Samsung Electronics Co., Ltd.

Sungkyunkwan University

Kanaph Therapeutics Inc.

Dongsu Kim

Junsuk Bang

Younghwan Choo

Takahiro Nomiyama

Yongsik Youn

Ji Seon Paek

Hyungkoun Cho

Youngho Jung

Eunji Kim

Joosung Kim

Jiseon Paek

Dohyun Park

Kangwoo Lee

Mijung Lee

Youngbeen Kim

Jieun Min

Sung Hyeon Jung

Sungyoub Jung

Jinhwan Kim

Miyeon Kim

Youngdae Yun

Eu Ddeum Chung

Sungpil Choi

Kyeongjin Yoon

Dahye Jeon

Jakyung Yoo

Kyungik Lee

Sang Kyun Lim

Soyeon Jang

The present disclosure relates to a semipermeable membrane for water treatment, including a photoactive layer. The photoactive layer includes a plurality of one-dimensional nano structure bundles and the one-dimensional nano structure is nano-structured so that a surface of the semipermeable membrane for water treatment has a hydrophobicity.

Semipermeable membrane for water treatment, preparing method for the same, and polluted water treatment system including the same

A supply modulator including a multiple output voltage regulator (MOVR) configured to output voltages in a discrete level-envelope tracking mode (DLETM) having different levels from each other respectively corresponding to reference output voltage signals, a switching regulator configured to output a switching regulator voltage, an output voltage being based on the switching regulator voltage and a selected voltage among the voltages in the DLETM and based on the switching regulator voltage in an average power tracking mode, a switching regulator controller configured to sense an output current of the MOVR to obtain a sensing value, and control the switching regulator based on the sensing value in the DLETM, a switch array comprising switches respectively corresponding to the voltages and configured to selectively connect the selected voltage to a power amplifier by performing a switching operation, and a switch controller configured to control the switching operation.

Supply modulator and wireless communication apparatus including the same

A supply modulator includes a multi-level voltage generator configured to generate a plurality of power voltages having different voltage levels; a switch array including a plurality of switches respectively corresponding to the plurality of power voltages, and outputting one of the plurality of power voltages by activating connection of one of the plurality of switches; and a switch controller configured to control connection of each of the plurality of switches and activate connection of at least one third switch distinguished from a first switch and a second switch in response to receiving a level control signal switching the connection from the first switch to the second switch during a time period corresponding to a frequency to be attenuated between disconnecting the first switch and connecting the second switch.

Supply modulator providing multi-level supply voltage and operating method thereof

The present invention relates to an inhibitor of SHP2, a pharmaceutical composition for preventing or treating a disease related to SHP2 comprising the same, a method for treating and preventing a disease using the same, and a use thereof. Accordingly, the present invention can effectively prevent or treat diseases related to SHP2.

SHP2 inhibitor and use thereof

Provided are a supply modulator and a wireless communication apparatus including the same. A supply modulator according to the inventive concept is driven in any one of an average power tracking mode and a discrete level envelope tracking mode to apply an output voltage to a power amplifier, and includes a multiple output voltage balancer, a switching regulator, a switching regulator controller, a switch array, a discrete-level controller, a switch controller, an output filter, and a main controller.

A supply modulator includes a linear regulator that generates an output voltage in an envelope tracking mode. A switching regulator operates with the linear regulator to generate the output voltage in the envelope tracking mode and to selectively generate the output voltage in an average power tracking mode. A single inductor multiple output converter operates selectively with the switching regulator to generate the output voltage in the average power tracking mode, operates to provide a power supply voltage to the linear regulator in the envelope tracking mode, and includes a first capacitor connected with a power supply terminal of the linear regulator and a second capacitor selectively connected with an output terminal of the linear regulator through a first switch. A main controller decides a tracking mode to be executed by the supply modulator.

According to some example embodiments, an apparatus includes a buck-boost converter, a first buck converter connected at an output terminal of the buck-boost converter, a second buck converter connected at the output terminal of the buck-boost converter, a first LA including a first supply voltage input connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the first buck converter, where the first LA is configured to provide a first modulated supply voltage to a first PA of a first transmitter, and a second LA including a second supply voltage input connected to the output terminal of the buck-boost converter, and an output terminal connected to an output terminal of the second buck converter, where the second LA is configured to provide a second modulated supply voltage to a second PA of a second transmitter.

Supply modulator for power amplifier

A method of manufacturing an oxide semiconductor, includes impregnating a substrate in a solution containing a metal precursor and hydroxyl ions, and forming a metal oxide on the substrate by applying a voltage to the solution. The solution includes a surfactant, and the direction of crystal growth of the metal oxide is controllable based on the surfactant.

Method of manufacturing oxide semiconductor

A communication circuit, including a first supply modulator configured to provide a first supply voltage; a first power amplifier configured to generate a first output signal by amplifying a first input signal corresponding to a first operation frequency band; a second power amplifier configured to generate a second output signal by amplifying a second input signal corresponding to a second operation frequency band; and a switching circuit configured to selectively provide the first supply voltage from the first supply modulator to the second power amplifier based on a first switching signal according to an operation mode.

Supply modulating circuit including switching circuit and wireless communication device including the supply modulating circuit

A transmitting device including: a modem configured to generate a baseband signal and an envelope data corresponding to the baseband signal; a supply modulator including a first switched-mode power supplier and a second switched-mode power supplier, the supply modulator configured to provide a modulated voltage to an output node based on the envelope data; and a power amplifier configured to amplify a carrier wave signal by using the modulated voltages, the carrier wave signal being associated with the baseband signal, wherein the first switched-mode power supplier includes: a pulse input node to receive a pulse signal generated in association with the envelope data; and a plurality of stages sequentially connected between the pulse input node and the output node, the plurality of stages configured to adjust the modulated voltage by filtering certain frequency band of the pulse signal, and the plurality of stages includes at least one variable impedance.

Supply modulator including switched-mode power supplier and transmitting device including the same

A supply modulator including a first switched-mode power supplier configured to transmit a modulated voltage to an output node in response to an envelope signal, the first switched mode power supplier including: a switching circuit configured to transmit a pulse signal in response to the amplitude of the envelope signal; and a low pass filter configured to generate the modulated voltage by filtering certain frequency band of the pulse signal, the low pass filter comprising a plurality of stages; and a second switched-mode power supplier configured to selectively transmit a compensation current to the output node in response to the current transmitted from the first switched-mode power supplier, wherein each of the plurality of stages of the low pass filter comprises at least one variable impedances.

Growing community of inventors

Suwon-si, South Korea

Dongsu Kim