Patents by Inventor Won-Yong Sung
Won-Yong Sung 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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Patent number: 11376976Abstract: A vehicle charger includes a power factor correction converter configured to correct the power factor of alternating current (AC) power is integrated with an input terminal of a DC-DC converter configured to generate a direct-current (DC) voltage having a magnitude required for an energy storage device in the vehicle, thereby reducing the size of the vehicle charger, reducing the number of required elements, and allowing the vehicle charger to have high efficiency; and a method for controlling the same.Type: GrantFiled: November 21, 2019Date of Patent: July 5, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Han Shin Youn, Ho Joong Lee, Hye Seung Kim, Joon Young Jeon, Won Yong Sung, Dong Jun Lee, Young Jin Jang
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Publication number: 20220194238Abstract: A vehicle battery charging system includes a main battery, an auxiliary battery, an integrated converter that includes a high voltage charging device that supplies power to the main battery and a low voltage charging device that supplies power to the auxiliary battery, a solar cell that converts sunlight into electrical energy, a solar cell converter that converts an output of the solar cell into a voltage corresponding to a voltage of the auxiliary battery and outputs the converted voltage to the auxiliary battery, and a switching device that switches between the integrated converter and external power and the integrated converter and the solar cell, wherein the switching device connects the integrated converter and the solar cell in a solar cell only charging mode in which the auxiliary battery is charged by the solar cell.Type: ApplicationFiled: October 25, 2021Publication date: June 23, 2022Inventors: Young Jin Jang, Sung Hwan Kim, Won Yong Sung, Dong Jun Lee, Hye Seung Kim
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Patent number: 11271417Abstract: A method for controlling charge or discharge of a battery in a battery system including a DC converter down-converting an input voltage thereof and outputting an output, a battery connected to an output terminal of the DC converter, and an electric load connected to the output terminal of the DC converter and supplied with electric power from at least one of the DC converter and the battery, may include measuring a temperature of the battery, first controlling, by a controller, an output of the DC converter so that a charging current supplied to the battery from the DC converter becomes a preset maximum value, when the temperature of the battery is lower than a first predetermined temperature, and second controlling, by the controller, the output of the DC converter such that a current of the battery is substantially equal to zero, when the temperature of the battery is higher than a second predetermined temperature which is higher than the first predetermined temperature.Type: GrantFiled: September 6, 2019Date of Patent: March 8, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joong Lee, Hye Seung Kim, Joon Young Jeon, Han Shin Youn, Won Yong Sung, Dong Jun Lee, Young Jin Jang
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Patent number: 11241971Abstract: A method of operating an on-board charger for charging a high voltage battery of an electrically-charged vehicle includes supplying a DC voltage obtained by converting an AC voltage to the high voltage battery to perform a charging operation, measuring an internal voltage of a DC EMI filter for removing noise of the DC voltage, generating a leakage current estimate based on the internal voltage, and controlling the charging operation in accordance with the leakage current estimate.Type: GrantFiled: March 19, 2019Date of Patent: February 8, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dong Jun Lee, Young Jin Jang, Won Yong Sung, Hye Seung Kim
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Patent number: 11135927Abstract: A four wheel drive vehicle includes: main driving wheels and auxiliary driving wheels; a first driving motor that provides power to the main driving wheels; a second driving motor that provides power to the auxiliary driving wheels; a battery that stores electrical energy; an inverter that converts and provides the electrical energy stored in the battery to the first driving motor; and a bidirectional power converter that generates charging electric power for charging the battery by converting power supplied from the outside of the vehicle and converts and provides the electrical energy stored in the battery to the second driving motor.Type: GrantFiled: November 25, 2019Date of Patent: October 5, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Han Shin Youn, Ho Joong Lee, Hye Seung Kim, Joon Young Jeon, Won Yong Sung, Dong Jun Lee, Young Jin Jang
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Publication number: 20210078423Abstract: A vehicle charger includes a power factor correction converter configured to correct the power factor of alternating current (AC) power is integrated with an input terminal of a DC-DC converter configured to generate a direct-current (DC) voltage having a magnitude required for an energy storage device in the vehicle, thereby reducing the size of the vehicle charger, reducing the number of required elements, and allowing the vehicle charger to have high efficiency; and a method for controlling the same.Type: ApplicationFiled: November 21, 2019Publication date: March 18, 2021Inventors: Han Shin Youn, Ho Joong Lee, Hye Seung Kim, Joon Young Jeon, Won Yong Sung, Dong Jun Lee, Young Jin Jang
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Publication number: 20210001738Abstract: A four wheel drive vehicle includes: main driving wheels and auxiliary driving wheels; a first driving motor that provides power to the main driving wheels; a second driving motor that provides power to the auxiliary driving wheels; a battery that stores electrical energy; an inverter that converts and provides the electrical energy stored in the battery to the first driving motor; and a bidirectional power converter that generates charging electric power for charging the battery by converting power supplied from the outside of the vehicle and converts and provides the electrical energy stored in the battery to the second driving motor.Type: ApplicationFiled: November 25, 2019Publication date: January 7, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Han Shin YOUN, Ho Joong LEE, Hye Seung KIM, Joon Young JEON, Won Yong SUNG, Dong Jun LEE, Young Jin JANG
