公开(公告)号：US09793787B2

公开(公告)日：2017-10-17

申请号：US14566368

申请日：2014-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Wonwoo Cho ,  Gwigeun Park

IPC: H02M1/08 ,  H02M7/483 ,  F25B31/02 ,  H02P6/14 ,  H03K17/60 ,  H02M5/44 ,  H02M1/00

CPC classification number: H02M1/08 ,  F25B31/02 ,  H02M5/44 ,  H02M7/483 ,  H02M2001/0006 ,  H02P6/14 ,  H03K17/60 ,  H03K2217/0081

Abstract: A motor driving device and an air conditioner including the same are disclosed. The disclosed motor driving device includes a multi-level converter to receive AC power, thereby outputting multi-level power, the multi-level converter including plural diodes and plural switching elements, plural capacitors for storing the multi-level power from the multi-level converter, and a gate drive signal generator to generate gate drive signals for the switching elements of the multi-level converter. The gate drive signal generator includes a gate drive power source to supply a gate drive voltage, a gate driver to generate the gate drive signals, using the gate drive voltage, a gate capacitor connected to both terminals of the gate driver, and a gate switching element connected between one end of the gate capacitor and one end of one of the plural capacitors. Accordingly, gate drive signals for the multi-level converter can be generated.

公开(公告)号：US09502996B2

公开(公告)日：2016-11-22

申请号：US14566282

申请日：2014-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Wonwoo Cho ,  Gwigeun Park ,  Youngsoo Seo

IPC: H02P5/00 ,  H02M7/02 ,  H02M1/42 ,  F25B49/02 ,  H02M5/44 ,  H02M1/00 ,  H02M3/158

CPC classification number: H02P5/00 ,  F25B49/025 ,  H02M1/4225 ,  H02M5/44 ,  H02M2001/0058 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A motor driving device and an air conditioner including the same are disclosed. The disclosed motor driving device includes a rectifier to rectify input AC power, and a converter to convert the power rectified by the rectifier into DC power. The converter includes an interleaved converter including a first converter and a second converter, which operate in an interleaved manner. The first converter of the interleaved converter includes a first boost converter, and a first resonator including a passive element connected to the first boost converter, to perform resonation. Accordingly, it is possible to reduce switching loss generated upon power conversion.

Abstract translation: 公开了一种电动机驱动装置和包括该电动机驱动装置的空调机。 所公开的电动机驱动装置包括整流器来整流输入交流电力，以及转换器，将由整流器整流的功率转换成直流电力。 转换器包括交错转换器，其包括以交错方式操作的第一转换器和第二转换器。 交错转换器的第一转换器包括第一升压转换器和包括连接到第一升压转换器的无源元件的第一谐振器，以执行谐振。 因此，可以减少电力转换时产生的开关损耗。