Patents by Inventor Sang Kyoo Han
Sang Kyoo Han has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240145875Abstract: A connector position alignment assembly includes a first part and a second part coupled to each other through a connector and including a guide portion aligning a position of the connector. The guide portion is provided with a guide pin and a guide boss including portions protruding toward each other, and the guide pin and the guide boss respectively protrude further than the connector, in a direction in which the first part and the second part face each other, such that a portion of the guide pin is accommodated in the guide boss before the connectors are coupled to each other.Type: ApplicationFiled: September 25, 2023Publication date: May 2, 2024Inventors: Gang U LEE, Ho Yeon KIM, Sang Tae AN, Hwa Kyoo YOON, Jeong Woo HAN
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Publication number: 20240128572Abstract: An eco-friendly power source such as a battery module is provided for a transportation vehicle, including: a first sub-module and a second sub-module respectively including a cell stack in which a plurality of battery cells are stacked; and a central wall disposed between the first sub-module and the second sub-module, wherein the central wall includes a first central wall facing the first sub-module and a second central wall facing the second sub-module, wherein the first central wall has a rotationary symmetrical shape of the second central wall around a first axis.Type: ApplicationFiled: January 17, 2023Publication date: April 18, 2024Inventors: Ho Yeon KIM, Sang Tae AN, Hwa Kyoo YOON, Gang U LEE, Young Sun CHOI, Jeong Woo HAN
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Publication number: 20240128562Abstract: An eco-friendly power source, such as a battery module provided for a transportation vehicle includes a first sub-module and a second sub-module disposed in a first direction, the first sub-module and the second sub-module respectively including a plurality of battery cells stacked in a second direction, which is perpendicular to the first direction, and a lower cover coupled to the first sub-module and the second sub-module. The first sub-module and the second sub-module are disposed to be rotationally symmetrical to each other about a central axis, which is perpendicular to both the first direction and the second direction.Type: ApplicationFiled: March 15, 2023Publication date: April 18, 2024Inventors: Gang U LEE, Ho Yeon KIM, Sang Tae AN, Hwa Kyoo YOON, Jeong Woo HAN
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Patent number: 11881758Abstract: The present disclosure provides a display device, which enables minimization of a transformer circuit and which can be driven using various commercial voltages, and a method for controlling the display device. The display device according to an embodiment comprises: a display; a transformer which transforms commercial power and supplies the transformed commercial power to the display and which includes a plurality of switching devices; and a controller for determining, on the basis of the magnitude of an input voltage input to the transformer, whether or not to open at least one of the plurality of switching devices, and controlling the plurality of switching devices on the basis of an output voltage of the transformer to perform a modulation control of the output voltage to follow a predetermined reference voltage.Type: GrantFiled: November 6, 2019Date of Patent: January 23, 2024Assignees: SAMSUNG ELECTRONICS CO., LTD., KOOKMIN UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventors: Du Hee Jang, Sang-Kyoo Han, Sang Hoon Lee, Ka San Ha
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Publication number: 20230132923Abstract: According to the present invention, an output inductor, rather than being composed of a separate inductor element, is magnetically coupled to a third inductor and a fourth inductor constituting a second transformer. Thus, compared to the case in which the output inductor is composed of the separate inductor element independently of the third inductor and the fourth inductor, the cost as well as the volume of the DC-DC conversion device can be reduced.Type: ApplicationFiled: November 24, 2020Publication date: May 4, 2023Inventors: Jung Un PARK, Ja-Chun KOO, Sang-Kyoo HAN, Ji Hun BAE, Nayoung LEE, Jae Dong CHOI
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Publication number: 20210407361Abstract: The present disclosure provides a display device, which enables minimization of a transformer circuit and which can be driven using various commercial voltages, and a method for controlling the display device. The display device according to an embodiment comprises: a display; a transformer which transforms commercial power and supplies the transformed commercial power to the display and which includes a plurality of switching devices; and a controller for determining, on the basis of the magnitude of an input voltage input to the transformer, whether or not to open at least one of the plurality of switching devices, and controlling the plurality of switching devices on the basis of an output voltage of the transformer to perform a modulation control of the output voltage to follow a predetermined reference voltage.Type: ApplicationFiled: November 6, 2019Publication date: December 30, 2021Inventors: Du Hee JANG, Sang-Kyoo HAN, Sang Hoon LEE, Ka San HA
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Patent number: 10958182Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.Type: GrantFiled: December 31, 2019Date of Patent: March 23, 2021Assignee: SOLUM CO., LTD.Inventors: Sang-keun Ji, Sang-kyoo Han, Cheol-wan Park, Dong-kyun Ryu, Heung-gyoon Choi
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Publication number: 20200136518Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.Type: ApplicationFiled: December 31, 2019Publication date: April 30, 2020Inventors: Sang-keun JI, Sang-kyoo HAN, Cheol-wan PARK, Dong-kyun RYU, Heung-gyoon CHOI
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Patent number: 10630191Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.Type: GrantFiled: May 4, 2018Date of Patent: April 21, 2020Assignee: SOLUM CO., LTD.Inventors: Sang-keun Ji, Sang-kyoo Han, Cheol-wan Park, Dong-kyun Ryu, Heung-gyoon Choi
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Patent number: 10601326Abstract: A flyback converter is provided, which includes a transformer comprising a primary winding and a secondary winding, the transformer for transforming a power inputted from an input power supply and outputting the transformed power, a switching part having one end connected to the primary winding and the other end connected to the input power supply, and an auxiliary circuit including an auxiliary capacitor, and an auxiliary winding coupled to the primary winding. In addition, a clamping diode and a two-series connected switch structure is utilized for the switch stage to relieve the voltage stress of the switch. Accordingly, it is possible to reduce the voltage stress of the switch and also reduce the ripple of the input current which are the causes of EMI.Type: GrantFiled: May 23, 2019Date of Patent: March 24, 2020Assignees: Korea Aerospace Research Institute, Kookmin University Industry Academy Cooperation FoundationInventors: Na Young Lee, Jae Dong Choi, Sang Kyoo Han, Ju Young Lee
