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1.发明授权公开(公告)号：US10903687B2
公开(公告)日：2021-01-26
申请号：US16879194
申请日：2020-05-20
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
Abstract: A method of supplying power in a wireless power receiver can include receiving an AC power via a reception coil in the wireless power receiver; rectifying the AC power to a DC power; transferring the DC power to a load during a charging mode when a voltage of the DC power is equal to or greater than a first threshold voltage corresponding to a target charging power for charging the load; and when the DC power being transferred to the load is less than the target charging power, maintaining the load in the charging mode while the voltage of the DC power is equal to or greater than a second threshold voltage in a state of the charging mode, in which the first threshold voltage is greater than the second threshold voltage.
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公开(公告)号：US10608475B2
公开(公告)日：2020-03-31
申请号：US16429943
申请日：2019-06-03
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae , Dong Ho Yong , Do Hyun Won , Jong Heon Lee
Abstract: A wireless power receiver for transferring a power received from a wireless power transmitter to a load, the wireless power receiver including a receiving coil configured to receive an AC power from the wireless power transmitter, a rectifier configured to rectify the AC power into a DC power and a controller configured to monitor a DC voltage at an output of the rectifier, in which the wireless power receiver transceives information with the wireless power transmitter through an in-band communication, and the controller creates a control signal to adjust the AC power received from the wireless power transmitter and continuously is configured to charge the load when a charging state is changed.
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公开(公告)号：US10483769B1
公开(公告)日：2019-11-19
申请号：US16213542
申请日：2018-12-07
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae , Dong Ho Yong
IPC: H01F27/42 , H01F37/00 , H01F38/00 , H02J5/00 , H02J17/00 , H02J7/02 , H02J7/00 , H02J50/23 , H01F38/14
Abstract: A wireless power transmission apparatus can include a member; an upper transmission coil disposed on the member; and first and second terminals disposed in the member, in which the upper transmission coil includes an outer coil part connected to the first terminal and formed in one-turn; a first inner coil part connected to the outer coil part and having a half-turn on a first region of the member; a second inner coil part connected to the first inner coil part and having a half-turn on a second region of the member; a third inner coil part connected to the second inner coil part and having a half-turn on the first region of the member; and a fourth inner coil part connected to the third inner coil part and the second terminal and having a half-turn on the second region of the member, in which the half-turn of the second inner coil part comprises a first rounded corner, a second rounded corner and a third rounded corner, a circular arc of the first rounded corner of the second inner coil part is R 20 mm as a radius of a circle, a circular arc of the second rounded corner of the second inner coil part is R 18.4 mm as a radius of a circle, and a circular arc of the third rounded corner of the second inner coil part is greater than the circular arc of the first and second rounded corners of the second inner coil part.
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公开(公告)号：US10326315B2
公开(公告)日：2019-06-18
申请号：US15534899
申请日：2015-10-05
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae , Yu Ri Park
Abstract: A wireless power transmission apparatus according to an embodiment of the present invention includes a resonance-type coil unit, an induction-type coil unit, and a loss suppression unit including a serial resonant circuit connected to both ends of the induction-type coil unit, wherein the loss suppression unit resonates at a first frequency for driving the resonance-type coil unit. A wireless power transmission apparatus according to another embodiment of the present invention includes a resonance-type coil unit, an induction-type coil unit, and a switch element connected to both ends of the induction-type coil unit, wherein the switch element is turned on or off when power is transmitted by either of the resonance-type coil unit or the induction-type coil unit.
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公开(公告)号：US09966998B2
公开(公告)日：2018-05-08
申请号：US13768704
申请日：2013-02-15
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
CPC classification number: H04B5/0037 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/80 , H04B5/0087
Abstract: A wireless power transmitter for transmitting power to a wireless power receiver in a wireless scheme includes a transmitting coil configured to transmit power, which is supplied by a power source, to a receiving coil of the wireless power receiver using resonance; and a detecting unit configured to detect a coupling state between the transmitting coil and the receiving coil using an input impedance of the wireless power transmitter.
