公开(公告)号：US20230035452A1

公开(公告)日：2023-02-02

申请号：US17961244

申请日：2022-10-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moonyoung KIM ,  Jeongil Kang

IPC: H01F27/40 ,  H01F27/02

Abstract: A transformer device includes a transformer circuit having a shape arranged to be connected to another transformer device, and a connector provided on one side of the transformer circuit such that the transformer circuit is connected to a cable connected with another transformer device where the transformer circuit is configured to be connected to a transformer circuit of another transformer device through the cable to increase a voltage or current provided to a load.

公开(公告)号：US11477867B2

公开(公告)日：2022-10-18

申请号：US17274349

申请日：2019-08-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moonyoung Kim ,  Jeongil Kang ,  Shinwook Choi

IPC: H05B45/325 ,  H05B45/14 ,  H05B45/34 ,  H05B45/3725 ,  H05B45/30

Abstract: Disclosed is an LED driving apparatus. The LED driving apparatus comprises an LED driving circuit, a power supply unit for supplying a driving voltage to the LED driving circuit, a voltage ripple controller located between the LED driving circuit and the power supply unit, and a switching unit for controlling a voltage supplied to the LED driving circuit by turning on or off the voltage ripple controller according to a duty ratio of a pulse width modulation (PWM) dimming signal.

公开(公告)号：US11424671B2

公开(公告)日：2022-08-23

申请号：US16986822

申请日：2020-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Moonyoung Kim ,  Jeongil Kang

IPC: H02M1/32 ,  H02M3/158 ,  H02H3/20 ,  H02H7/12

Abstract: Disclosed is an overvoltage protection circuit and method thereof. The overvoltage protection circuit includes a charge/discharge circuit configured to be charged or discharged based on a source voltage of a first transistor included in a non-isolated converter and a comparison circuit, based on a voltage charged in the charge/discharge circuit exceeding a threshold voltage, turn off a power supply circuit supplying power to the non-isolated converter.

公开(公告)号：US20210175754A1

公开(公告)日：2021-06-10

申请号：US17114801

申请日：2020-12-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moonyoung KIM ,  Jeongil Kang ,  Jaesung Lee

IPC: H02J50/40 ,  H02J50/12 ,  G06F3/14 ,  H04N5/63 ,  H04N5/655 ,  H04N5/38 ,  H04N5/44 ,  F16M13/02

Abstract: Provided are a levitating display device and an operating method thereof. The display device includes a frame unit and a panel unit, wherein the frame unit includes a power receiver and a wireless power transmitter configured to wirelessly transmit power received by the power receiver to the panel unit, and the panel unit includes a wireless power receiver configured to wirelessly receive the power from the wireless power transmitter and a display configured to receive the power from the wireless power receiver and display an image.

公开(公告)号：US12027971B2

公开(公告)日：2024-07-02

申请号：US17588601

申请日：2022-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION

Inventor： Duhee Jang ,  Sangkyoo Han ,  Jeongil Kang ,  Hyosoon Choi ,  Kasan Ha

IPC: G09G3/00 ,  G09G3/20 ,  H02M1/42 ,  H02M3/335

CPC classification number: H02M1/4225 ,  G09G3/20 ,  H02M3/33507 ,  G09G2330/021 ,  G09G2330/06

Abstract: Disclosed is a display apparatus including: a display; a transformer configured to boost an input alternating current (AC) first voltage and output a second voltage; a switch configured to allow an electric current to flow or stop in the transformer based on a control signal; a power factor correction (PFC) converter configured to correct a power factor of the output second voltage, and output a direct current (DC) third voltage to the display; and a controller configured to modulate a frequency of the control signal so that the second voltage has a target level, and increase or decrease the frequency of the control signal within a specified range to synchronize with an AC period of the first voltage.

公开(公告)号：US20240136920A1

公开(公告)日：2024-04-25

申请号：US18237122

申请日：2023-08-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Wonmyung Woo ,  Duhee Jang ,  Duhee Jang ,  Jeongil Kang ,  Hyungwan Kim ,  Sanghoon Lee

IPC: H02M1/42 ,  H02M1/38

CPC classification number: H02M1/4225 ,  H02M1/385

Abstract: The present disclosure provides power supply apparatuses and controlling methods thereof. In some embodiments, a power supply apparatus includes a power factor correction (PFC) circuit, and a control circuit configured to control the PFC circuit. The PFC circuit includes a power inputter configured to receive alternating current voltage to be rectified, an inductor having an end coupled to an end of the power inputter, a first switching element configured to be turned on and off according to a first control signal, a second switching element configured to be turned on and off according to a second control signal, and an outputter configured to output a direct current voltage through an output capacitor. The control circuit is further configured to respectively apply the first and second control signals to the first and second switching elements such that the first and the second switching elements are alternately turned on.

公开(公告)号：US11532285B2

公开(公告)日：2022-12-20

申请号：US17436508

申请日：2020-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeongil Kang

IPC: G09G3/34

Abstract: A display device and controlling method are provided. The display device includes a display including a display panel and a backlight unit arranged on the rear surface of the display panel, a light emitting frame including a plurality of light emitting elements, the light emitting frame being arranged on at least one edge of the display, a backlight driver, and a processor configured to control the backlight driver so as to supply power to the backlight unit based on an event for turning on the display occurring, and supply power to the light emitting frame based on an event for turning off the display occurring.

公开(公告)号：US11270616B2

公开(公告)日：2022-03-08

申请号：US16985292

申请日：2020-08-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moonyoung Kim ,  Jeongil Kang

IPC: G09G3/20 ,  G06F3/02 ,  H02J4/00 ,  H02M1/44 ,  H02M1/42

Abstract: Disclosed are a display apparatus and a method of controlling the same, the display apparatus including: a display, a first connector connectable to a first power source, a second connector connectable to a second power source, a first converter configured to convert power supplied from the first power source, a second converter configured to supply operation power to the display based on power converted by the first converter or power supplied from the second power source, and a selector configured to connect the first connector and the first converter or the second connector and the second converter based on a power connection state of the first connector and the second connector.

公开(公告)号：US11177701B2

公开(公告)日：2021-11-16

申请号：US16834119

申请日：2020-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngho Choi ,  Jeongil Kang

IPC: H02J5/00 ,  H02J7/00 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H02J50/70 ,  G08B21/02

Abstract: A wireless power transmitting device is disclosed. The wireless power transmitting device includes a first communicator comprising communication circuitry configured to communicate with a wireless power receiving device, a wireless power transmitter configured to supply wireless power to the wireless power receiving device, and a first controller configured to control the wireless power transmitter to supply initiating power for obtaining wireless power efficiency to the wireless power receiving device and to control the wireless power transmitter to supply driving power for driving an electronic device including the wireless power receiving device to the wireless power receiving device based on the wireless power efficiency being a predetermined value or greater based on information received from the wireless power receiving device through the first communicator.

公开(公告)号：US11108272B2

公开(公告)日：2021-08-31

申请号：US16458306

申请日：2019-07-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moonyoung Kim ,  Jeongil Kang ,  Shinwook Choi

IPC: H02J7/00 ,  B60L11/18 ,  H02J50/12 ,  H02J50/90 ,  H01F38/14 ,  H02M1/42 ,  H04N5/63 ,  H02M3/335 ,  H02J7/02

Abstract: An electronic apparatus including a power transfer module configured to wirelessly transfer power to a power receiver and a controller configured to control the power receiver to transfer power based on voltage applied from the power transfer module to the power receiver.