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公开(公告)号：US11192460B2
公开(公告)日：2021-12-07
申请号：US16859383
申请日：2020-04-27
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kang-Ho Byun , Kyung-Woo Lee , Young-Min Lee , Se-Ho Park , Yu-Su Kim , Sung-Ku Yeo
Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
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公开(公告)号：US11043856B2
公开(公告)日：2021-06-22
申请号：US17028533
申请日：2020-09-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yu-Su Kim , Se-Ho Park , Sung-Ku Yeo , Kang-Ho Byun , Kyung-Woo Lee
Abstract: A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.
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公开(公告)号：US10888005B2
公开(公告)日：2021-01-05
申请号：US16535463
申请日：2019-08-08
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hyung-Sun Lee , Yu-Su Kim , Toshikazu Takayanagi
Abstract: A disclosed electronic device includes a housing having an opening, a roll mounted in the housing, a flexible display wound on the roll and being extendable and retractable through the opening based on a rotation direction of the roll, and a roll guide configured to guide the roll to move in a direction capable of constantly maintaining a proceeding direction of the flexible display toward the opening in the housing, based on a variation in a wound length of the flexible display on the roll.
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4.发明授权公开(公告)号：US10658874B2
公开(公告)日：2020-05-19
申请号：US16381459
申请日：2019-04-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Woo-Ram Lee , Yu-Su Kim , Se-Ho Park , Seung-Woo Han
Abstract: An apparatus and a method for are provided for a wireless power receiver. The method includes receiving power from a wireless power transmitter; converting the power in an alternating current (AC) form into a direct current (DC) form and providing the converted power to a battery of the electronic device; measuring a temperature of a point in the wireless power receiver during reception of the wireless power; maintaining an amount of the converted power at a first level if the temperature is lower than a first temperature; decreasing the amount of the converted power to a second level which is lower than the first level if the amount of the converted power is at the first level and the temperature is higher than or equal to the first temperature; stopping providing the converted power to the battery if the temperature is higher than a second temperature; and transmitting, to the wireless power transmitter, a signal including status information of the wireless power receiver device and control information to control the wireless power transmitter.
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公开(公告)号：US09558883B2
公开(公告)日：2017-01-31
申请号：US13875847
申请日：2013-05-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kang-Ho Byun , Kyung-Woo Lee , Yu-Su Kim , Se-Ho Park , Sung-Ku Yeo , Young-Min Lee
CPC classification number: H01F38/14 , H02J7/025 , H02J50/10 , H02J50/80 , H02J2007/0096
Abstract: Methods and apparatus are provided for detecting a non-intended object of power reception by a power transmitter. Power transmission for communication is performed, when the load change is sensed that has a value greater than or equal to a predetermined threshold. It is determined whether a subscription request, for subscribing to a network is received within a predetermined time period. The power transmission for communication is stopped when the subscription request is not received within the predetermined time period. Power is transmitted to a power receiver that has transmitted the subscription request, when the subscription request is received within the predetermined time period. It is determined whether a leakage power value exceeds an allowable range, when the power state report is received from the power receiver. The transmission of the power to the power receiver is stopped, when the leakage power value exceeds the allowable range.
