公开(公告)号：US11990791B2

公开(公告)日：2024-05-21

申请号：US17274706

申请日：2019-09-03

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jiheon Lee ,  Younggeun Kim ,  Heejung Kim ,  Ilhyung Lim

IPC: H02J9/06 ,  H02J3/32 ,  H02J3/38

CPC classification number: H02J9/063 ,  H02J3/32 ,  H02J3/38

Abstract: The present specification relates to a power supply device and a power supply system which enable uninterruptible power supply, wherein a circuit breaker is provided in a power bus to which a plurality of power supply devices are connected, so as to switch on/off the connected power supply devices, and thus the UPS function can be performed among the plurality of power supply devices by opening or closing the circuit breaker according to various situations occurring in the system to control power reception and supply.

公开(公告)号：US11967858B2

公开(公告)日：2024-04-23

申请号：US17772632

申请日：2020-03-18

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jiheon Lee ,  Dongjin Yun ,  Dohyun Kim ,  Jihong Kim ,  Minjun Park ,  Wonseok Do

IPC: H02J9/06 ,  H01H9/54 ,  H02M1/00 ,  H02M7/145

CPC classification number: H02J9/061 ,  H01H9/542 ,  H02J9/062 ,  H02J9/068 ,  H02M1/0067 ,  H02M7/145

Abstract: The present disclosure relates to an uninterruptible power supply (UPS) system and, more specifically, to a static transfer switch (STS) that can be applied to a UPS module, the static transfer switch comprising: one semiconductor rectifying element connected to either the anode terminal or the cathode terminal of a direct current power source; a bypass circuit for connecting the input terminal and the output terminal of the semiconductor rectifying element so as to bypass the semiconductor rectifying element; a breaker for opening or closing the bypass circuit; and a switch including a control unit, which controls the semiconductor rectifying element so as to conduct current when a preset conduction signal is received, controls the breaker so as to close the bypass circuit, and, when the bypass circuit is closed by the breaker, controls the semiconductor rectifying element so as to stop the conduction of current.

公开(公告)号：US11469611B2

公开(公告)日：2022-10-11

申请号：US17274708

申请日：2019-09-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Joohoon Lee ,  Jiheon Lee ,  Dongjin Yun ,  Dohyun Kim ,  Jihong Kim

IPC: H02J9/06 ,  H02J1/12 ,  H02H7/26 ,  H02J7/34 ,  H02J13/00

Abstract: The present specification relates to a power supply system enabling uninterruptible power supply, the system including a circuit breaker for regulating respective converters to which a plurality of power supply devices are connected, so as to control a power supply and demand by the opening and closing of the circuit breaker according to various situations occurring in the system, thereby enabling a UPS function to be performed between the plurality of power supply devices.

公开(公告)号：US12095308B2

公开(公告)日：2024-09-17

申请号：US17274703

申请日：2019-09-10

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jiheon Lee ,  Younggeun Kim ,  Heejung Kim ,  Ilhyung Lim

IPC: H02J9/06 ,  H02J3/32 ,  H02J3/38

CPC classification number: H02J9/063 ,  H02J3/32 ,  H02J3/38

Abstract: The present specification relates to a power supply device and a power supply system capable of uninterrupted power supply, which includes a circuit breaker for regulating connection to a power bus to which a plurality of power supply devices are connected, wherein the circuit breaker is opened or closed according to various situations occurring in the system so as to control power supply and demand.