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公开(公告)号:US20220180826A1
公开(公告)日:2022-06-09
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.
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公开(公告)号:US20220158548A1
公开(公告)日:2022-05-19
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
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.
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公开(公告)号:US20190250692A1
公开(公告)日:2019-08-15
申请号:US16273372
申请日:2019-02-12
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Jeongil KANG
IPC: G06F1/3218
CPC classification number: G06F1/3218 , G09G2330/021
Abstract: Disclosed is a display apparatus. The display apparatus includes a display, a power supply configured to supply power to the display, a port, and a controller configured to control the power supply to supply power to an external apparatus through the port based on the external apparatus being connected to the port and control the power supply to adjust an amount of power supplied to the display based on a power supply characteristic of the port.
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公开(公告)号:US20250149969A1
公开(公告)日:2025-05-08
申请号:US19011898
申请日:2025-01-07
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Keonwoo KIM , Moonyoung KIM , Jeongil KANG
Abstract: An electronic device and a method of forming the electronic device is disclosed. The electronic device includes a first converter including a first transformer and a second transformer of which a primary winding is connected in parallel with a primary winding of the first transformer; and a second converter of which a primary input is connected in parallel with the first converter, and which includes a third transformer and a fourth transformer of which a primary winding is connected in parallel with a primary winding of the third transformer, wherein a secondary winding included in the first converter may be connected in series with a secondary winding included in the second converter.
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公开(公告)号:US20210057989A1
公开(公告)日:2021-02-25
申请号:US16997475
申请日:2020-08-19
Applicant: Samsung Electronics Co., Ltd. , Kookmin University Industry Academy Cooperation Foundation
Inventor: Duhee JANG , Sangkyoo HAN , Jeongil KANG , Kasan HA , Sanghoon LEE
Abstract: Disclosed are a display apparatus and an electronic apparatus, the display apparatus including: a main body including a display and a connector; and an adapter connectable to the main body and configured to supply power to the connected main body, the adapter including: a transformer configured to boost an input first alternating current (AC) voltage, a switch including a switching device configured to switch a current flowing in the transformer, a controller configured to control the switching device to output a second AC voltage boosted by the transformer, and the main body including a power factor correction (PFC) converter configured to correct a power factor of the second AC voltage output from the adapter and output a direct current (DC) voltage.
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公开(公告)号:US20210044199A1
公开(公告)日:2021-02-11
申请号:US16986822
申请日:2020-08-06
Applicant: Samsung Electronics Co., Ltd.
Inventor: Moonyoung KIM , Jeongil KANG
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.
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公开(公告)号:US20210020096A1
公开(公告)日:2021-01-21
申请号:US16898828
申请日:2020-06-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Moonyoung KIM , Jeongil KANG
IPC: G09G3/32
Abstract: An electronic apparatus is disclosed. The electronic apparatus includes: a power interface comprising circuitry connected with a display apparatus, a first converter comprising circuitry configured to convert an external power to a first driving power based on a first ground, a second converter comprising circuitry configured to convert the external power to a second driving power, based on a second ground, the second driving power having a voltage level lower than a voltage level of the first driving power, and a switch having a first end connected to an output end of the first converter, and the switch is connected to a power interface by one of the first end and a second end, wherein the switch is configured to be switched to supply one of the first driving power and the second driving power to the display apparatus through the power interface based on an operating state of the display apparatus.
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公开(公告)号:US20190341856A1
公开(公告)日:2019-11-07
申请号:US16353651
申请日:2019-03-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Duhee JANG , Jeongil KANG , Sanghoon LEE
Abstract: There is provided an adaptor, which includes an input circuit that rectifies an alternating current (AC) power input from outside the adaptor to a direct current (DC) voltage; a first converter that converts the rectified DC voltage to a first DC voltage in a specific level and an output circuit that applies the first DC voltage in the specific level to an electronic apparatus including a power factor correction (PFC) circuit.
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公开(公告)号:US20240107643A1
公开(公告)日:2024-03-28
申请号:US18228936
申请日:2023-08-01
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Keonwoo KIM , Moonyoung KIM , Jeongil KANG
IPC: H05B45/382 , H02M3/335
CPC classification number: H05B45/382 , H02M3/33569
Abstract: An electronic apparatus including a converter including a first transformer, the first transformer including a primary-side winding and a secondary-side winding; a first rectifier connected to the secondary-side winding of the first transformer, and including a diode; and a second transformer including a primary-side winding and a secondary-side winding, wherein the secondary-side winding of the first transformer is a single winding, and the primary-side winding of the second transformer is connected to a node to which the secondary-side winding of the first transformer and the diode included in the first rectifier are connected.
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公开(公告)号:US20240061483A1
公开(公告)日:2024-02-22
申请号:US18497247
申请日:2023-10-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Moonyoung KIM , Jeongil KANG
Abstract: Various embodiments of the present disclosure relate to balancing power in a power supply. To this end, a power supply may comprise: a plurality of power supply lines configured to respectively transmit power of a plurality of voltages; a power balancing control unit comprising circuitry configured to obtain each amount of power usage for each of the plurality of power supply lines, and generate a control signal based on each of the obtained amounts of power usages; and a power balancing unit comprising circuitry configured to transform a voltage of a current drawn from a first power supply line from among the plurality of power supply lines and provide the transformed voltage to a second power supply line from among the plurality of power supply lines.
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