Wits Co., Ltd.

Samsung Electro-mechanics Co., Ltd.

Jae Hyoung Cho

Jae Suk Sung

Sang Beom Lee

Seung Won Park

Sang Ho Cho

Eun Young Shin

Yong Jong Park

Chang Ik Kim

Ki Won Chang

Dae Ki Lim

Yu Jin Lee

Si Hyung Kim

Hyung Wook Cho

Seung Hun Ryu

Jun Seung Yi

Dae Ung Ahn

Chul Gyun Park

Sang Hwan Cho

Dae Seong Jeon

Chang Soo Kang

Sung Uk Lee

Soon Tack Oh

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.

Double loop antenna

There are provided an 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.

Apparatus for transmitting power wirelessly

A coil module includes a substrate; an upper coil disposed on at least one surface of the substrate in an upper portion of the substrate; a lower coil disposed on at least one surface of the substrate in a lower portion of the substrate; and a lower outer pattern disposed on an outer side of the lower coil in the lower portion of the substrate and connected to either one or both of the upper coil and the lower coil.

Coil module including a upper coil, a lower coil, a lower outer pattern outside the lower coil, and a local area communications coil outside the lower coil

A coil assembly includes: a substrate; and a coil wiring coupled to the substrate and including a spiral wiring and a lead wiring, wherein the spiral wiring includes a first section forming an outer portion of the spiral wiring and a second section, disposed inside the first section, and having a line width narrower than a line width of the first section.

Coil assembly

An antenna device includes a first wiring may include a spiral shape forming an empty region therein, and a second wiring disposed inside or outside of the first wiring. The second wiring is disposed to be spaced apart from the first wiring, and includes a first ring-shaped wiring and a second ring-shaped wiring, which are concentric to each other.

Antenna device and portable terminal including the same

A wireless power transmitter includes a sensor configured to sense an object, a power transmitter configured to wirelessly transmit power to a wireless power receiver, and a controller configured to determine whether the object is the wireless power receiver, and control the power transmitter to wirelessly transmit power to the wireless power receiver upon the object being determined to be the wireless power receiver, wherein the sensor and the power transmitter comprise separate coils.

Wireless power transmitter and wireless power transmission method

A wireless power transmitting method performed in a wireless power transmitting apparatus wirelessly transmitting power includes determining reception strength of a short-range wireless communication channel, adjusting an interval of a short beacon signal in response to a change in reception strength; and transmitting the short beacon signal at the interval.

Wireless power transmitting apparatus and method

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.

A wireless charger optimized for charging efficiency of portable terminals (e.g., mobile phones) of different sizes has a housing including within it laterally spaced side supports and a bottom support for cradling an inserted portable terminal. The side supports and the bottom support are interlocked for coordinated movement such that the bottom support is moved by a predetermined amount according to movements of the side supports. This arrangement optimizes relative placement of the charger's transmitting coil and the portable terminal's receiving coil.

Apparatus for wireless charging

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.

Growing community of inventors

Suwon-si, South Korea

Jae Hyoung Cho