公开(公告)号：US20140271272A1

公开(公告)日：2014-09-18

申请号：US14205614

申请日：2014-03-12

Applicant: LG Electronics Inc.

Inventor： Jonghyun JEON ,  Taeyoung PARK ,  Jungsong MOON ,  Sangyoung KIM ,  Joonsik AN

IPC: H02P27/06 ,  H02M7/06

CPC classification number: H02P27/06 ,  F24F11/89 ,  H02M7/06 ,  H02M7/1552

Abstract: A power converter and an air conditioner having the same, in which the power converter includes a rectifying unit configured to rectify an input AC current and an interleave converter that has a plurality of converters and that is configured to convert rectified output from the rectifying unit to DC power and output the converted DC power. The power converter also includes a capacitor connected to an output terminal of the interleave converter, and a converter controller configured to control the interleave converter. The converter controller controls the interleave converter by calculating a load level of both terminals of the capacitor and changing a number of operating converters in the plurality of converters of the interleave converter based on the determined load level of both terminals of the capacitor.

Abstract translation: 一种功率转换器和具有该功率变换器的空调机，其特征在于，所述功率转换器包括：整流单元，被配置为对输入的交流电流进行整流;以及整流单元，具有多个转换器，并且被配置为将整流单元的整流输出转换为 直流电源并输出转换的直流电源。 功率转换器还包括连接到交织转换器的输出端的电容器和被配置为控制交错转换器的转换器控制器。 转换器控制器通过计算电容器的两端的负载电平并根据确定的电容器的两端的负载水平来改变交错转换器的多个转换器中的工作转换器的数量来控制交错转换器。

公开(公告)号：US20180062551A1

公开(公告)日：2018-03-01

申请号：US15692029

申请日：2017-08-31

Applicant: LG ELECTRONICS INC.

Inventor： Jungsong MOON ,  Taeyoung PARK ,  Sangyoung KIM

IPC: H02P21/24 ,  H02M7/44

CPC classification number: H02P21/24 ,  H02M7/44 ,  H02M7/5387 ,  H02M2001/0054 ,  H02M2007/53876 ,  H02P21/12 ,  H03K2217/0036 ,  Y02B70/1491

Abstract: The present disclosure relates to a motor driving apparatus and a home appliance including the same. The motor driving apparatus in accordance with an embodiment of the present disclosure, comprises a DC-stage capacitor, a three-phase upper arm and lower arm switching element, an inverter to convert DC power from the DC-stage capacitor to an AC power by a switching operation and output the converted AC power to a motor, and a controller to control the inverter, wherein the controller controls the switching elements in the inverter based on a space vector-based pulse width variable, and controls a turn-on time of the switching elements to be shifted, wherein continuous first and second switching periods of the switching elements is changed to one switching period by shifting the a turn-on time of the switching elements. Accordingly, when the inverter is switched, noise can be reduced while reducing switching loss.