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Patent Agency Ranking
公开(公告)号：US20180109119A1
公开(公告)日：2018-04-19
申请号：US15847048
申请日：2017-12-19
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
CPC classification number: H02J50/10 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/12 , H02J50/90 , H02M7/2176
Abstract: A method of controlling power in a wireless power receiver, the method including receiving an AC power via a reception coil, rectifying the AC power to a DC power and controlling the DC power applied to a load by comparing the DC power with a threshold voltage, wherein the controlling the DC power includes measuring a voltage of the DC power, allowing the load to enter a charging mode by transferring the DC power to the load when the measured voltage is equal to or greater than a first threshold voltage, maintaining the load in the charging mode when the measured voltage is equal to or greater than a second threshold voltage in a state of the charging mode, and blocking the DC power to the load when the measured voltage is less than the second threshold voltage.
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公开(公告)号：US09899874B2
公开(公告)日：2018-02-20
申请号：US14390682
申请日：2013-04-01
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
Abstract: A power supply device for a wireless power transmitting apparatus according to an embodiment of the present invention includes a power supply unit to supply DC power, an AC power generating unit to generate AC power by using the DC power, and a harmonic component reduction unit to reduce a magnitude of power for a harmonic frequency component in the generated AC power.
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公开(公告)号：US09793747B2
公开(公告)日：2017-10-17
申请号：US14441791
申请日：2013-11-06
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
CPC classification number: H02J7/042 , H02J5/005 , H02J7/0052 , H02J7/025 , H02J50/12 , H02J50/40 , H02J2007/0059
Abstract: Disclosed is a wireless power receiver and a power control method thereof. The wireless power receiver includes a reception unit to receive power from the wireless power transmitter by using a resonance scheme; a load management unit to control an impedance of the load according to a state of the load; and a rectifying unit disposed between the reception unit and the load management unit in order to rectify the received power, wherein the power transmitted from the wireless power transmitter is controlled by the controlled impedance.
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9.发明申请公开(公告)号：US20170149292A1
公开(公告)日：2017-05-25
申请号：US15424179
申请日：2017-02-03
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
CPC classification number: H02J50/12 , H01F27/2823 , H01F27/324 , H01F38/14 , H01F2038/146 , H02J5/005 , H04B5/0093
Abstract: Disclosed is a coil for wirelessly transmitting or receiving power. The coil includes a coil unit formed by winding a plurality of wires insulated from each other; and a capacitor connected to the coil unit. The wires of the coil unit are shorted at a predetermined interval.
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10.发明授权公开(公告)号：US09559553B2
公开(公告)日：2017-01-31
申请号：US15044996
申请日：2016-02-16
Applicant: LG INNOTEK CO., LTD.
Inventor： Su Ho Bae
IPC: H01F27/42
Abstract: The embodiment relates to a wireless power transmission apparatus and a wireless power transmission method. The wireless power transmission apparatus includes a first power converting unit to generate high-frequency AC signals; a second power converting unit to generate low-frequency AC signals; a first coil receiving the high-frequency AC signals and transmitting a wireless power through a first power transmission scheme; a second coil receiving the low-frequency AC signals and transmitting the wireless power through a second power transmission scheme; and a control unit to control the first and second coils, wherein the control unit is configured to transmit a detection signal for the first power transmission scheme to a wireless power reception apparatus through the first coil, detect a reception of a first response signal corresponding to the first detection signal during a first predetermined time, determine a power transmission scheme of the wireless power reception apparatus as the first power transmission scheme in response to a detection of the first response signal, and deactivate the first power converting unit in response to no detection of the first response signal.
Abstract translation: 本实施例涉及无线电力传输装置和无线电力传输方法。 无线电力传输装置包括：产生高频AC信号的第一电力转换单元; 第二功率转换单元，用于产生低频AC信号; 接收高频AC信号的第一线圈和通过第一功率传输方案发送无线电力; 接收低频AC信号的第二线圈和通过第二功率传输方案发送无线电力; 以及控制单元，用于控制第一和第二线圈，其中，所述控制单元被配置为通过所述第一线圈向无线电力接收装置发送用于所述第一功率传输方案的检测信号，检测对应于所述第一线圈的第一响应信号的接收 在第一预定时间期间的第一检测信号，响应于第一响应信号的检测，确定作为第一电力传输方案的无线电力接收装置的电力传输方案，并且响应于没有检测而停用第一电力转换单元 的第一响应信号。
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