公开(公告)号：US20230146752A1

公开(公告)日：2023-05-11

申请号：US18153049

申请日：2023-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dongzo KIM ,  Mincheol HA ,  Kihyun KIM ,  Yunjeong NOH ,  Keyic SON ,  Taehyeon YU ,  Hyungkoo CHUNG

IPC: H01F27/28 ,  H02J50/40 ,  H02J50/70 ,  H02J50/10 ,  H02J50/00

CPC classification number: H01F27/2885 ,  H02J50/402 ,  H02J50/70 ,  H02J50/10 ,  H02J50/005 ,  H01F27/2823

Abstract: A wireless power transmission apparatus is provided. The wireless power transmission apparatus includes a first coil including a first conductive wire area formed of an arrangement of conductive wires, and a first opening area surrounded by the first conductive wire area, a second coil including a second conductive wire area formed of an arrangement of conductive wires, and a second opening area surrounded by the second conductive wire area, a first overlapping area formed by overlapping a portion of the first conductive wire area with a portion of the second opening area, and a first shielding member disposed on at least a portion of the first overlapping area, wherein the first shielding member may be configured to at least partially block an electromagnetic field generated by the second coil interfering in the first conductive wire area.

公开(公告)号：US20210036550A1

公开(公告)日：2021-02-04

申请号：US16929581

申请日：2020-07-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Kwangseob KIM ,  Kihyun KIM ,  Dongzo KIM ,  Jihye KIM ,  Yunjeong NOH ,  Changhak O ,  Kyungmin LEE ,  Hyungkoo CHUNG

IPC: H02J50/10 ,  H02J7/02 ,  H02J50/80

Abstract: An electronic device according to an embodiment may include: a wireless charging coil; a power transmission circuit configured to be electrically connected to the wireless charging coil; a wireless communication circuit configured to communicate with an external electronic device; and a control circuit. The control circuit may be configured to: transmit power to an external electronic device; obtain data corresponding to power received by the external electronic device in response to the transmitted power using the wireless communication circuit; obtain power loss based on the obtained data; stop transmitting the power to the external electronic device when the power loss exceeds a first threshold; and stop transmitting the power to the external electronic device according to whether an event related the power loss occurs even when the power loss is lower than the first threshold.

公开(公告)号：US20230047559A1

公开(公告)日：2023-02-16

申请号：US17830840

申请日：2022-06-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yusu KIM ,  Seho PARK ,  Hyungkoo CHUNG ,  Dohyeon KIM ,  Byunghwa PARK ,  Wooram LEE

IPC: H02J50/60 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90 ,  H02J7/00

Abstract: According to an embodiment, a wireless power transmitting device may include a transmission coil, a power providing circuit, and at least one controller. The at least one controller may be configured to control the power providing circuit to apply first power to the transmission coil, identify a resonant frequency, based on a voltage measured at the transmission coil in response to the first power applied to the transmission coil, based on a difference between the identified resonant frequency and a reference frequency meeting a designated condition, identify that a foreign object is placed on a charging area of the wireless power transmitting device, and based on the difference between the identified resonant frequency and the reference frequency failing to meet the designated condition, control the power providing circuit to apply, to the transmission coil, at least one second power for performing communication with a wireless power receiving device.

公开(公告)号：US20210143683A1

公开(公告)日：2021-05-13

申请号：US17057234

申请日：2019-07-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Kwangseob KIM ,  Kihyun KIM ,  Dongzo KIM ,  Jiwon KIM ,  Jihye KIM ,  Yunjeong NOH ,  Keumsu SONG ,  Changhak O ,  Kyungmin LEE ,  Hyungkoo CHUNG ,  Jongchul HONG ,  Yongsang YUN

IPC: H02J50/40 ,  H02J50/12 ,  H02J50/80 ,  H02J7/00

Abstract: Various embodiments relating to an electronic device are disclosed, and according to an embodiment, the electronic device may comprise: a plurality of coils; a first power generation circuit electrically connected to at least one of the plurality of coils; a second power generation circuit electrically connected to at least one of the plurality of coils; and a control circuit, wherein when the approach of a second external electronic device is detected while first power is provided to a first external electronic device by using a first frequency via the first power generation circuit, the control circuit allows the frequency of the second power generation circuit to be configured to a second frequency different from a first frequency in order to provide second power to the second external electronic device. Other embodiments may be possible.

