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：US11799317B2

公开(公告)日：2023-10-24

申请号：US17275936

申请日：2019-09-03

Applicant: LS ELECTRIC CO., LTD.

Inventor： Dohyun Kim ,  Dongjin Yun ,  Minjun Park

IPC: H02J1/10 ,  H02J9/06 ,  H02J13/00 ,  H02M1/00 ,  H02J3/00

CPC classification number: H02J9/061 ,  H02J1/102 ,  H02J3/0073 ,  H02J9/068 ,  H02J13/0004 ,  H02M1/0032

Abstract: The present specification relates to a power supply system which enables uninterruptible power supply, wherein a circuit breaker is provided to switch on/off each of electric circuits via which a plurality of power supply devices are connected, 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：US11476702B2

公开(公告)日：2022-10-18

申请号：US17275019

申请日：2019-09-11

Applicant: LS ELECTRIC CO., LTD.

Inventor： Jihong Kim ,  Kwangkyu Hwang ,  Dohyun Kim ,  Minjun Park

IPC: H02J9/06 ,  H02J3/38 ,  H02H1/00 ,  H02H7/26

Abstract: The present specification relates to an uninterruptible power supply device, an uninterruptible power supply system and a method for controlling the uninterruptible power supply system, and relates to a power supply device comprising a circuit breaker for switching connection to a power bus, thereby controlling the reception and supply of the power by opening and closing the circuit breaker according to various situations occurring in a system, a power supply system and a method for controlling the power supply system.