Abstract: Disclosed herein is a choke coil including: a core composed of first and second legs, a first flat plate connecting an upper end portion of the first leg and that of the second leg, and a second flat plate connecting a lower end portion of the first leg and that of the second leg; a primary coil wound around the first leg; and a secondary coil wound around the second leg, wherein a width of at least any one of the first flat plate and the second flat plate is greater than widths of the first leg and the second leg.

Abstract: Disclosed herein is a choke coil including: a core composed of first and second legs, a first flat plate connecting an upper end portion of the first leg and that of the second leg, and a second flat plate connecting a lower end portion of the first leg and that of the second leg; a primary coil wound around the first leg; and a secondary coil wound around the second leg, wherein a width of at least any one of the first flat plate and the second flat plate is greater than widths of the first leg and the second leg.

Abstract: There is provided a choke coil, including: a core part having first and second legs; a winding part having a first coil wound around the first leg and a second coil wound around the second leg; and a sectioning wall partitioning the winding part into several winding regions.

Abstract: There is provided a power supply having a surge protection circuit for protecting a product from a power surge by way of efficiently discharging a surge voltage or a surge current introduced through AC input power terminals to be applied to the product during the use of the product. The power supply having a surge protection circuit includes a discharging unit having discharge patterns disposed between power lines of input power terminals to discharge a surge voltage introduced into each of the power lines of the input power terminals; and a power supplying unit converting the power input via the input power terminals into predetermined power to supply the converted power.

Abstract: There are provided an electromagnetic interference filter and a method of manufacturing the same. The electromagnetic interference filter includes a base core including a first base core and a second base core facing the first base core, a leg core including first and second leg cores disposed between the first base core and the second base core, the first and second leg cores facing each other, a winding coil part including first and second winding coils wound around the first and second leg cores, respectively, and connected to a power supply, the first and second winding coils respectively providing magnetizing inductance and leakage inductance, and a central core disposed between the first and second cores to provide an inductance leakage path between the first and second base cores.

Abstract: There are provided an electromagnetic interference filter for removing common mode electromagnetic interference, in which electromagnetic interference of a low frequency band and a high frequency band is removed in a single filter because of a wide block frequency band, a power supply apparatus including the electromagnetic interference filter, and a display apparatus including the electromagnetic interference filter. The electromagnetic interference filter includes a core part including at least two legs electromagnetically coupled and forming a closed magnetic circuit; a coil part including first and second rectangular copper wires respectively wound in a single layer around the at least two legs and removing common mode electromagnetic interference included in power transferred from a power line; and a support part having a mounting area in which the core part having the coil part wound therearound is mounted.

Abstract: Provided are an optical system for processing an image using a PSF and an image processing method thereof. The optical system includes one or more lenses, an image sensor, and an image processor. The image sensor senses an image formed by the lenses, and the image processor recovers the image sensed by the image sensor using a PSF. A BFL defined as a distance between a refractive surface of one of the lenses that is closest to an image-side and the image sensor, is controlled such that ?PSF defined by Equation below has a value less than 100%. ? ? ? PSF ? ( % ) = PSF ? - PSF macro ( PSF ? + PSF macro ) ? / ? 2 × 100 An image is recovered using a PSF, so that an excellent image can be obtained over a wide object distance range.