公开(公告)号：US20190058264A1

公开(公告)日：2019-02-21

申请号：US15897203

申请日：2018-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Junyoung JUNG ,  Seungwoo RYU ,  Wonwoo LEE ,  Joohee LEE

IPC: H01Q25/00 ,  H01Q1/24 ,  H01Q21/24

CPC classification number: H01Q25/001 ,  H01Q1/243 ,  H01Q1/44 ,  H01Q9/0435 ,  H01Q21/0006 ,  H01Q21/065 ,  H01Q21/24

Abstract: An electronic device including a display unit; an array antenna including a transparent electrode material and being disposed within the display unit; and a radio frequency integrated circuit (RFIC) electrically connected to the array antenna. The array antenna includes an antenna element having first and second sides perpendicular to each other disposed slopingly at a predetermined angle with respect to one side of the display unit; and a feeding part connecting the antenna element and the RFIC.

公开(公告)号：US20180259583A1

公开(公告)日：2018-09-13

申请号：US15868133

申请日：2018-01-11

Applicant: LG ELECTRONICS INC.

Inventor： Yongchan JUNG ,  Wonwoo LEE

IPC: G01R31/34 ,  H02M7/219 ,  H02M5/458 ,  H02M1/42 ,  H02P23/14 ,  H02P23/26

CPC classification number: G01R31/343 ,  G01R31/346 ,  H02H7/0838 ,  H02H7/1227 ,  H02M1/4233 ,  H02M5/4585 ,  H02M7/219 ,  H02P23/14 ,  H02P23/26

Abstract: The present disclosure relates to inter-phase short-circuit detection, and particularly, to a method and apparatus for detecting inter-phase short-circuit of a three-phase motor, and an air conditioner including the same. The apparatus for detecting inter-phase short-circuit of a three-phase motor includes: a power supply for rectifying AC power to supply DC power; an inverter for generating three-phase current for driving the three-phase motor using the DC power, the inverter including a plurality of switching elements including high-side switching elements and low-side switching elements corresponding to three phases, and a current sensor commonly connected to the switching elements; a gate driver for driving the plurality of switching elements; and a controller for controlling the gate driver such that current flowing through the high-side switching elements and current flowing through the low-side switching elements partially short-circuit to sense a current flowing through the current sensor and determine inter-phase short-circuit.