Abstract: There are provided an integrated transformer in which a power conversion transformer and an inductor for stabilizing output power by the transformer are integrated into one transformer structure, and a power supply using the same. An integrated transformer according to an aspect of the invention includes: a core part including: first and second supports; and first and second outer legs and a center leg provided between the first and second supports, and magnetically connecting the first and second supports to each other, wherein a cross-section of the first and second outer legs and a cross-section of the center leg have a width of the first support and a width of the second support in a longitudinal direction, respectively, and a width of each of the first and second outer legs exceeds 0.5 times a width of the center leg but does not exceed 2 times the width of the center leg.

Abstract: A dielectric paste composition for manufacturing a transparent dielectric layer, the dielectric paste composition including a cyanoresin, and a carbonate solvent. Also a method of forming a transparent dielectric layer, and a device including the transparent dielectric layer.

Abstract: The present disclosure relates to a resistance random access memory comprising a first electrode, a thin film layer formed on the first electrode and including a resistance switching layer and a switching layer bonded to each other, and a second electrode formed on the thin film layer, and relates to a method of manufacturing the same.

Abstract: There are provided a method and an apparatus for generating a current command value for tracking the maximum power point of a solar energy generating system. The apparatus includes: a voltage detector detecting a voltage input into the flyback power converter; a first calculator calculating an output power from the detected input voltage; a second calculator calculating a power variation based on the calculated output power and a voltage variation of the input voltage; and a current command value generator generating a current command value for tracking the maximum power point of the solar cell module from the calculated voltage variation and the calculated power variation. Accordingly, a current command value after calculating an output power may be generated with only a voltage detector, without a current detector, thereby reducing the costs of a solar energy generating system by decreasing the costs for a high-priced current detector, and simplifying circuit.

Abstract: A unit cell of a fuel cell stack, and a fuel cell stack including the unit cell, where the unit cell includes channel plates including first and second manifolds, a plurality of channels and channel connecting units; hard plates arranged to contact surfaces of the channel connecting units; and gaskets arranged to surround the plurality of channels and first and second manifolds between the channel plates and the hard plates.

Abstract: A nano-sized phosphor including: sulfur, wherein the nano-sized phosphor has a mean largest particle diameter of less than 1 micrometer.

Abstract: A method for manufacturing a dielectric ceramic, the method including: combining a ferroelectric compound having a perovskite structure and a halide to provide a mixture; heat treating the mixture; and removing the halide from the heat treated mixture to manufacture the dielectric ceramic.

Abstract: The present invention provides a switching device and a method for preventing malfunction of the same. The switching device includes: a controller for outputting a plurality of digital control signals; a protecting unit connected to the controller for protecting all signals when the plurality of digital control signals outputted from the controller are simultaneously received at a state of ON; a gate driver connected to the protecting unit for generating a switch control signal by converting the control signal passed through the protecting unit; and a plurality of switches connected to the gate driver for individually performing ON•OFF operations according to each of the switching control signals.

Abstract: The present invention relates to a device and a method for detecting a pin hole in a part of a fuel cell stack part to accurately detect the presence of pin holes of stack parts thereby ensuring quality of a fuel cell stack. That is, the present invention provides a system for detecting a pin hole in parts of a fuel cell stack that allows for quality assurance of the fuel cell stack and prevents defective parts from being used, by examining each fuel stack part, which largely influence the quality of the fuel cell stack, using an X-ray device and a vision system, in order to determine the presence of a pin hole in the parts, and a method thereof.

Abstract: A visible light communication system and method for transmitting and receiving an information symbol in a visible light communication system for a Color Code Modulation (CCM) scheme using a chromaticity diagram. The method includes determining a first coordinates value corresponding to an information symbol to be transmitted on the chromaticity diagram; determining a first color ratio corresponding to the first coordinates value; determining a second coordinates value corresponding to a compensation symbol for compensating for the first color ratio into a color white and determining a second color ratio corresponding to the second coordinates value; and emitting a visible ray corresponding to each of the first color ratio and second color ratio. The first and second coordinates values are located on a line on the chromaticity diagram.

Abstract: A power supply apparatus for a line connection type fuel cell system includes a power converter system (PCS) control power supply which generates PCS control power from line power, a balance of plant (BOP) power supply which generates BOP power from line power, a regulator which generates PCS control power from the BOP power, a first switching unit switched by a control signal, which directs the line power to one of the PCS control power supply and the BOP power supply, a second switching unit switched by a control signal, which selects an output of one of the PCS control power supply and the regulator to provide PCS control power, and a controller which controls switching of the first and second switching units in response to a starting command.

