公开(公告)号：US20180159371A1

公开(公告)日：2018-06-07

申请号：US15830416

申请日：2017-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyoung-Won KIM ,  Dong-Zo KIM ,  Se-Ho PARK ,  Kwang-Seob KIM ,  Chang-Hak O ,  Ju-Hyang LEE ,  Hyung-Koo CHUNG ,  Se-Hyun CHO

IPC: H02J50/10 ,  H02J7/02

CPC classification number: H02J50/10 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80

Abstract: A method and electronic device for performing wireless charging are provided. The electronic device includes a housing, a conductive coil, a power transmission circuit electrically connected to the conductive coil, and configured to wirelessly transmit power to an outside of the housing through the conductive coil, a voltage source electrically connected to the power transmission circuit, and a control circuit electrically connected between the power transmission circuit and the voltage source. The control circuit is configured to change power radiated through the conductive coil, monitor a frequency of a signal and/or electromagnetic waves radiated through the conductive coil, and adjust a level of a voltage from the voltage source based on at least a part of a monitored result of the frequency.

公开(公告)号：US20200313467A1

公开(公告)日：2020-10-01

申请号：US16901929

申请日：2020-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chong-Min LEE ,  Yu-Su KIM ,  Hyung-Koo CHUNG ,  Hyo-Seok HAN

IPC: H02J50/70 ,  H05K1/02 ,  H02J50/12 ,  H02J50/40

Abstract: A wireless power receiver for wirelessly receiving power from a wireless power transmitter comprises: a power reception circuit receiving electromagnetic waves emitted from the wireless power receiver so as to output power having an alternating current waveform; a rectifier for rectifying the power, having an AC waveform, outputted from the power reception circuit into power having a direct current waveform; a DC/DC converter for converting, into a voltage of a preset level, a voltage of the power having a direct current waveform, the power being rectified by the rectifier; a charger for charging a battery by using the power having a DC waveform, converted from the DC/DC converter; an alternating current ground connected to the power reception circuit and/or the rectifier so as to receive at least a portion of the power having an alternating current waveform; and a direct current ground connected to the DC/DC converter and/or the charger so as to receive at least a portion of the power having a direct current waveform, wherein the alternating current ground and the direct current ground can be disposed on different PCB layers, respectively.

公开(公告)号：US20170085132A1

公开(公告)日：2017-03-23

申请号：US15137591

申请日：2016-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sung-Ku YEO ,  Do-Won KIM ,  Dong-Zo KIM ,  Bong-Chul KIM ,  Hyung-Koo CHUNG

IPC: H02J50/12 ,  H02J50/70 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/70 ,  H02J50/80

Abstract: A wireless power transmitting apparatus wirelessly charging a wireless power receiving apparatus is provided. The wireless power transmitting apparatus includes a power providing unit configured to provide power, a gate driver configured to generate a differential signal formed of a first signal and a second signal from the power provided from the power providing unit, an amplifier configured to amplify the differential signal by a predetermined gain, a power transmitting unit configured to transmit the amplified differential signal to the wireless power receiving apparatus, and a differential signal correcting circuit that is disposed between the gate driver and the amplifier and is configured to correct the differential signal so that a predetermined phase difference between the first signal and the second signal is maintained.

公开(公告)号：US20170070104A1

公开(公告)日：2017-03-09

申请号：US15230680

申请日：2016-08-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyung-Koo CHUNG ,  Sung-Ku YEO ,  Ki-Young KIM

IPC: H02J50/80 ,  H02J50/12 ,  H02J7/02

CPC classification number: H02J50/80 ,  H02J7/025 ,  H02J50/10 ,  H02J50/40

Abstract: A wireless power transmitter for charging a wireless power receiver is provided. The wireless power transmitter includes a power transmission unit configured to transmit power for charging the wireless power receiver, by using a current applied to the power transmission unit, a communication module configured to receive out-of-band communication signal from the wireless power receiver and a controller configured to apply the current to the power transmission unit to transmit power in response to receiving the out-of-band communication signal from the wireless power receiver.

Abstract translation: 提供一种用于对无线电力接收器进行充电的无线电力发射器。 所述无线电力发射机包括：功率传输单元，被配置为通过使用施加到所述电力传输单元的电流来发送用于对所述无线电力接收器进行充电的电力;通信模块，被配置为从所述无线电力接收器接收带外通信信号;以及 控制器，被配置为响应于从无线电力接收器接收到带外通信信号，将电流施加到电力传输单元以发送功率。