公开(公告)号：US12143147B2

公开(公告)日：2024-11-12

申请号：US17730329

申请日：2022-04-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minhwan Jeon ,  Honggyu Kim ,  Hongseok Kim

IPC: H04B1/59 ,  H04B1/00 ,  H04B1/04

Abstract: According to various embodiment, an electronic device may include at least one communication processor, an RFIC, a power amplifier, and at least one modulator configured to provide the power amplifier with a supply voltage set for a first unit of time in a first mode or in a second unit of time shorter than the first unit of time in a second mode. The at least one communication processor may be configured to control the at least one modulator to provide the supply voltage according to the second mode and to switch from the second mode to the first mode when a variation in a voltage associated with a first element for providing the supply voltage is greater than or equal to a threshold magnitude while the supply voltage is provided to the power amplifier according to the second mode. Other various embodiments are possible as well.

公开(公告)号：US11177704B2

公开(公告)日：2021-11-16

申请号：US16432658

申请日：2019-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taeho Yoon ,  Junseok Kim ,  Hyungchul Lee ,  Byoungsoo Ko ,  Hongseok Kim

IPC: H02K1/27 ,  H02K1/14 ,  F25B1/04 ,  H02K1/02 ,  F04D25/06 ,  H02K3/18

Abstract: An interior permanent magnet motor includes a stator provided with a plurality of slots and a rotor rotatably disposed inside the stator. A plurality of permanent magnets of the same polarity are disposed at equal intervals in a circumferential direction inside the rotor. A plurality of flux bathers are provided on left and right sides of one end of each of the plurality of permanent magnets adjacent to an outer circumferential surface of the rotor. A ratio of a number of slots of the stator to a number of magnetic poles of the rotor is 3:2 or 3:4. The number of permanent magnets provided in the rotor is ½ of the number of magnetic poles of the rotor.

公开(公告)号：US11710992B2

公开(公告)日：2023-07-25

申请号：US16918556

申请日：2020-07-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinwoo Cho ,  Hongseok Kim ,  Jae-Woo Park ,  Ui-Yoon Lee

IPC: H02K1/18 ,  F25B31/02

CPC classification number: H02K1/185 ,  F25B31/026

Abstract: A compressor including a housing, and a motor including a stator to be interference fitted into and fixed to an inner circumferential surface of the housing and a rotor rotatable inside the stator. The stator includes an annular back yoke disposed inside the housing, a plurality of teeth extending radially inward from the back yoke, and a coil wound on the plurality of teeth. The back yoke includes a deformation portion compressed and deformed by the housing while the stator is interference fitted into the inner circumferential surface of the housing, a contact portion which protrudes radially outward from the deformation portion and being in contact with the housing, and a cavity formed on a radial inner side of the deformation portion into which the deformation portion is deformed.