Abstract: An antenna module includes a coil part including a second antenna wiring formed on an insulating substrate in a spiral shape and a first antenna wiring disposed in an internal region of the second antenna wiring, and a magnetic part including a first magnetic part disposed in the internal region of a first surface of the insulating substrate and a second magnetic part disposed on a second surface of the insulating substrate.

Abstract: A wireless communication antenna includes a solenoid coil portion including a core; and a magnetic body disposed in the core and comprising magnetic pieces arranged side by side in a direction perpendicular to or a direction parallel to a direction of a magnetic flux of the coil portion.

Abstract: A coil module including a magnetic body having a first body portion extended in a first axial direction and a second body portion extended in a second axial direction different from the first axial direction; and a transmitting coil including a first coil wound around a portion of the first body portion and a second coil wound around a portion of the second body portion.

Abstract: An antenna module includes: a coil part including an antenna wiring disposed on an insulating substrate; a first magnetic part disposed on a first surface of the insulating substrate; and a second magnetic part disposed on a second surface of the insulating substrate, wherein the first magnetic part and the second magnetic part overlap with each other on a center region of the antenna wiring.

Abstract: An information transmitter includes a transmitting coil configured to receive a coil voltage to generate a magnetic field; and a signal generator configured to receive a direct current (DC) voltage and operating switches to apply the coil voltage to the transmitting coil, for a first time constant in a first current path, wherein the coil voltage includes a first value, and for a second time constant in a second current path, wherein the coil voltage includes a second value smaller than the first value, and wherein the first time constant and second time constant are different from each other.

Abstract: A wireless communication antenna comprises a magnetic body and coil portions. The coil portions have a solenoid shape formed around the magnetic body defining a core. The coil portions are spaced apart from each other and connected to each other in series. Magnetic fields radiated by the coil portions overlap each other and each of the coil portions comprises: a first wiring portion disposed on a first surface of the magnetic body; a second wiring portion disposed on a second surface of the magnetic body; and conductive vias interconnecting the first wiring portion and the second wiring portion.

Abstract: A device for transmitting data includes a transmitting coil configured to receive and transmit the data signal and to generate a magnetic field, and a magnetic material provided on one surface of the transmitting coil. A ratio of a residual magnetic flux density and a saturation magnetic flux density of the magnetic material is greater in a direction that the material is magnetized than in a direction the material is not magnetized.

Abstract: A device for transmitting data includes a transmitting coil configured to receive and transmit the data signal and to generate a magnetic field, and a magnetic material provided on one surface of the transmitting coil. A ratio of a residual magnetic flux density and a saturation magnetic flux density of the magnetic material is greater in a direction that the material is magnetized than in a direction the material is not magnetized.

Abstract: A coil assembly includes a coil part including stamped coils, and a connection substrate having one end thereof disposed inside the coil part and the other end disposed outside the coil part, wherein one end of each of the stamped coils is connected to a first surface of the connection substrate and the other end connected to a second surface of the connection substrate.

Abstract: A coil device includes a board, a first pattern formed on one surface of the board, and a second pattern formed on the other surface of the board. At least one pattern via electrically connects the first pattern and the second pattern to each other. A via region, corresponding to a region in which the pattern via is formed in the first pattern, includes n first conducting wires (where n is a natural number of 1 or more). At least a portion of the first pattern, excluding the via region in the first pattern, includes m first conducting wires (where m is greater than n and is a natural number of 2 or more).

Abstract: A cover and an electronic device are described including the same. The cover includes a center area, a slit, and an inductance part. The center area is disposed on a plate of the cover. The slit is connected to the center area. The inductance part surrounds the center area defined by the slit.

Abstract: There are provided a coil device and an apparatus including the same. The coil device includes a first coil and a second coil. The first coil is configured to receive a first signal using a first magnetic field formed in a first direction. The second coil includes a shape different from the first coil and is configured to form a second magnetic field in a second direction, different from the first direction, to transmit a second signal, different from the first signal.

Abstract: There are provided an information transmitter and an apparatus including the same. The information transmitter includes a signal generator configured to output an information signal including pulses changed from a first state to a second state or a third state and subsequently changed from the second state or the third state to the first state. A time period in which some of the pulses are changed from the first state to the second state or the third state may be shorter than a time period in which some of the pulses are changed from the second state or the third state to the first state. The information transmitter also includes a transmitting coil configured to receive the information signal and generate a magnetic field based on the information signal.

Abstract: A coil assembly includes a coil part including stamped coils, and a connection substrate having one end thereof disposed inside the coil part and the other end disposed outside the coil part, wherein one end of each of the stamped coils is connected to a first surface of the connection substrate and the other end connected to a second surface of the connection substrate.

Abstract: A composite wireless transmitter coil includes a first coil; and a second coil spaced apart from the first coil, wherein the first coil and the second coil form a first magnetic field, and a magnetic line of force of the first magnetic field has a closed loop shape that passes through a region of the first coil and a region of the second coil.

Abstract: A cover of a portable terminal, the cover includes a conductive layer having conductive tiles formed in a region corresponding to a coil, and a protective layer disposed on a surface of the conductive layer.

Abstract: A conductive plate and an electronic device including the same are provided. A conductive plate to be included in a terminal and disposed on a side of a coil substrate for wireless charging the terminal includes metal members each having a plate shape and an insulating layer disposed on a surface of at least one of the metal members to insulate the metal members from each other, wherein the metal members are coupled to each other to complete a flat plate shape.

Abstract: The object of the present invention is to provide an LED driver capable of improving the stability by supplying the uniform current and widening the application range and a display device using the same. The present invention provides an LED driver, which includes a power supply unit for supplying a driving current to a channel including a plurality of LEDs connected to each other in series or in parallel and a capacitor provided with a first electrode which is connected to an output terminal of the power supply unit and the channel and a second electrode which is connected to a ground, and a display device using the same.

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: A coil component may include: a base board having an accommodation portion disposed therein and having conductive patterns disposed within the accommodation portion; an annular core disposed in the accommodation portion; and a laminated board laminated on the base board and having conductive patterns disposed on one surface thereof. The conductive patterns of the laminated board are connected to the conductive patterns of the base board to form a coil.