公开(公告)号：US20250092594A1

公开(公告)日：2025-03-20

申请号：US18829120

申请日：2024-09-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyomin AHN ,  Jehyung CHO ,  Jeongil KANG ,  Seunghoon KIM ,  Junhyun PARK ,  Sungmo LEE ,  Seunghun LEE ,  Junghyun LEE

IPC: D06F34/10 ,  D06F34/05 ,  D06F34/08 ,  D06F34/28 ,  H02P3/14

Abstract: A washing machine including a motor regenerative braking configuration uses a buck power converter capable of reducing a direct current (DC) voltage, in association with charging an energy storage device when a voltage of a DC link capacitor becomes greater than or equal to a certain voltage. The washing machine uses the buck power converter in association with discharging the energy storage device and charging the DC link capacitor when the voltage of the DC link capacitor decreases. The washing machine may utilize regenerative braking energy by reducing or increasing a voltage amount provided from the energy storage device to a load by using a power conversion device.

公开(公告)号：US20250062705A1

公开(公告)日：2025-02-20

申请号：US18912164

申请日：2024-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghoon LEE ,  Youngjae PARK ,  Jonghyun SHIN ,  Taeho LEE ,  Jehyung CHO

IPC: H02P5/74 ,  F24F11/52 ,  F24F11/88 ,  H02P5/50 ,  H02P11/06

Abstract: An air conditioner includes an inverter configured to drive a first motor for driving a first outdoor unit and a second motor for driving a second outdoor unit in parallel, and a processor. The processor is configured to determine parameters of the first motor and parameters of the second motor, compare the parameters of the first motor with the parameters of the second motor to determine whether the parameters differ by at least a certain value, and control the inverter through heterogeneous control for the first motor and the second motor based on the parameters differing by at least a certain value.

公开(公告)号：US20240322674A1

公开(公告)日：2024-09-26

申请号：US18731957

申请日：2024-06-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyomin AHN ,  Youngjae PARK ,  Junghyun LEE ,  Taeho LEE ,  Jehyung CHO

IPC: H02M1/42 ,  H02M1/00 ,  H02M7/06

CPC classification number: H02M1/4291 ,  H02M1/0048 ,  H02M7/06

Abstract: A home appliance for controlling a harmonic magnitude includes a current sensor configured to detect an input current of a power source, and at least one processor, and the at least one processor is configured to obtain a harmonic component from the input current detected by the current sensor, determine a length of a non-conducting interval of a switch so that a magnitude of the obtained harmonic component is less than a predetermined harmonic reference value, and generate a current reference value corresponding to the determined length of the non-conducting interval.

公开(公告)号：US20230155585A1

公开(公告)日：2023-05-18

申请号：US18155439

申请日：2023-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jehyung CHO ,  Teaho LEE ,  Daesung KANG ,  Dongjo SHIN ,  Cheolhun CHO

IPC: H03K17/18 ,  H02M1/00 ,  G01R19/155

CPC classification number: H03K17/18 ,  H02M1/0003 ,  G01R19/155 ,  H02J9/005

Abstract: A power supply device is provided. The power supply device includes a first switch element for selectively providing an alternating current (AC) power source to an actuation device, a second switch element for selectively providing the AC power source to the first switch element, a detection circuit for confirming whether or not the first switch element is in a full turn-on state, by comparing an input power source and an output power source of the first switch element, a sensor for sensing the size of the AC power source, and a controller for selectively controlling the operation of the second switch element on the basis of the sensed size of the AC power source and the confirmed full turn-on state.

公开(公告)号：US20230155476A1

公开(公告)日：2023-05-18

申请号：US18155456

申请日：2023-01-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jehyung CHO ,  Ganghyun KIM ,  Dongjo SHIN ,  Daesung KANG ,  Sungin PARK ,  Hyojea SHIN ,  Teaho LEE

IPC: H02M1/00 ,  H02M1/36 ,  H02M7/72 ,  H02P27/06

CPC classification number: H02M1/0045 ,  H02M1/36 ,  H02M7/72 ,  H02P27/06

Abstract: A power supply device is provided. The power supply device includes a rectifier circuit for rectifying an inputted alternating current power supply, a capacitor circuit comprising a first and second capacitor which are connected in series, and smoothing the alternating current power supply rectified in the rectifier circuit, an inverter for converting the output power of the capacitor circuit to a preset power and outputting same, a switch for selectively connecting a middle node of the first capacitor and the second capacitor and an end of the alternating current power, a sensor for detecting a size of the alternating current power, and a controller which confirms a power mode of the alternating current power on the basis of an output value of the sensor, and which controls the switch so that the capacitor circuit multiplies and amplifies the selectively rectified alternating current power based on the confirmed power mode.