Abstract: A wireless switch includes: an adjusting member configured to rotate; a rotary plate comprising a first extending bar extending from a surface of the rotary plate in a radial direction and configured to be rotated together with the adjusting member; a first deformation member configured to be deformed by the first extending bar when the rotary plate rotates to cause the first extending bar to contact the first deformation member; a first piezoelectric element disposed on the first deformation member and configured to generate electricity when the first deformation member is deformed; and a radio frequency (RF) communications module unit configured to transmit a signal according to the electricity generated by the first piezoelectric element.

Abstract: A double loop antenna includes a source loop comprising: a spiral-shaped conductive source coil pattern disposed on a top surface of a board, and a source capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and a bottom surface of the board; and a resonance loop comprising: a spiral-shaped conductive resonance coil pattern disposed on the bottom surface of the board, and a resonance capacitor pattern comprising symmetrical conductive patterns disposed on the top surface and the bottom surface of the board, wherein the source coil pattern and the resonance coil pattern are formed on different surfaces of the board.

Abstract: There are provided an apparatus apparatus for transmitting power wirelessly. The apparatus for transmitting power wirelessly may include a boosting unit boosting an input voltage, and an inverter unit inverting the boosted voltage output from the boosting unit to transmit power wirelessly. The inverter unit and the boosting unit are controlled by the same switching element.

Abstract: A non-contact type power receiving apparatus, of which a voltage level of output power varies depending on a rated voltage of a battery, includes: a power receiving coil unit receiving a power in a non-contact scheme; a rectifying/multiplying unit rectifying the received power depending on controlling thereof and selectively multiplying a voltage level of the rectified power; and a controller selectively controlling a rectifying operation or a multiplying operation of the rectifying/multiplying unit to be performed depending on a selection signal.

Abstract: A non-contact type power transmitting coil may include at least one conductor pattern disposed on at least one surface of a base having a predetermined area, having a plurality of turns, and transmitting received power externally in a non-contact manner. The intervals between at least some of adjacent pattern portions of the conductor pattern in a direction from a center portion of an inner diameter of the conductor pattern to an outermost pattern portion conductor pattern may be different from one another.

Abstract: A non-contact type power transmission apparatus and method thereof, includes a control unit configured to provide assigned location information to a device. The apparatus also includes a display unit configured to display location-based service data provided to the device based on the location information.

Abstract: A wireless power transmitter includes: a switching unit configured to receive a direct current (DC) voltage and to perform switching to output a first alternating current (AC) voltage; a piezoelectric transformer configured to receive the first AC voltage through a first piezoelectric element, and to output a second AC voltage corresponding to mechanical vibration of a second piezoelectric element caused by mechanical vibration of the first piezoelectric element; and a resonator configured to receive the second AC voltage to wirelessly transmit power.

Abstract: A wireless power transmitter according to an exemplary embodiment in the present disclosure may include a transmitting core; a transmitting coil provided on the transmitting core and transmitting power wirelessly; and a magnetic body provided on the transmitting core and allowing a virtual line which is normal to a surface of the magnetic body to form an acute angle with the transmitting core.

Abstract: There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one surface of the substrate includes at least one gyration path that passes through the other surface of the substrate and gyrates.

Abstract: There are provided a thin film coil and an electronic device having the same, the thin film coil including a substrate; and a coil pattern including a first coil strand and a second coil strand formed on both surfaces of the substrate, respectively, wherein the first coil strand formed on one surface of the substrate includes at least one gyration path that passes through the other surface of the substrate and gyrates.

Abstract: A wireless power receiver according to an exemplary embodiment in the present disclosure may include a resonant tank receiving a power signal and varying a resonant frequency in response to a control signal; and a determining unit determining a wireless power transmission mode on the basis of the power signal and outputting the control signal depending on a determination result.

Abstract: There is provided a wireless charging system, including: a wireless power transmitting module including at least one power transmitter transmitting power and at least one wireless power receiving module receiving the power, wherein the wireless power transmitting module controls the power, which is transmitted to the wireless power receiving modules corresponding to the power transmitters, from the power transmitters, depending on targeted voltage gains of the wireless power receiving modules corresponding to the power transmitters.

Abstract: A wireless power transmitter is electromagnetically coupleable to a receiving coil of a wireless power receiver to provide power wirelessly and includes a substantially planar transmitting core. A transmitting coil has a plurality of windings and is disposed on a surface of the transmitting core. The transmitting core may extend beyond the transmitting coil in a planar direction.

Abstract: A coil module includes a substrate; a wireless charging coil formed in a substantially central portion of the substrate positioned on both surfaces of the substrate; and a first wireless communications coil which does not directly contact the wireless charging coil and is formed in the substantially central portion of the substrate on both surfaces of the substrate, wherein, in a region of the substrate in which the wireless charging coil and the first wireless communications coil are overlapped with each other, the wireless charging coil is formed on one surface of the region and the first wireless communications coil is formed on the other surface of the region, respectively.

Abstract: An antenna pattern frame according to an aspect of the invention may include: a radiator having an antenna pattern portion transmitting and receiving a signal and a connection terminal portion allowing the signal to be transmitted to and received from a circuit board of an electronic device; a connection portion partially forming the radiator and connecting the antenna pattern portion and the connection terminal portion to be arranged in different planes; and a radiator frame manufactured by injection molding on the radiator so that the antenna pattern portion is provided on one side of the radiator frame and the connection terminal portion is provided on the other side thereof while the antenna pattern portion is embedded in the electronic device case.

Abstract: A method of controlling a wireless power transmitter includes actuating the wireless power transmitter to transmit a beacon signal, determining approach of an external object according to a detected change in the beacon signal, and transmitting ping signals having different frequencies responsive to the determined approach of the external object.

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: 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: A non-contact type power charging apparatus and a non-contact type battery apparatus may transmit power to each of a plurality of battery cells in a capacitive coupling scheme. The non-contact type power charging apparatus may include a power transmitting apparatus transmitting power in a capacitive coupling scheme, and a power receiving apparatus receiving the power transmitted from the power transmitting apparatus to charge each of a plurality of battery cells with the power. The non-contact type battery apparatus may include a plurality of power receiving electrodes each receiving power transmitted in a capacitive coupling scheme, and a plurality of battery cells each charged with the power transmitted to the plurality of power receiving electrodes.

Abstract: A wireless power transmission apparatus includes a resonator configured to be magnetically coupleable to a wireless power reception apparatus; an inverter configured to operate the resonator; and a resonant frequency controller configured to control a resonant frequency of the resonator in response to a change in operating frequency of the inverter.