Abstract: An inductor includes a body including a stacked plurality of insulating layers, and a plurality of coil patterns arranged on the insulating layers; and first and second external electrodes disposed on a first surface of the body. The plurality of coil patterns are connected to each other through coil connection portions and form a coil having first and second ends connected to the first and second external electrodes through first and second coil lead-out portions, respectively, and a shortest distance L1 between the coil patterns and a second surface of the body opposing the first surface is shorter than a shortest distance L2 between the coil patterns and the first surface of the body.

Abstract: A common mode filter includes a filter portion and an electrostatic protection portion disposed on the filter portion. The electrostatic protection portion includes first and second discharge electrodes spaced apart from each other, a discharge layer disposed between the first and second discharge electrodes, and a first insulating layer cover an upper surface of the discharge layer and including flat first insulating particles and spherical second insulating particles.

Abstract: An electro-power impact cell used in blasting works includes a first electrode to which a high voltage is applied, the first electrode having a plurality of conductive piece between which nonconductive pieces are disposed so that when the high voltage is applied to the first electrode, arc occur at the nonconductive piece; a second electrode spaced away from the first electrode; and a closed-cartridge enclosing the first and second electrodes while containing electrolyte.

Abstract: A pulse power system includes an energy storing device for storing electric energy; a high power arc switch comprising: a cylindrical housing having a central axis and defining a predetermined discharging region; a first electrode disposed within the cylindrical housing to be movable in a direction of the central axis; a second electrode disposed within the cylindrical housing and spaced away from the first electrode at a predetermined distance, an arc generating between the first and second electrodes as the first electrode approaches the second electrode; an insulating member formed at a portion between the first and second electrodes except for the discharging region; and a solenoid coil for forming a magnetic field within the discharging region in a direction of the central axis, the arc formed between the first and second electrodes being spirally moved in a direction of the central axis by a magnetic field formed in a circular direction by the arc and the magnetic field formed by the solenoid coil in th

Abstract: An industrial X-ray/electron beam source includes an accelerator having a) a coaxial cavity b) an electron gun for emitting an electron beam to be accelerated, c) at least one deflection magnet positioned outside of the cavity, and d) a radio frequency power supply means for supplying power of a radio frequency to the cavity to induce TM010 mode as an accelerating mode in the cavity; and a beam irradiator having a two-dimensional scanning magnet which deflects accelerated beam by the accelerator, an extracting window for extracting the deflected electron beam to be irradiated to an object, and means for guiding the deflected beam toward a center of the extracting window in a radial direction. The source is advantageous in that the electron beams do not intersect inside the cavity, which can reduce beam loss, and that beams or X-rays are irradiated to the object spatially uniformly.