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Patent number: 10541619Abstract: An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.Type: GrantFiled: May 4, 2018Date of Patent: January 21, 2020Assignee: SOLUM CO., LTD.Inventors: Sang-keun Ji, Sang-kyoo Han, Hyun-su Gu, Hyo-hun Kim, Dong-kyun Ryu, Heung-gyoon Choi
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Patent number: 10505463Abstract: An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.Type: GrantFiled: May 4, 2018Date of Patent: December 10, 2019Assignee: SOLUM CO., LTD.Inventors: Sang-keun Ji, Sang-kyoo Han, Hyun-su Gu, Hyo-hun Kim, Dong-kyun Ryu, Heung-gyoon Choi
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Publication number: 20190363632Abstract: A flyback converter is provided, which includes a transformer comprising a primary winding and a secondary winding, the transformer for transforming a power inputted from an input power supply and outputting the transformed power, a switching part having one end connected to the primary winding and the other end connected to the input power supply, and an auxiliary circuit including an auxiliary capacitor, and an auxiliary winding coupled to the primary winding. In addition, a clamping diode and a two-series connected switch structure is utilized for the switch stage to relieve the voltage stress of the switch. Accordingly, it is possible to reduce the voltage stress of the switch and also reduce the ripple of the input current which are the causes of EMI.Type: ApplicationFiled: May 23, 2019Publication date: November 28, 2019Applicants: KOREA AEROSPACE RESEARCH INSTITUTE, KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATIONInventors: Na Young LEE, Jae Dong CHOI, Sang Kyoo HAN, Ju Young LEE
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Publication number: 20180342958Abstract: An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.Type: ApplicationFiled: May 4, 2018Publication date: November 29, 2018Inventors: Sang-keun JI, Sang-kyoo HAN, Hyun-su GU, Hyo-hun KIM, Dong-kyun RYU, Heung-gyoon CHOI
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Publication number: 20180342953Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.Type: ApplicationFiled: May 4, 2018Publication date: November 29, 2018Inventors: Sang-keun JI, Sang-kyoo HAN, Cheol-wan PARK, Dong-kyun RYU, Heung-gyoon CHOI
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Patent number: 9543843Abstract: There is provided a power supply device having a primary side and a secondary side isolated from each other. The power supply device includes: a power supply unit converting power from the primary side to output the converted power to the secondary side; a control unit located on the secondary side and acquiring control information on the power supply unit based on a voltage output from the power supply unit; and a delivery unit delivering the control information to the primary side, the delivery unit including a Y-capacitor that provides an EMI noise path between the primary side and the secondary side.Type: GrantFiled: February 28, 2014Date of Patent: January 10, 2017Assignee: SOLUM CO., LTD.Inventors: Tae Won Heo, Hwan Cho, Jeong Gyu Lim, Sang Kyoo Han, Young Seung Noh, Bo Mi Lee
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Patent number: 9450495Abstract: There is provided a single stage forward-flyback converter including a power converting unit switching input power to perform a forward power conversion operation while being switched on and perform a flyback power conversion operation while being switched off, a path providing unit clamping power formed by the forward power conversion operation of the power converting unit and power formed by the flyback power conversion operation thereof to provide power transfer paths, and a controlling unit controlling the power conversion operation of the power converting unit according to a voltage level of the input power.Type: GrantFiled: June 27, 2013Date of Patent: September 20, 2016Assignee: SOLUM CO., LTDInventors: Sang Kyoo Han, Byoung Woo Ryu, Heung Gyoon Choi, Keun Wook Lee, Hong Sun Park
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Publication number: 20160079872Abstract: In an embodiment of the present invention, a power converter for applying a voltage to a load having at least one channel includes a power supply for storing and outputting a floating voltage lower than a forward voltage of the channel and a converter for receiving and converting a link voltage to generate a first voltage, thereby transmit the voltage higher than the forward voltage of the channel.Type: ApplicationFiled: September 8, 2015Publication date: March 17, 2016Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Kyun RYU, Gie Hyoun KWEON, Sang Kyoo HAN
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Patent number: 9106147Abstract: There is provided a universal power supply apparatus including a power supply unit switching input power into driving power having a preset voltage level and supplying the driving power, a power recognition unit outputting a recognition voltage having a preset voltage level to an output terminal from which the power is output to recognize connection of a device, controlling a power output of the power supply unit according to a detected rated output, and recognizing disconnection of the device after the connection of the device according to a power state of the driving power of the power supply unit, and a detection unit providing a detection voltage having a preset voltage level to the output terminal.Type: GrantFiled: March 15, 2013Date of Patent: August 11, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Kyoo Han, Moon Hwan Keum, Young Seung Noh, Bo Mi Lee
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Patent number: 9058161Abstract: There are provided a universal power supplying apparatus and a universal power supplying method that can be universally used for various types of devices having a variety of voltage and current levels of a driving power. The universal power supplying apparatus includes a power supplying unit that converts an input power into a driving power having a previously set voltage level and supplies the converted power, a power recognizing unit that outputs a recognized voltage having the previously set voltage level to an output terminal from which power is output to recognize connection of a device, and controls a power output of the power supplying unit according to a detected rated output, and a detecting unit that provides a detection voltage having the previously set voltage level to the output terminal.Type: GrantFiled: February 28, 2013Date of Patent: June 16, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Young Seung Noh, Sang Kyoo Han, Moon Hwan Keum, Bo Mi Lee