Abstract translation: 提供了用于检测电力发送器的不期望的电力接收对象的方法和装置。 当检测到具有大于或等于预定阈值的值的负载变化时，执行用于通信的电力传输。 确定在预定时间段内是否接收到用于订阅网络的订阅请求。 当在预定时间段内没有接收到订阅请求时，停止用于通信的电力传输。 当在预定时间段内接收到订阅请求时，电力被发送到已发送订阅请求的电力接收器。 当从电力接收器接收到电力状态报告时，确定漏电功率值是否超过允许范围。 当泄漏功率值超过允许范围时，停止对电力接收器的电力传输。
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Patent Agency Ranking
6.发明授权Method for controlling charging power and wireless charging apparatus for the same 有权用于控制充电功率的方法及其无线充电装置公开(公告)号：US09048683B2
公开(公告)日：2015-06-02
申请号：US13656040
申请日：2012-10-19
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kyung-Woo Lee , Yu-Su Kim , Kang-Ho Byun , Sung-Ku Yeo
Abstract: Disclosed is a method for advance detection of output power, before arrival at a boundary frequency between an inband and an outband during frequency tracking in a wireless charging apparatus, the wireless charging apparatus including a first resonator resonating at a lower-limit frequency of the inband and a second resonator resonating at an upper-limit frequency of the inband, to adaptively adjust the frequency based on the power values output from the first and second resonators, and to determine a power transmission control value corresponding to the adjusted frequency, thereby enabling frequency control and power control within the inband.
Abstract translation: 公开了一种用于在无线充电装置中的频率跟踪期间到达带内和带外的边界频率之前的输出功率的提前检测的方法，该无线充电装置包括以带内的下限频率谐振的第一谐振器 以及以带内的上限频率谐振的第二谐振器，基于从第一和第二谐振器输出的功率值自适应地调整频率，并且确定与调节频率相对应的功率传输控制值，从而使能频率 控制和功率控制在内带。
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公开(公告)号：US11489368B2
公开(公告)日：2022-11-01
申请号：US16545025
申请日：2019-08-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sung-Ku Yeo , Dong-Zo Kim , Bong-Chul Kim , Yu-Su Kim
Abstract: An electronic device includes a controller to receive a signal from an external electronic device, and, based at least in part on the received signal, identify a wireless power scheme among at least two wireless power schemes. During the transmission mode, the controller controls the full bridge circuit to convert DC power to AC power based on a wireless power frequency corresponding to the identified wireless power scheme by controlling at least one transistor of the full bridge circuit, and controls to wirelessly transmit power based on the AC power to the external electronic device. During the reception mode, the controller controls to receive power from the external electronic device, controls the full bridge circuit to convert the received power to DC power by controlling transistors of the full bridge circuit, and controls to provide the converted DC power for the battery of the electronic device.
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公开(公告)号：US10797538B2
公开(公告)日：2020-10-06
申请号：US16587692
申请日：2019-09-30
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yu-Su Kim , Se-Ho Park , Sung-Ku Yeo , Kang-Ho Byun , Kyung-Woo Lee
Abstract: A method for controlling a wireless power receiver including a charging unit and a wireless power receiver are provided. The method includes receiving wireless power; rectifying the received wireless power and outputting Direct Current (DC) wireless power; and determining whether a voltage of the rectified wireless power is equal to or higher than an allowable voltage of the charging unit.
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公开(公告)号：US10797530B2
公开(公告)日：2020-10-06
申请号：US16883660
申请日：2020-05-26
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kang-Ho Byun , Kyung-Woo Lee , Young-Min Lee , Se-Ho Park , Yu-Su Kim , Sung-Ku Yeo
Abstract: A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
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公开(公告)号：US10432037B2
公开(公告)日：2019-10-01
申请号：US15592731
申请日：2017-05-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yu-Su Kim , Se-Ho Park , Sung-Ku Yeo , Kang-Ho Byun , Kyung-Woo Lee
Abstract: A method for controlling an electronic device including a charging circuit is provided. The method includes receiving power wirelessly from a power transmitting device; rectifying the received power; based on a voltage of the rectified power being greater than or equal to an allowable voltage of the charging circuit, controlling to convert the rectified power through a converting circuit of the electronic device and to output the converted power to the charging circuit for charging a battery of the electronic device, wherein the allowable voltage relates to a maximum voltage or a preferable voltage to be applied to the charging circuit; and based on the voltage of the rectified power being less than the allowable voltage of the charging circuit, controlling to stop converting the rectified power and to output the rectified power to the charging circuit by connecting the rectifying circuit to the charging circuit.
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