Samsung Electro-mechanics Co., Ltd.

Wits Co., Ltd.

Se Joo Kim

Young Woon Choi

Hyung Joon Kim

In Wha Jeong

Byoung Woo Ryu

Hyo Young Kim

Han Kyung Bae

Tae Seok Ko

Jung Woo Choi

Ki Hong Kim

Sang Ho Cho

Ki Young Lee

Tae Ho Yun

Young Seung Roh

Sung Tai Jung

Guen Hong Lee

Joung Ho Son

Dong Woo Han

Jung Kyu Yim

Jin Wook Baek

Doo Young Song

Hae Jun Yang

A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.

Wireless power transmitter with data communication provision

A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.

Wireless power transmission apparatus

A wireless power transmission device including a resonant circuit magnetically coupled to a wireless power reception device and being configured to wirelessly transmit power, an alternating current (AC) generator including switches and being configured to receive a direct current (DC) voltage and to generate an AC current, according to a switching operation of the switches, to be supplied to the resonant circuit, and a variable capacitor connected to an output terminal of the AC generator and having a first capacitance, when a load state of the wireless power reception device is provided as a full load state and a second capacitance lower than the first capacitance, when the load state is provided as a light load state.

Wireless power transmission device and method of controlling the same

A wireless power transmitter includes a switch circuit including switches connected to a transmission resonator; a current detector configured to detect a transient current induced in the transmission resonator; and a controller configured to control the switch circuit and adjust an output of the wireless power transmitter based on an amplitude of the transient current.

Wireless power transmitter and method of controlling the same

A wireless power transmitter includes a common bridge circuit configured to apply a first alternating current (AC) voltage to a terminal of each of a first resonator and a second resonator of the resonators, a first sub-bridge circuit configured to apply a second alternating current (AC) voltage to another terminal of the first resonator while the first alternating current (AC) voltage is being applied to the terminal of the first resonator, and a second sub-bridge circuit configured to apply a third alternating current (AC) voltage to another terminal of the second resonator while the first alternating current (AC) voltage is being applied to the terminal of the first resonator.

Wireless power transmitter and method for controlling the same

Disclosed herein are a switching control apparatus for a two phase switch reluctance motor and a control method using the same. The switching control apparatus includes a rectifier; and an active converter including a pair of common switches, a pair of first phase switches, a pair of serially connected second phase switches, a plurality of current feedback diodes each connected to the switches, and a pair of drivers controlling the switches and operated as operation modes 1 to 3 to provide the commercial power provided from the rectifier to the two phase SRM and drive the two phase SRMs.

Switching control apparatus for two phase switched reluctance motor and method thereof

Disclosed herein is a switched reluctance motor including: a rotor part including a rotor core having a shaft fixedly coupled to the center thereof and a plurality of rotor poles formed to be protruded from the rotor core; a stator part having the rotor part rotatably received therein and a plurality of stator salient poles formed to be protruded from the stator yoke; a balancing part selectively coupled to an upper portion or a lower portion of the rotor part and having a plurality of sensing grooves formed in an outer peripheral surface thereof; a motor housing provided with an opening part through which the shaft penetrates; and a position detecting unit disposed between the rotor part and the stator part and coupled to an inner portion of the motor housing.

Switched reluctance motor

Disclosed herein is a switched reluctance motor including: a salient pole type stator that includes a plurality of teeth having a coil wound therearound and a magnet mounted between the teeth; and a salient pole type rotor that is inserted into a central portion of the stator and rotates, wherein the magnet is mounted between the teeth having the coil wound therearound.

Growing community of inventors

Suwon-si, South Korea

Se Joo Kim