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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
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.
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Patent Agency Ranking
公开(公告)号：US11763703B2
公开(公告)日：2023-09-19
申请号：US17967547
申请日：2022-10-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Wonmyung Woo , Jeongil Kang , Kangmoon Seo , Sanghoon Lee
CPC classification number: G09F9/301 , G06F1/1652
Abstract: An electronic apparatus is provided. The electronic apparatus includes: a main body; and a power supply device configured to be electrically connected to the main body. The power supply device includes: a first housing comprising a first circuit configured to receive alternating current (AC) power; a second housing comprising a second circuit configured to supply direct current (DC) power to the main body; a hinge connected to the first housing and the second housing, and configured to be folded; and a flexible conductive structure electrically connecting the first circuit and the second circuit.
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公开(公告)号：US20240235383A9
公开(公告)日：2024-07-11
申请号：US18237122
申请日：2023-08-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Wonmyung Woo , Duhee Jang , Duhee Jang , Jeongil Kang , Hyungwan Kim , Sanghoon Lee
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.
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4.发明授权公开(公告)号：US11263959B2
公开(公告)日：2022-03-01
申请号：US16957153
申请日：2019-02-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sungyong Joo , Wonmyung Woo
IPC: G09G3/32
Abstract: Disclosed is a display device including a power factor corrector including a converter correcting a power factor of an input power and a controller controlling the converter, a power transformer converting power, of which a power factor is corrected by the power factor corrector, and a display panel receiving power through the power transformer to display an image. The controller controls the converter to increase a first voltage when the first voltage output through the converter is less than a specified voltage. Other various embodiments as understood from the specification are also possible.
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公开(公告)号：US12224660B2
公开(公告)日：2025-02-11
申请号：US18094769
申请日：2023-01-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Duhee Jang , Wonmyung Woo , Jeongil Kang , Sanghoon Lee
Abstract: The electronic apparatus including a power factor correction (PFC) circuit and a control circuit configured to control an operation of the PFC circuit is provided. The PFC circuit includes a first inductor part connected to one end of an AC voltage part and a first switch connected to a first inductor in series; a second inductor part connected to another end of the AC voltage part and a second switch connected to a second inductor in series; an output part connected to the first inductor part and the second inductor part; and a switching part, and the control circuit identically applies a switch on/off signal to the first switch and the second switch, and selectively applies a switch on/off signal to the third switch or the fourth switch based on a magnitude of an input voltage input through the AC voltage part.
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公开(公告)号：US11444529B2
公开(公告)日：2022-09-13
申请号：US17126290
申请日：2020-12-18
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Duhee Jang , Kangmoon Seo , Wonmyung Woo , Sanghoon Lee , Jungho Lee
Abstract: A power supply capable of protecting a rectifier circuit using a switching element from an overvoltage or an overcurrent is provided. The power supply includes a power input terminal; an output capacitor; a synchronous rectifier configured to rectify an AC voltage input through the power input terminal; a converter configured to convert the rectified AC voltage into a DC voltage following a preset voltage and supply the DC voltage to the output capacitor; and a protection circuit provided between the power input terminal and the output capacitor, and configured to supply an AC voltage higher than the voltage charged in the output capacitor to the output capacitor by bypassing the synchronous rectifier.
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