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    Converter
    1.
    发明授权
    Converter 有权

    公开(公告)号：US12144157B2

    公开(公告)日：2024-11-12

    申请号：US17791016

    申请日：2021-01-05

    Applicant: LG Electronics Inc.

    Inventor： Seungwoo Chae ,  Taeyoung Park ,  Jinho Cho

    IPC: H05K7/20 ,  H02M7/00

    Abstract: A converter for an air conditioner includes a substrate, an inductor that is disposed in one side of the substrate and includes a core and a coil wound around the core, a switching element that is disposed in one side of the substrate and selectively controls a flow of a circuit, and a heat sink for absorbing heat generated from the switching element by contacting the switching element. A lead-in hole is formed in one side of the substrate, and at least a portion of the inductor is disposed in the lead-in hole, thereby quickly discharging the heat generated by the inverter and more efficiently using a space.

    Apparatus for converting DC power
    3.
    发明授权
    Apparatus for converting DC power 有权

    公开(公告)号：US10389252B2

    公开(公告)日：2019-08-20

    申请号：US15821967

    申请日：2017-11-24

    Applicant: LG ELECTRONICS INC.

    Inventor： Sanghyeon Kim ,  Taeyoung Park ,  Jeongeon Oh

    IPC: H02M3/335 ,  H01F27/24 ,  H01F27/28 ,  H02M1/08 ,  H05K1/09 ,  H05K1/16 ,  H05K1/18 ,  H02M3/158 ,  H02M1/00

    Abstract: Provided are a power converting system and a power converting apparatus, which include an input unit that receives a direct current (DC) voltage from an external power source, a conversion unit including a plurality of switching circuits that convert the input DC voltage into a multi-phase AC voltage, a resonant unit including a single resonant inductor connected to each of the plurality of switching circuits, and an output unit that rectifies each phase of the multi-phase AC voltage which has been converted in the plurality of switching circuits and outputs a single DC voltage.

    Air conditioner with variable power converter
    5.
    发明授权
    Air conditioner with variable power converter 有权

    公开(公告)号：US09742336B2

    公开(公告)日：2017-08-22

    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: H02M5/42 ,  H02P27/06 ,  H02M7/155 ,  H02M7/06 ,  F24F11/02

    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.

    Motor driving apparatus and home appliance including the same
    7.
    发明授权
    Motor driving apparatus and home appliance including the same 有权

    公开(公告)号：US10483893B2

    公开(公告)日：2019-11-19

    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 ,  H02P21/12 ,  H02M7/5387 ,  H02M1/00

    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.

    MOTOR DRIVING DEVICE AND AIR CONDITIONER INCLUDING THE SAME
    8.
    发明申请
    MOTOR DRIVING DEVICE AND AIR CONDITIONER INCLUDING THE SAME 有权
    电机驱动装置和空调器，包括它们

    公开(公告)号：US20150180384A1

    公开(公告)日：2015-06-25

    申请号：US14582905

    申请日：2014-12-24

    Applicant: LG ELECTRONICS INC.

    Inventor： Joonsij An ,  Sangyoung Kim ,  Taeyoung Park ,  Kyungmin Kim

    IPC: H02P6/00 ,  F25B1/00

    CPC classification number: F25B1/005 ,  H02M1/4225 ,  H02M5/44 ,  H02P6/28 ,  Y02B70/126

    Abstract: A motor driving device includes a rectifier to rectify inputted alternating current (AC) power, a boost converter to boost and to output the power rectified by the rectifier, and an inverter including a plurality of switching devices to output converted AC power to a motor using a voltage from the boost converter. Accordingly, a voltage utilization ratio of a voltage input to an inverter in the motor driving device using a low-capacitance capacitor is enhanced.

    Abstract translation: 电动机驱动装置包括整流器来整流输入的交流（AC）电力，升压转换器升压并输出由整流器整流的电力;以及逆变器，包括多个开关装置，以将转换的交流电力输出到电动机，使用 来自升压转换器的电压。 因此，提高使用低容量电容器的电动机驱动装置中输入到逆变器的电压的电压利用率。

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