公开(公告)号：US20230052693A1

公开(公告)日：2023-02-16

申请号：US17893390

申请日：2022-08-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mingi SONG ,  Kyungmin PARK ,  Changhak O

IPC: H02J50/60 ,  G01R19/165 ,  H02J50/12 ,  H02J7/00 ,  H02J50/80

Abstract: An electronic device and method are disclosed. The electronic device includes: a battery, a wireless power transfer (WPT) coil, wireless power transceiver circuitry, a charging circuit, and a processor electrically connected to the wireless power transceiver circuitry and the charging circuit. The processor implements the method, including: receiving first detecting power from an external electronic device, determining whether a reception voltage generated by the received first detecting power is higher than a first predetermined voltage value, based on detecting that the reception voltage is higher than the first predetermined voltage value, supplying power from the battery to the wireless power transceiver circuitry, outputting via the WPT coil, foreign object detecting power based on the supplied power, and based on detecting an electrical change in the foreign object detecting power caused by presence of a foreign object, determining that an error has occurred.

公开(公告)号：US11476710B2

公开(公告)日：2022-10-18

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: H02J50/60 ,  H02J50/10 ,  H02J50/80 ,  H02J7/02

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：US11456625B2

公开(公告)日：2022-09-27

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 ,  H02J50/80 ,  H02J50/10

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：US12015335B2

公开(公告)日：2024-06-18

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: H02J50/80 ,  H02J7/00 ,  H02J50/12 ,  H02J50/40 ,  H02M1/44 ,  H02M3/335

CPC classification number: H02M1/44 ,  H02J7/007182 ,  H02J50/12 ,  H02J50/402 ,  H02J50/80 ,  H02M3/33573

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：US20230055574A1

公开(公告)日：2023-02-23

申请号：US17748125

申请日：2022-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Changhak O

IPC: H02J7/00

Abstract: An electronic device may include a power management circuit (PMC) configured to charge a battery using a power signal, a processor connected to the PMC, and a memory connected to the processor. The memory may store instructions that, when executed, cause the processor to identify that an internal temperature of the electronic device increases to a first temperature while a current power signal value is a first charging current, configure the current power signal value to a thermal control current lower than the first charging current as the internal temperature increases to the first temperature, identify that the internal temperature decreases to a second temperature while the current power signal value is the thermal control current, and configure the current power signal value to a second charging current lower than the first charging current but higher than the thermal control current as the internal temperature decreases to the second temperature.

公开(公告)号：US11128169B2

公开(公告)日：2021-09-21

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: H02J7/00 ,  H02J50/10 ,  H01F27/28 ,  H01F27/30

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：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.