公开(公告)号：US20160111895A1

公开(公告)日：2016-04-21

申请号：US14980904

申请日：2015-12-28

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H02J5/00 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  H02J50/80 ,  H04B5/0037

Abstract: Disclosed are a wireless power transmitting apparatus and a method thereof. The wireless power transmitting apparatus wirelessly transmits power to a wireless power receiving apparatus. The wireless power transmitting apparatus detects a wireless power transmission state between the wireless power transmitting apparatus and the wireless power receiving apparatus, and generates a control signal to control transmit power based on the detected wireless power transmission state. The wireless power transmitting apparatus generates the transmit power by using first DC power based on the control signal, and transmits the transmit power to a transmission resonance coil through a transmission induction coil unit based on an electromagnetic induction scheme.

公开(公告)号：US12261538B2

公开(公告)日：2025-03-25

申请号：US17918719

申请日：2021-04-08

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/08

Abstract: A zero voltage switching circuit includes a zero voltage switching unit which forms a full-bridge circuit at the primary side of a converter and comprises a plurality of switches for zero voltage switching; an adjustable inductor which performs zero voltage switching in resonance with a parasitic capacitor of the zero voltage switching unit, and is adjusted according to control of a control unit; and the control unit which controls inductance of the adjustable inductor according to an input voltage of the zero voltage switching unit or an electric current flowing in the adjustable inductor.

公开(公告)号：USRE49955E1

公开(公告)日：2024-04-30

申请号：US17675619

申请日：2022-02-18

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H02J5/00 ,  H02J7/02 ,  H02J50/10 ,  H02J50/12 ,  H02J50/80 ,  H04B5/79

CPC classification number: H02J50/80 ,  H02J50/10 ,  H02J50/12 ,  H04B5/79

Abstract: Disclosed are a wireless power transmitting apparatus and a method thereof. The wireless power transmitting apparatus wirelessly transmits power to a wireless power receiving apparatus. The wireless power transmitting apparatus detects a wireless power transmission state between the wireless power transmitting apparatus and the wireless power receiving apparatus, and generates a control signal to control transmit power based on the detected wireless power transmission state. The wireless power transmitting apparatus generates the transmit power by using first DC power based on the control signal, and transmits the transmit power to a transmission resonance coil through a transmission induction coil unit based on an electromagnetic induction scheme.

公开(公告)号：US11190040B2

公开(公告)日：2021-11-30

申请号：US16312902

申请日：2017-05-24

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/12 ,  H02J50/80 ,  H01F27/28 ,  H01F38/14

Abstract: An electromagnetic resonance-type wireless power transmitter according to one embodiment of the present invention may comprise: a power conversion unit including a converter capable of converting a voltage received from a power supply unit into a particular voltage; a power transmission unit including a wireless power transmission coil for receiving the particular voltage from the power conversion unit and wirelessly transmitting power, using a particular resonance frequency; a communication unit capable of performing data communication with a wireless power receiver; and a control unit for controlling the power conversion unit, the power transmission unit, and the communication unit, wherein the wireless power transmission coil may comprise an outer coil part having a first loop shape, and an inner coil part disposed within the first loop shape and having a second loop shape, the direction of a current flowing through the outer coil part may be opposite to that of a current flowing through the inner coil part adjacent to the outer coil part, and the direction of a magnetic field generated by the outer coil part may be identical to that of a magnetic field generated by the inner coil part in a first area between the outer coil part and the inner coil part adjacent to the outer coil part.

公开(公告)号：US10978246B2

公开(公告)日：2021-04-13

申请号：US16191782

申请日：2018-11-15

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H01F38/14 ,  H02J50/90 ,  H02J50/80 ,  H02J50/12 ,  H02J7/02 ,  H02J5/00

Abstract: Disclosed are a wireless power transmitter and a method of controlling power thereof. A wireless power transmitter includes a power supply device to supply AC power to the wireless power transmitter; and a transmission coil to transmit the AC power to a reception coil of a wireless power receiver by resonance. The wireless power transmitter controls transmission power to be transmitted to the wireless power receiver based on a coupling state between the transmission coil and the reception coil.

