公开(公告)号：US20220209765A1

公开(公告)日：2022-06-30

申请号：US17606945

申请日：2020-03-19

Applicant: LS ELECTRIC CO., LTD.

Inventor： Woonghyeob SONG ,  Jungwook SIM ,  Chaeyoon BAE

IPC: H03K17/081

Abstract: The present disclosure relates to a semiconductor circuit breaker and, more specifically, to a semiconductor circuit breaker in which a protection circuit is modularized and thus maintenance and repair can be easily done. A semiconductor circuit breaker according to an embodiment of the present disclosure comprises: a main circuit unit connected between a power source and a load and having a semiconductor switch; an outer box equipped with the main circuit unit and having a module accommodation unit outside thereof; and a protection module detachably accommodated in the module accommodation unit.

公开(公告)号：US20240120727A1

公开(公告)日：2024-04-11

申请号：US18285922

申请日：2022-04-01

Applicant: LS ELECTRIC CO., LTD.

Inventor： Sunghee KANG ,  Jungwook SIM ,  Woonghyeob SONG ,  Dongjin YUN ,  Chaeyoon BAE

IPC: H02H3/08 ,  H02H5/04

CPC classification number: H02H3/085 ,  H02H5/041

Abstract: The present disclosure relates to a power device protection apparatus. A power device protection apparatus according to an embodiment of the present invention comprises: a comparator which is connected to a power device, and determines whether an overcurrent of the power device occurs; and a control unit which controls the comparator so as to change, by software, a overcurrent reference value for determining whether the overcurrent occurs, wherein the control unit receives temperature information of the power device, changes the overcurrent reference value on the basis of the temperature information, and performs the overcurrent reference value change according to the temperature information, on the basis of the characteristics of the power device.