摘要:
A wireless power transmission apparatus and method for wirelessly transmitting power to a wireless power reception apparatus electromagnetically coupled to the wireless power reception apparatus and supplying power for loads of the wireless power reception apparatus is provided. The apparatus includes a power generator for generating power having a fixed oscillation frequency; a power transmission resonator, which has a resonance frequency identical to the oscillation frequency, for wirelessly transmitting the power generated by the power generator to the wireless power reception apparatus; and a power transmission resonance frequency controller for controlling the resonance frequency of the power transmission resonator in response to a change of the resonance frequency of the power transmission resonator.
摘要:
A wireless charger of an inductive coupling type for charging a portable device provided with a rechargeable built-in battery having a second coil, includes a housing provided with a touch pad on one surface; a first coil retained within the housing; and a driving means for horizontally moving the first coil in a plane parallel to the one surface on which the touch pad is installed, wherein when the portable device is placed on the touch pad, the touch pad senses the position of the portable device to activate the driving means and displaces the first coil to a position facing the second coil.
摘要:
Disclosed is a method and apparatus for efficient wireless charging of a mobile terminal. The method includes detecting the mobile terminal by a charging apparatus, receiving a unique identifier of the mobile terminal from the mobile terminal and determining if the mobile terminal is a rechargeable device, when the mobile terminal is a rechargeable device, applying a direct voltage to a first coil of the charging apparatus and arranging the charging apparatus and the mobile terminal, and terminating an application of the direct voltage and then applying an alternating voltage, to supply charging power required for the mobile terminal.
摘要:
A wireless power transmission apparatus and method for wirelessly transmitting power to a wireless power reception apparatus electromagnetically coupled to the wireless power reception apparatus and supplying power for loads of the wireless power reception apparatus is provided. The apparatus includes a power generator for generating power having a fixed oscillation frequency; a power transmission resonator, which has a resonance frequency identical to the oscillation frequency, for wirelessly transmitting the power generated by the power generator to the wireless power reception apparatus; and a power transmission resonance frequency controller for controlling the resonance frequency of the power transmission resonator in response to a change of the resonance frequency of the power transmission resonator.
摘要:
Disclosed is a method and apparatus for efficient wireless charging of a mobile terminal. The method includes detecting the mobile terminal by a charging apparatus, receiving a unique identifier of the mobile terminal from the mobile terminal and determining if the mobile terminal is a rechargeable device, when the mobile terminal is a rechargeable device, applying a direct voltage to a first coil of the charging apparatus and arranging the charging apparatus and the mobile terminal, and terminating an application of the direct voltage and then applying an alternating voltage, to supply charging power required for the mobile terminal.
摘要:
A coil structure and a charging control method in a wireless charger having a primary coil are provided to supply an induced electromotive force suitable for a charging target having a secondary coil. Concentric coils having different radii are arranged in a wireless charger, and a coil suitable for the location of a charging target placed on the wireless charger is selected. An input power corresponding to the selected coil is determined, and the determined power is applied to the selected coil. Then the same charging efficiency can be provided irrespective of a location of a charging target placed on the wireless charger.
摘要:
A coil structure and a charging control method in a wireless charger having a primary coil are provided to supply an induced electromotive force suitable for a charging target having a secondary coil. Concentric coils having different radii are arranged in a wireless charger, and a coil suitable for the location of a charging target placed on the wireless charger is selected. An input power corresponding to the selected coil is determined, and the determined power is applied to the selected coil. Then the same charging efficiency can be provided irrespective of a location of a charging target placed on the wireless charger.
摘要:
A wireless power transmission controlling apparatus and method are provided. The apparatus includes a power amplifier that receives a source power, amplifies the received source power, and outputs a wireless power transmission signal from the amplified received source power, a band pass filter that filters the wireless power transmission signal, and passes a harmonic wave corresponding to a communication frequency band, and a communication unit that transmits a wireless power transmission control signal using the harmonic wave corresponding to the communication frequency band.
摘要:
An internal antenna is provided that includes a first antenna having a first antenna pattern formed on a first dielectric layer, and a second antenna having a second antenna pattern formed on a second dielectric layer. The second dielectric layer has a higher dielectric constant than the first dielectric layer. The first and second antenna patterns are electrically connected to each other.
摘要:
An internal antenna is provided that includes a first antenna having a first antenna pattern formed on a first dielectric layer, and a second antenna having a second antenna pattern formed on a second dielectric layer. The second dielectric layer has a higher dielectric constant than the first dielectric layer. The first and second antenna patterns are electrically connected to each other.