摘要:
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.
摘要:
Methods and apparatuses are provided for method is provided for controlling power transmission in a power transmitter. Voltage information required by a plurality of power receivers is received from the plurality of power receivers. The voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage. Power is transmitted to the plurality of power receivers. A report about a power reception condition while transmitting the power is received from the plurality of power receivers. The report includes a measured voltage at the plurality of power receivers. One of the plurality of power receivers is selected. An amount of the power is adjusted by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver.
摘要:
An apparatus and method are provided for transmitting and receiving power for wireless power transmission. A power transmitting apparatus includes a power supplier for generating power; a resonator for transmitting the power generated by the power supplier to a plurality of power receiving apparatuses; and a controller for determining whether a power transmission to a new power receiving apparatus is possible using a power receiving apparatus management table, when the new power receiving apparatus is detected while the power transmissions of the plurality of power receiving apparatuses are being performed, and controlling the resonator to transmit power to the new power receiving apparatus, when the power transmission to the new receiving apparatus is possible. The power transmitting apparatus stably supplies power to a plurality of power receiving apparatuses by determining power transmission states of the plurality of power receiving apparatuses.
摘要:
A wireless power transmission apparatus includes a wireless power transmitter for wirelessly transmitting power to at least one wireless power receiver by magnetic resonance coupling; and a master wireless power receiver that is wire-connected to the wireless power transmitter for communication, and performs peer-to-peer wireless communication with the at least one wireless power receiver. A resonant frequency used for the peer-to-peer wireless communication between the master wireless power receiver and the at least one wireless power receiver is identical to a resonant frequency used for the wireless power transmission between the wireless power transmitter and the at least one wireless power receiver.
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:
Provided is a blood plasma separator for separating blood plasma and blood cells from whole blood without an additional complicated structure by passing the whole blood through a micro channel having a predetermined shape to make the whole blood flow turbulently and cause a velocity difference or deflection between flows of the blood plasma and the blood cells of the whole blood, and a blood plasma separation method thereof. The blood plasma separator includes: a body; a micro channel formed in the body to allow blood to pass therethrough; a separation member formed at the micro channel to make flow of blood cells or blood plasma turbulent to separate the blood cells from the blood plasma; an inlet connected to the micro channel and configured to introduce blood into the micro channel; and an outlet connected to the micro channel and configured to discharge blood from the micro channel.
摘要:
A cassette transfer apparatus includes a holding unit configured to hold a cassette having a wafer loaded therein, the cassette having at least one stepped part, and the holding unit including at least one holding part configured to have the at least one stepped part placed thereon. The at least one stepped part includes a pair of stepped parts provided at opposite surfaces of the cassette, and the at least one holding part includes a pair of holding parts that extends back and forth and is configured to have the pair of stepped parts placed thereon.
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:
A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
摘要:
A rechargeable lithium battery including: a negative electrode having a composite negative active material of a metal and a carbonaceous material; a positive electrode having a mixed positive active material of about 90 to 99 wt % of a first positive active material selected from cobalt, manganese, phosphate acid-based, or combinations thereof and about 1 to about 10 wt % of a nickel-based second positive active material; and a non-aqueous electrolyte.