCu.sub.aSi.sub.bB.sub.cM.sub.dM′.sub.eX.sub.fAl.sub.gTi.sub.h (at %) (wherein M is at least one element selected from the group consisting of Nb and the like, M′ is at least one element selected from the group consisting of V and the like, X is at least one element selected from the group consisting of C and the like, and a, b, c, d, e, f, g, and h satisfy the following formulae: 0.1≤a≤3, 0<b≤30, 0<c≤25, 5≤b+c≤30, 0.1≤d≤30, 0≤e≤10, 0≤f≤10, 0.002≤g≤0.032, and 0≤h≤0.038), wherein a crystalline structure having a particle diameter of 1 to 30 nm is contained in an amount of 40 vol % or more.

A system comprising a high voltage (HV) bank section using capacitors arranged into two banks, a multifilar inductor coupling the HV bank to a service voltage (SV) bank section and load through a charging circuit charging the SV bank from a more fully charged bank until the charging bank is depleted, and a switch switching, from the depleted bank to the other bank of bank to charge the SV bank. The charging circuit then charging the depleted bank by a power supply as the other HV bank charges the SV bank. A supervisory controller controls the switch to repeat switching and charging between the two banks for a defined period. The capacitors may be supercapacitors having a capacitance on the order of 1 to 10 MegaJoules.

A filter inductor, which includes: an outer magnetic core with a window, an inner magnetic core, and a winding. The inner magnetic core includes a first inner magnetic core and a second inner magnetic core which are located at least partially in the window. The winding includes a first winding, a second winding, a third winding and a fourth winding which are wound around the outer magnetic core at intervals. The first inner magnetic core and the second inner magnetic core are stacked. For the first inner magnetic core, a first end is located between the first winding and the second winding, and a second end is located between the third winding and the fourth winding. For the second inner magnetic core, a first end is located between the second winding and the third winding, and a second end is located between the fourth winding and the first winding.

An inductor component 1 includes a resin layer 2, a protective film 4, two metal pins 5 provided to stand in the resin layer 2, and a metal plate 6 joined to both of the metal pins 5, and both of the metal pins 5 and the metal plate 6 configure an inductor electrode 7. Both of the metal pins 5 are provided to stand in the resin layer 2, upper end surfaces 5a thereof are exposed to an upper surface 2a of the resin layer 2, and lower end surfaces 5b thereof are exposed to a lower surface 2b. Recesses 8 are formed around the peripheral edges of the upper end surfaces 5a of both of the metal pins 5 by laser beam irradiation.

An inductor according to one embodiment of the present invention comprised: a magnetic core; and a coil wound around the magnetic core, wherein the magnetic core includes a plurality of stacked sub-magnetic cores, each sub-magnetic core includes a first magnetic body and a second magnetic body, the first magnetic body and the second magnetic core are different materials, the second magnetic body is arranged on a surface of the first magnetic body, each sub-magnetic core has a toroidal shape, and a permeability of the first magnetic body differs from a permeability of the second magnetic body.

An inductor includes a first magnetic body having a toroidal shape and having a ferrite; and a second magnetic body configured to be different from the first magnetic body and including a metal ribbon, wherein the second magnetic body includes an outer magnetic body disposed on an outer circumferential surface of the first magnetic body and an inner magnetic body disposed on an inner circumferential surface of the first magnetic body, and each of the outer magnetic body and inner magnetic body is wound in a plurality of layers in a circumferential direction of the first magnetic body.

The invention comprises an inverter/converter yielding high frequency harmonics and/or non-sixty Hertz output coupled to a high frequency inductor-capacitor filter apparatus. For example, an inverter/converter apparatus is provided that uses a silicon carbide transistor to output power having a carrier frequency modulated by a fundamental frequency and a set of harmonic frequencies, where the minimum carrier frequency is above that usable by an iron-steel inductor, such as greater than ten kiloHertz at fifty or more amperes. An inductor-capacitor filter, comprising an inductor having a distributed gap core material, receives power output from the inverter/converter and processes the power by passing the fundamental frequency while reducing amplitude of the harmonic frequencies.

An inductor according to an embodiment of the present invention comprises: a first magnetic body having a toroidal shape, and including a ferrite; and a second magnetic body disposed on an outer circumferential surface or an inner circumferential surface of the first magnetic body, wherein the second magnetic body includes: resin material and a plurality of layers of metal ribbons wound along the circumferential direction of the first magnetic body, wherein the resin material comprises a first resin material disposed to cover an outer surface of the plurality of layers of metal ribbons, and a second resin material disposed in at least a part of a plurality of layers of interlayer spaces.

A coil component includes: a core having an annular shape; a coil wound around the core; and an electrode terminal for mounting the coil component. The electrode terminal is connected to the coil and has a mounting surface. The coil is formed by connecting a plurality of wire members. The electrode terminal has a recessed portion indented toward a back surface on a side opposite to the mounting surface. The wire member of the coil is connected to a back surface of a bottom portion of the recessed portion.