公开(公告)号：US11177666B2

公开(公告)日：2021-11-16

申请号：US16444409

申请日：2019-06-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keumsu Song ,  Kwangseob Kim ,  Kihyun Kim ,  Dongzo Kim ,  Jiwon Kim ,  Jihye Kim ,  Yunjeong Noh ,  Changhak O ,  Hyungkoo Chung ,  Mincheol Ha ,  Jongchul Hong ,  Yongsang Yun

IPC: H01F17/00 ,  H01F38/14 ,  H02J5/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/70 ,  H02J7/02 ,  H04B5/00

Abstract: An electronic device is provided. The electronic device includes a coil unit, a power transmission circuit electrically connected to the coil unit, and a control circuit configured to wirelessly transmit power using the coil unit, and the coil unit may include a first coil. The first coil may include a first layer wound in a first shape by a first number of turns, and a second layer extending from the first layer and wound in a second shape by a second number of turns, and the second layer may be disposed above the first layer to overlap the first layer.

公开(公告)号：US10673285B2

公开(公告)日：2020-06-02

申请号：US16283182

申请日：2019-02-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol Ha ,  Changhak O ,  Kwangseob Kim ,  Dongzo Kim ,  Jiwon Kim ,  Jongchul Hong ,  Kihyun Kim ,  Yunjeong Noh ,  Jaewan Park ,  Hyungkoo Chung ,  Jihye Kim ,  Keumsu Song ,  Yongsang Yun ,  Sangmoo Hwangbo

IPC: H02J50/60 ,  H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H02J7/00

Abstract: Various embodiments related to electronic devices are set forth herein. According to an embodiment, an electronic device comprises a coil, a power transmitting circuit electrically connected with the coil, a sensing circuit, and a control circuit. The control circuit is configured to wirelessly output, using the power transmitting circuit, a first designated power through the coil to an external electronic device, and identify, using the sensing circuit, first energy detected at the coil due to a foreign object of the electronic device. The control circuit is further configured to, when a magnitude of the energy falls within a first designated range, output, using the power transmitting circuit, a second designated power to the external electronic device, and when the magnitude of the energy falls within a second designated range, abstain from outputting the power to the external electronic device using the power transmitting circuit. Other embodiments are possible as well.