Abstract: The present invention provides an integrated medium access control for processing respectively separated traffic situation sets. Another aim of the present invention is to optimize power consumption during a poll based operation of the medium access control mechanism. An additional aim of the present invention is to provide a poll-based error recovery mechanism for achieving preferred application reliability through power- and cost-efficient methods. A further aim of the present invention is to provide an in-band wakeup method for a medical implant device in a human body area network. Still a further aim of the present invention is to provide a method for a medical implant device in a human body area network. An even further aim of the present invention is to provide a method for simultaneously accessing a power channel of a poll-based minimum level and operating a plurality of BANs in medical implant communications.

Abstract: A system and method for fast network re-entry in a broadband wireless access communication system. A mobile station transmits a first message requiring fast network re-entry to a base station and performs the fast network re-entry together with the base station when receiving a second message approving the fast network re-entry from the base station. The base station receives the first message, authenticates the first message using final session information of the mobile station that is previously stored in the base station, transmits the second message to the mobile station when succeeding in authentication of the first message, and performs the fast network re-entry together with the mobile station.

Abstract: Method and device for exchanging messages in a VLC navigation system is provided, in which a map server generates a provision message in the form of visible light signals through all lamps in an area, using a PLC network, where a navigation service is provided, a terminal that wants to implement the navigation service among terminals that have received the provision message transmits a registration request message to the map server, the map server transmits a registration response message for the registration request message to the terminal, the terminal transmits a map request message including information about a destination to the map server, the map server transmits a map response message including information about a path to the destination to the terminal, and the terminal displays map information and the path.

Abstract: A head lamp for a vehicle is provided, which includes a reflector for reflecting light emitted from a light source, a reflection plate for collecting the light reflected from the reflector in an upward direction, a micro-reflection module provided over the reflector to tilt and reflect the light collected by the reflection plate at a desired angle, and an optical lens for irradiating the light reflected from the micro-reflector onto a road surface. The head lamp can implement various beam patterns in accordance with road and surrounding circumferences, and irradiate vehicle information onto a road surface, thereby reducing the dazzle of other drivers of opposite vehicles and improving the field of vision of the driver to improve the safety and convenience.

Abstract: An optical wireless communication device having a PhotoDiode (PD) for photosensitive detection means, receives a guide message from a specific optical wireless communication device, determines any one optical wireless communication scheme among different optical wireless communication schemes which are included in the guide message and supportable by the specific optical wireless communication device, as a content delivery scheme to be used during content reception, sends a response message including the content delivery scheme, and receives the content that is delivered based on the content delivery scheme.

Abstract: A digital photographing apparatus is provided that reduces the number of instances in which an image including a subject having closed eyes is obtained. A method of controlling the apparatus and a computer readable medium having recorded thereon a program for executing the method are also provided. The apparatus includes an image capture device that generates data from light incident thereon, and a blink determination unit that determines whether eyes are closed in an image from the generated data. The blink determination unit performs the determination as to whether eyes are closed only on an image from first still image data obtained in response to a signal received from a user. If the blink determination unit determines that eyes are closed in an image from still image data generated by the image capture device, still image data is obtained again from light incident on the image capture device.

Abstract: A web control system for solar tracking includes one or more trackers, a communication port management unit, a status processing unit, a tracker control unit, a back tracking unit, a web server unit, and the memory unit. The trackers operate in compliance with driving commands and change the position of a solar cell panel in response to the tracking of the location of a sun. The communication port management unit is responsible for data transmission and reception. The status processing unit scans the status of the trackers. The tracker control unit directly controls the trackers. The back tracking unit analyzes the status information, and controls the tracker control unit. The local GUI interface unit displays a local or remote user screen. The web server unit provides the GUI data to a user. The memory unit stores the information.

Abstract: A light emitting diode package having heat dissipating slugs is provided. The light emitting diode package comprises first and second heat dissipating slugs formed of a conductive material and spaced apart from each other; a package main body coupled to the first and second heat dissipating slugs to support the first and second heat dissipating slugs; and a light emitting diode die electrically connected to the first and second heat dissipating slugs, wherein the respective first and second heat dissipating slugs are exposed to the outside through lower and side surfaces of the package main body. As such, the first and second heat dissipating slugs can be used as external leads.

Abstract: A wireless charging method includes synchronizing power phases of at least two charging power supply devices, and wirelessly charging a terminal using the at least two charging power supply devices.