公开(公告)号：US11183885B2

公开(公告)日：2021-11-23

申请号：US15590100

申请日：2017-05-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chong-Min Lee ,  Sung-Bum Park ,  Jae-Hyun Park ,  Young-Ho Ryu ,  Kyung-Woo Lee

IPC: H02J50/20 ,  H02J50/23 ,  H02J50/10 ,  H02J7/02 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q9/04 ,  H01Q21/06

Abstract: Disclosed are a wireless power transmission device and a control method thereof. The wireless power transmission device includes a communication circuit that receives information transmitted by an electronic device that receives wireless power; an array antenna including multiple cells that radiate wireless power; and a controller that receives the information transmitted by the electronic device through the communication circuit, combines cells of the multiple cells included in the array antenna based on the information and creates a group of cells corresponding to the electronic device, and controls the cells included in the group to radiate the wireless power towards the electronic device.

公开(公告)号：US11133706B2

公开(公告)日：2021-09-28

申请号：US15744487

申请日：2016-07-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keum-Su Song ,  Do-Won Kim ,  Jae-Hyun Park ,  Sung-Ku Yeo ,  Young-Ho Ryu

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/00 ,  H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H02J50/12 ,  H02J7/02

Abstract: A wireless power transmitter is disclosed. The wireless power transmitter may include a first coil for generating a first magnetic field of a first direction in order to charge a first wireless power receiver which is disposed in a first posture on the wireless power transmitter, and a second coil for generating a second magnetic field of a second direction in order to charge a second wireless power receiver which is disposed in a second posture on the wireless power transmitter.

公开(公告)号：US11101695B2

公开(公告)日：2021-08-24

申请号：US15965274

申请日：2018-04-27

Applicant: Samsung Electronics Co., Ltd. ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Sung-Ku Yeo ,  Sang-Yun Kim ,  Jae-Seok Park ,  Young-Ho Ryu ,  Kang-Yoon Lee ,  Hamed Abbasizadeh ,  Sang-Wook Kwon ,  Thi Kim Nga Truong ,  Dong-In Kim ,  Sung-Bum Park ,  Dong-Soo Lee ,  Seung Il Huh

IPC: H02J7/00 ,  H02J7/14 ,  H02J50/12 ,  H02J50/70 ,  H02J7/02 ,  H02M7/217 ,  H02J50/20

Abstract: An electronic device is provided. The electronic device includes a receiving circuit configured to wirelessly receive power and output AC power, a rectifying circuit configured to rectify the AC power from the receiving circuit, wherein the rectifying circuit may include a first P-MOSFET configured to transfer a positive amplitude of power to an output terminal of the rectifying circuit while the AC power has the positive amplitude and to prevent transferring a negative amplitude of power to the output terminal of the rectifying circuit while the AC power has the negative amplitude, and a forward loss compensating circuit connected with the first P-MOSFET configured to reduce a threshold voltage of the first P-MOSFET while the AC power has the positive amplitude.

公开(公告)号：US10938241B2

公开(公告)日：2021-03-02

申请号：US15950828

申请日：2018-04-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jae-Seok Park ,  Young-Ho Ryu ,  Chang-hyun Kim ,  Myung-ho Kim ,  Woong-Il Choi

IPC: H02J50/12 ,  H04N21/472 ,  H02J50/60 ,  H04N21/443

Abstract: A wireless power transmitting device according to an embodiment may include a power transmission circuit and a processor. The processor may be configured to control the power transmission circuit to wirelessly transmit power to a first area around the wireless power transmitting device, perform a predetermined first operation when an obstacle is detected in a second area around the first area, and perform a predetermined second operation when it is detected that the obstacle has entered the first area.