公开(公告)号：US20230292440A1

公开(公告)日：2023-09-14

申请号：US18020985

申请日：2021-08-24

Applicant: LG INNOTEK CO., LTD.

Inventor： Seung Min LEE ,  Kwang Soon JUNG

IPC: H05K1/18 ,  H05K1/02 ,  H05K1/05 ,  H05K3/34

CPC classification number: H05K1/181 ,  H05K1/0203 ,  H05K1/05 ,  H05K3/3421 ,  H05K3/3447

Abstract: A printed circuit board module comprises: a first substrate; a second substrate disposed on the first substrate and including a first region and a second region; a first element disposed on the front surface of the first region; and a second element disposed on the front surface of the second region, wherein the lower end of the first region and the lower end of the second region are disposed in a stepped manner.

公开(公告)号：US20230006566A1

公开(公告)日：2023-01-05

申请号：US17779744

申请日：2020-11-17

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Kyung Hyun KIM ,  Soo Hong KIM ,  Kyung Rae CHO

IPC: H02M3/335 ,  H02M1/14

Abstract: A DC-DC converter according to an embodiment of the present invention comprises: a switch unit that receives a first DC voltage, separates the first DC voltage into three-phase voltages, and outputs the separated three-phase voltages; a transformation unit that transforms the three-phase voltages output from the switch unit, and outputs a three-phase output voltage; and a rectification unit that rectifies the three-phase output voltage applied from the transformation unit, and outputs a second DC voltage.

公开(公告)号：US20240171059A1

公开(公告)日：2024-05-23

申请号：US18284001

申请日：2022-03-28

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Jeong Heum PARK

IPC: H02M1/00 ,  G01R19/00 ,  H02J3/38 ,  H02M3/158 ,  H02S40/30

CPC classification number: H02M1/007 ,  G01R19/0084 ,  H02J3/38 ,  H02M1/0077 ,  H02M3/1582 ,  H02S40/30 ,  H02J2300/26

Abstract: A power conversion device according to one embodiment of the present invention comprises: converters that are connected to respective cell strings; a voltage detection unit for detecting an input voltage and/or an output voltage of each of the plurality of converters; and a control unit which generates a control signal for each of the plurality of converters by using the voltage detected by the voltage detection unit and applies same, wherein the plurality of converters have a multi-level structure.

公开(公告)号：US20240056022A1

公开(公告)日：2024-02-15

申请号：US18283951

申请日：2022-03-25

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Jeong Heum PARK

IPC: H02S40/32 ,  H02M1/00 ,  H02S40/36

CPC classification number: H02S40/32 ,  H02M1/007 ,  H02M1/0003 ,  H02S40/36

Abstract: A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that are each connected to a plurality of cell strings; and a plurality of auxiliary power supply units for supplying driving power to each of the plurality of converters by using the voltage output from each cell string, wherein the plurality of converters have a multi-level structure.

公开(公告)号：US20240022173A1

公开(公告)日：2024-01-18

申请号：US18283919

申请日：2022-03-25

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Jeong Heum PARK ,  Soo Hong KIM

IPC: H02M3/158 ,  H02J1/12

CPC classification number: H02M3/1586 ,  H02J1/12 ,  H02J2300/26

Abstract: A power conversion apparatus according to an embodiment of the present invention comprises: a plurality of converters connected to a plurality of cell strings, respectively, and one control unit for applying a control signal to each of plurality of converters, wherein the plurality of converters constitute a multi-level.

公开(公告)号：US20230421070A1

公开(公告)日：2023-12-28

申请号：US18037374

申请日：2021-11-17

Applicant: LG INNOTEK CO., LTD.

Inventor： Soo San KIM ,  Kwang Soon JUNG

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33592 ,  H02M1/0003 ,  H02M3/33573 ,  H02M1/0048

Abstract: A converter according to an embodiment of the present invention comprises: a switching unit including a plurality of switches; a voltage transformer connected to the switching unit; a rectifier switch connected to the voltage transformer; and s sensor connected to a primary coil of the voltage transformer, a secondary coil of the voltage transformer, or the rectifier switch.

公开(公告)号：US20230089019A1

公开(公告)日：2023-03-23

申请号：US17908114

申请日：2021-03-08

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Jeong Heum PARK

IPC: H01F27/28 ,  H05K1/16 ,  H01F27/24

Abstract: A magnetic part according to an embodiment of the present invention comprises: a printed circuit board; a pattern coil formed on at least a surface of the printed circuit board; a core passing through the printed circuit board; and at least one winding coil disposed on at least a surface from among one surface and the other surface of the printed circuit board.

公开(公告)号：US20240322687A1

公开(公告)日：2024-09-26

申请号：US18574437

申请日：2022-07-04

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Jeong Heum PARK

IPC: H02M3/158 ,  H02J1/08 ,  H02M1/00 ,  H02S40/30

CPC classification number: H02M3/158 ,  H02J1/08 ,  H02M1/007 ,  H02M1/0077 ,  H02S40/30 ,  H02J2300/26

Abstract: A power conversion device according to one embodiment of the present invention comprises: a plurality of converters that are respectively connected to a plurality of cell strings; and an auxiliary power supply unit for supplying driving power to each of the plurality of converters, wherein the auxiliary power supply unit comprises: a first voltage conversion part for converting a first voltage of at least one output terminal from among output terminals of the plurality of cell strings into a second voltage, and outputting same; and a second voltage conversion part for supplying driving power to each of the plurality of converters by converting the second voltage, which has been output from the first voltage conversion part, into a third voltage, wherein the plurality of converters have a multi-level structure.

公开(公告)号：US20230327544A1

公开(公告)日：2023-10-12

申请号：US18025450

申请日：2021-09-10

Applicant: LG INNOTEK CO., LTD.

Inventor： Kwang Soon JUNG ,  Seung Min LEE

IPC: H02M1/42 ,  H02M7/217

CPC classification number: H02M1/4208 ,  H02M7/217

Abstract: A bridgeless power factor-improving converter according to one embodiment of the present invention comprises: a power input unit for receiving power; a first rectifying unit and a second rectifying unit for rectifying the received power; and a power factor-improving switch unit that is connected to the first rectifying unit and the second rectifying unit and improves a power factor according to an on/off operation. The second rectifying unit includes a second upper switch and a second lower switch, wherein the second upper switch is driven by being connected to a driving power source of the power factor-improving switch unit.

公开(公告)号：US20240356450A1

公开(公告)日：2024-10-24

申请号：US18682192

申请日：2022-08-12

Applicant: LG INNOTEK CO., LTD.

Inventor： Soo San KIM ,  Kwang Soon JUNG ,  Jae Yeop JUNG

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33573 ,  H02M1/0009 ,  H02M3/33515

Abstract: A converter according to one embodiment of the present invention comprises: a converting unit for converting an input voltage into a voltage of a predetermined level; a current sensing unit for sensing an input current of the converting unit; a voltage sensing unit for sensing an output voltage of the converting unit; and a control unit for varying the duty of the converting unit by using the sensed input current and the sensed output voltage.