公开(公告)号：US20200036227A1

公开(公告)日：2020-01-30

申请号：US16447113

申请日：2019-06-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwangseob KIM ,  Keumsu SONG ,  Changhak O ,  Dongzo KIM ,  Jihye KIM ,  Mincheol HA ,  Kihyun KIM ,  Jiwon KIM ,  Yunjeong NOH ,  Kyungmin LEE ,  Hyungkoo CHUNG ,  Jongchul HONG ,  Yongsang YUN

IPC: H02J50/10 ,  H01F27/30 ,  H01F27/28

Abstract: An electronic device including a wireless charging coils, and an operating method thereof are provided. The electronic device includes a housing including a concave portion couplable to a protrusion of one or more external electronic devices, a first coil stored inside the housing, a second coil stored inside the housing, and disposed between the first coil and the concave portion, a power transmission circuit including a first connecting terminal electrically coupled to the first coil and a second connecting terminal electrically coupled to the second coil, and a control circuit. The control circuit configured to check a data packet received from the external electronic device which is in proximity to the electronic device, control to transmit first designated power to the external electronic device through the first coil wirelessly, and second designated power to the external electronic device through the second coil wirelessly by using the power transmission circuit.

公开(公告)号：US20210249913A1

公开(公告)日：2021-08-12

申请号：US17173000

申请日：2021-02-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mincheol HA ,  Dongzo KIM ,  Hyungkoo CHUNG

IPC: H02J50/80 ,  H02J50/10 ,  H04W4/80

Abstract: An electronic device includes a coil, and at least one control circuit electrically connected to the coil. The control circuit is configured to transmit power to an external device via the coil by using a first frequency belonging to a first frequency band, receive a packet related with wireless charging from the external device via the coil, in response to having failed to receive the packet within a first reference time, change at least one of an amplitude of the power transmitted or the first frequency used for the transmitting of the power, and to transmit power to the external device via the coil on the basis of the at least one of the changed transmit power or the changed frequency.

公开(公告)号：US20210036554A1

公开(公告)日：2021-02-04

申请号：US16936496

申请日：2020-07-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kwangseob KIM ,  Changhak O ,  Kihyun KIM ,  Dongzo KIM ,  Jihye KIM ,  Yunjeong NOH ,  Kyungmin LEE ,  Hyungkoo CHUNG ,  Mincheol HA

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/80

Abstract: According to certain embodiments, a power transmission device comprises an induction circuit configured to transmit a wireless power signal through a charging pad and receive a signal from an external device; and at least one processor operatively connected to the induction circuit, wherein the processor is configured to: enter a wireless charging protection mode for wireless charging of the external device, measure a current value of the wireless power signal, and release the wireless charging protection mode when the packet information is not included in the signal transmitted from the external device and the measured current value or variation of the current value exceeds a threshold value.

公开(公告)号：US20200006949A1

公开(公告)日：2020-01-02

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

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：US20190267849A1

公开(公告)日：2019-08-29

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 ,  H02J50/12 ,  H02J7/02 ,  H02J50/80

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.

公开(公告)号：US20230361598A1

公开(公告)日：2023-11-09

申请号：US18351848

申请日：2023-07-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Keyic SON ,  Kihyun KIM ,  Dongzo KIM ,  Jihye KIM ,  Yunjeong NOH ,  Taehyeon YU ,  Kyungmin LEE ,  Hyungkoo CHUNG ,  Mincheol HA

IPC: H02J50/10 ,  H02J50/90 ,  H02J50/80 ,  H04W52/02

CPC classification number: H02J50/10 ,  H02J50/90 ,  H02J50/80 ,  H04W52/0251

Abstract: An electronic device is provided. The electronic device includes a wireless transmission circuit for transmitting power to a power reception device, and a first processor. When entering a power reduction mode, with respect to a first voltage and a first current being output from the wireless transmission circuit, the first processor includes, in case that the power reception device is in an align state, lower a voltage of the wireless transmission circuit to a second voltage lower than the first voltage and lower a current flowing in the electronic device to a second current lower than the first current, and, in case that the power reception device is in a misalign state, lower a voltage of the electronic device to a third voltage lower than the second voltage and lower a current flowing in the wireless communication circuit to a third current lower than the second current.