公开(公告)号：US09671150B2

公开(公告)日：2017-06-06

申请号：US13955620

申请日：2013-07-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun Jin Kim

IPC: F25D21/06 ,  F25D21/00 ,  F25B49/02 ,  F25D21/08

CPC classification number: F25D21/002 ,  F25B49/025 ,  F25B2600/024 ,  F25D21/006 ,  F25D21/08

Abstract: Disclosed herein are a cooling apparatus and a control method thereof. The cooling apparatus using latent heat of a refrigerant includes evaporators evaporating the refrigerant, a compressor compressing the evaporated refrigerant to a high pressure, defrosting heaters removing frost accumulated on the evaporators, a driving unit providing driving current selectively to the compressor or the defrosting heaters, and a control unit controlling the driving unit to provide driving current to the compressor in a cooling operation mode and controlling the driving unit to provide driving current to the defrosting heaters in a defrosting operation mode. The cooling apparatus controls the defrosting heaters using a driving circuit controlling the compressor, and thus lowers the manufacturing costs of a refrigerator operated at DC power.

公开(公告)号：US20160268951A1

公开(公告)日：2016-09-15

申请号：US15069958

申请日：2016-03-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Je Hyung Cho ,  Sun Jin Kim ,  Han Sol Seo

IPC: H02P27/06

CPC classification number: H02M1/14 ,  H02M7/483 ,  H02P27/14

Abstract: A motor driving apparatus includes an AC-DC conversion unit configured to rectify an AC power supplied from an external AC power source, a DC link unit configured to stabilize a voltage rectified by the AC-DC conversion unit, and a DC-AC conversion unit configured to supply the AC power to a motor using the DC voltage from the DC link unit. The DC link unit may include one pair of film capacitors configured to remove a ripple of the rectified voltage, and the DC-AC conversion unit may include a 3-level inverter receiving the DC voltage from the one pair of film capacitors to supply the AC power to the motor.

Abstract translation: 一种电动机驱动装置，包括AC-DC转换单元，被配置为对从外部交流电源供给的AC电力进行整流; DC链路单元，被配置为使由AC-DC转换单元整流的电压稳定;以及DC-AC转换单元 被配置为使用来自DC链路单元的DC电压将电力提供给电动机。 DC链路单元可以包括一对薄膜电容器，其被配置为去除整流电压的纹波，并且DC-AC转换单元可以包括从一对薄膜电容器接收DC电压以提供AC的3电平逆变器 电动机的电源。

公开(公告)号：US09337643B2

公开(公告)日：2016-05-10

申请号：US14022834

申请日：2013-09-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun Jin Kim

IPC: H02H3/00 ,  H02H3/16 ,  H02H1/00 ,  G01R31/14 ,  G01R31/12 ,  H02H7/26

CPC classification number: H02H3/16 ,  G01R31/1272 ,  G01R31/14 ,  H02H1/0015 ,  H02H3/162 ,  H02H7/26

Abstract: An arc fault detector, an electrical device having the arc fault detector, and a method of controlling the electrical device. The arc fault detector includes a current detector to detect current flowing through a plurality of loads in an electrical device, a filter unit to pass current having a frequency equal to or higher than a predetermined cut-off frequency from the frequency of the detected current, a comparison unit to compare a voltage of the passed current with a predetermined threshold voltage and output a comparison signal based on a comparison result, and a controller to determine whether an arc fault has been generated by comparing the comparison signal with a predetermined reference arc fault signal, determine a load having the arc fault from among the plurality of loads, and control cut-off of power to the determined load.

Abstract translation: 电弧故障检测器，具有电弧故障检测器的电气设备，以及控制电气设备的方法。 电弧故障检测器包括电流检测器，用于检测流过电气设备中的多个负载的电流;滤波器单元，从检测电流的频率传递等于或高于预定截止频率的频率的电流; 比较单元，用于将通过的电流的电压与预定阈值电压进行比较，并且基于比较结果输出比较信号;以及控制器，用于通过将比较信号与预定的参考电弧故障进行比较来确定是否产生了电弧故障 信号，从多个负载中确定具有电弧故障的负载，并且控制对所确定负载的功率截止。