公开(公告)号：US10348135B2

公开(公告)日：2019-07-09

申请号：US16053987

申请日：2018-08-03

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae ,  Dong Ho Yong ,  Do Hyun Won ,  Jong Heon Lee

IPC: H02J50/12 ,  H02J50/80 ,  H02J5/00 ,  H02J7/02 ,  H02J7/00 ,  H02J7/04 ,  H02J7/34

Abstract: A charging control device includes a capacitor, a comparison unit and a switching unit. The capacitor is charged with a voltage converted from power received from a wireless power sending device. The comparison unit compares the voltage of the capacitor with a reference voltage, and generates an output signal according to the result of the comparison. The switching unit is connected to the front end of the capacitor and is switched by the output signal from the comparison unit so as to control whether to supply the converted voltage to a load terminal.

公开(公告)号：US10063085B2

公开(公告)日：2018-08-28

申请号：US14442208

申请日：2013-11-11

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H04B5/00 ,  H01F38/14 ,  G05F1/656 ,  H02M3/158 ,  H02J17/00 ,  H02J5/00 ,  H02J7/02 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H02J50/12

CPC classification number: H02J7/025 ,  H02J5/005 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90

Abstract: A power supplying apparatus includes a power supply and an alternating current (AC) power generator. The power supply generates a direct current (DC) power. The alternating current (AC) power generator comprises an inductor configured to generate an AC power based on the DC power, wherein the AC power comprises a first AC power with a first AC voltage and a second AC power with a second AC voltage, and the first AC voltage and the second AC voltage have phases opposite to each other.

公开(公告)号：US09773609B2

公开(公告)日：2017-09-26

申请号：US13902141

申请日：2013-05-24

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H02J17/00 ,  H01F38/14 ,  H02J5/00 ,  H02J7/02

CPC classification number: H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90

Abstract: Disclosed is a power supply apparatus of a wireless power transmitting apparatus wirelessly transmitting power to a wireless power receiving apparatus. The power supply apparatus includes a power supply to supply DC power, an oscillator to generate an AC signal having a predetermined frequency and an AC power generator to generate AC power using the AC signal and the DC power. The power supply apparatus controls an operating time of the AC power generator to adjust the power supplied to the wireless power transmitting apparatus.

公开(公告)号：US09601946B2

公开(公告)日：2017-03-21

申请号：US13712643

申请日：2012-12-12

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J17/00 ,  H02J5/00

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/80

Abstract: Disclosed is a wireless power transmitter for wirelessly transmitting a power to a wireless power receiver. The wireless power transmitter includes a transmitting unit for transmitting a power supplied from a power source to the wireless power receiver using resonance, and a detecting unit for measuring an input impedance seen to the transmitting unit at the power source to detect a variation of an output impedance of the wireless power receiver by using the measured input impedance.

公开(公告)号：US09601942B2

公开(公告)日：2017-03-21

申请号：US14963993

申请日：2015-12-09

Applicant: LG INNOTEK CO., LTD.

Inventor： Su Ho Bae

IPC: H01F38/14 ,  H02J7/02 ,  H02M7/02 ,  H02J17/00 ,  H02J5/00 ,  H02J7/04

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J7/04 ,  H02J17/00 ,  H02J50/10 ,  H02J50/40 ,  H02M7/02

Abstract: Disclosed is a wireless power receiver to transfer power wirelessly received from a wireless power transmitter to a load. The wireless power receiver includes a first reception induction coil coupled with a reception resonant coil to receive AC power; a first rectifying diode to rectify the AC power received through the first reception induction coil; a second reception induction coil connected to the first reception induction coil and coupled with the reception resonant coil to receive the AC power; and a second rectifying diode to rectify the AC power received through the second reception induction coil, wherein the wireless power receiver changes a transferring path of the power provided to the load according to a polarity variation of the AC power received through the first and second reception induction coils.