Abstract:
A leakage power processing method of an electronic device including a first conductive pattern that sends and receives a communication signal associated with a communication function, a second conductive pattern that is arranged adjacent to the first conductive pattern and sends and receives a power signal used for charging, and a communication hardware interface electrically connected with the first conductive pattern is provided. The leakage power processing method includes determining, by a processor of an electronic device, whether a specific power signal is induced through the second conductive pattern and forming, by the processor of the electronic device, a closed loop including the first conductive pattern if the specific power signal of a specific magnitude or greater is induced.
Abstract:
A power transmitting unit (PTU) transmits a power wirelessly based on a location of a power receiving unit (PRU). The PTU determines whether the PRU is located within a charging area of the PTU based on frequency information corresponding to an inflection point detected on a curve of electrical characteristics of a resonator of the PTU.
Abstract:
An apparatus configured to transceive wireless power, includes a magnetostrictive resonator configured to be excited by a magnetic field, and a soft magnetic material disposed in a vicinity of the magnetostrictive resonator. The apparatus further includes a transducing coil disposed in a vicinity of the magnetostrictive resonator or the soft magnetic material, and configured to convert mechanical energy generated by the excitation of the magnetostrictive resonator to electric energy.
Abstract:
An apparatus and a method for wireless power reception include converting a received wireless power to a wireless power for charging using a synchronous rectifier and a direct current/direct current (DC/DC) converter having a structure providing a high efficiency and low heat generation even when a high charging current is supplied.
Abstract:
An apparatus and a method for receiving power wirelessly, and an apparatus and a method for transmitting power wirelessly are provided. The apparatus for transmitting power wirelessly includes: a source resonator configured to transmit power wirelessly to a target resonator through a mutual resonance with the target resonator; a power supply unit configured to supply power to the source resonator; and a matching unit configured to connect a passive device to the power supply unit in series or in parallel to match an output impedance of the power supply unit and an input impedance of the source resonator.
Abstract:
An apparatus and a method for wirelessly receiving power, and an apparatus and a method for wirelessly transmitting power, are provided. A wireless power receiver includes a receiving unit configured to wirelessly receive a power, and a controller configured to control a length of a clock signal based on the power. The wireless power receiver further includes a modulator configured to change an impedance based on the length of the clock signal to perform load modulation.
Abstract:
A leakage magnetic field shielding apparatus includes a resonator configured to counterbalance a leakage magnetic field generated when a source resonator and a target resonator resonate at a resonant frequency of the source resonator and the target resonator.
Abstract:
A wireless charging apparatus includes a charging unit configured to transmit power wirelessly to a mobile device, and a power supply unit configured to supply power to the charging unit. The wireless charging apparatus further includes a connecting unit configured to connect the charging unit to the power supply unit such that a position and an angle of the charging unit are adjustable.
Abstract:
An apparatus and a method for wireless power reception include converting a received wireless power to a wireless power for charging using a synchronous rectifier and a direct current/direct current (DC/DC) converter having a structure providing a high efficiency and low heat generation even when a high charging current is supplied.
Abstract:
A planar spiral induction coil includes a strip-shaped coil having at least one turn. The at least one turn has a width that changes as a distance from a beginning of the strip-shaped increases in a length direction of the strip-shaped coil. each turn of the at least one turn has a respective width that causes an equal current to flow through each turn of the at least one turn.