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Publication number: 20200287390Abstract: A method for controlling charge or discharge of a battery in a battery system including a DC converter down-converting an input voltage thereof and outputting an output, a battery connected to an output terminal of the DC converter, and an electric load connected to the output terminal of the DC converter and supplied with electric power from at least one of the DC converter and the battery, may include measuring a temperature of the battery, first controlling, by a controller, an output of the DC converter so that a charging current supplied to the battery from the DC converter becomes a preset maximum value, when the temperature of the battery is lower than a first predetermined temperature, and second controlling, by the controller, the output of the DC converter such that a current of the battery is substantially equal to zero, when the temperature of the battery is higher than a second predetermined temperature which is higher than the first predetermined temperature.Type: ApplicationFiled: September 6, 2019Publication date: September 10, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Ho Joong LEE, Hye Seung KIM, Joon Young JEON, Han Shin YOUN, Won Yong SUNG, Dong Jun LEE, Young Jin JANG
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Publication number: 20200180452Abstract: A method of operating an on-board charger for charging a high voltage battery of an electrically-charged vehicle includes supplying a DC voltage obtained by converting an AC voltage to the high voltage battery to perform a charging operation, measuring an internal voltage of a DC EMI filter for removing noise of the DC voltage, generating a leakage current estimate based on the internal voltage, and controlling the charging operation in accordance with the leakage current estimate.Type: ApplicationFiled: March 19, 2019Publication date: June 11, 2020Inventors: Dong Jun LEE, Young Jin JANG, Won Yong SUNG, Hye Seung KIM
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Patent number: 10548211Abstract: Provided is a resonant network for plasma power supply, which is connected between a power supply unit and an output unit. The resonant network includes a resonant inductor connected in series with the power supply unit, a resonant capacitor connected in parallel with the output unit and connected in series with the resonant inductor, and a passive element connected in series with the output unit and the resonant inductor and connected in parallel with the resonant capacitor.Type: GrantFiled: September 20, 2018Date of Patent: January 28, 2020Assignees: NEW POWER PLASMA CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERInventors: Seung Hee Ryu, Chang Seob Lim, Hong Kweon Moon, Won Yong Sung, Geun Wan Koo, Byoung Kuk Lee
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Publication number: 20190357341Abstract: Provided is a resonant network for plasma power supply, which is connected between a power supply unit and an output unit. The resonant network includes a resonant inductor connected in series with the power supply unit, a resonant capacitor connected in parallel with the output unit and connected in series with the resonant inductor, and a passive element connected in series with the output unit and the resonant inductor and connected in parallel with the resonant capacitor.Type: ApplicationFiled: September 20, 2018Publication date: November 21, 2019Inventors: Seung Hee RYU, Chang Seob LIM, Hong Kweon MOON, Won Yong SUNG, Geun Wan KOO, Byoung Kuk LEE
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Patent number: 10276344Abstract: A power supply apparatus able to control an output current for maintaining plasma in a plasma generator includes: a switching power supply including a rectifier, an inverter, and a phase shifter; a plasma source connected to the switching power supply and generating the plasma in the plasma generator; a resonance network connected between the switching power supply and the plasma source and including a resonance inductor connected to a primary winding in series and a resonance capacitor connected to the plasma source in parallel and connected to the resonance inductor in series; and a control unit controlling the switching power supply in order to phase-shift a voltage and a current provided to the resonance network.Type: GrantFiled: July 31, 2017Date of Patent: April 30, 2019Assignee: NEW POWER PLASMA CO., LTD.Inventors: Won Yong Sung, Keun Wan Koo, Byoung Kuk Lee, Seung Hee Ryu, Chang Seob Lim, Hong Kweon Moon
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Publication number: 20180247791Abstract: A power supply apparatus able to control an output current for maintaining plasma in a plasma generator includes: a switching power supply including a rectifier, an inverter, and a phase shifter; a plasma source connected to the switching power supply and generating the plasma in the plasma generator; a resonance network connected between the switching power supply and the plasma source and including a resonance inductor connected to a primary winding in series and a resonance capacitor connected to the plasma source in parallel and connected to the resonance inductor in series; and a control unit controlling the switching power supply in order to phase-shift a voltage and a current provided to the resonance network.Type: ApplicationFiled: July 31, 2017Publication date: August 30, 2018Inventors: Won Yong SUNG, Keun Wan KOO, Byoung Kuk LEE, Seung Hee RYU, Chang Seob LIM, Hong Kweon MOON
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Publication number: 20180247794Abstract: A power supply apparatus having a passive element for plasma ignition in a plasma generator includes: a switching power supply including a rectifier and an inverter; a transformer including a primary winding and a ferrite core around which the primary winding is wound; and a resonance network connected between the switching power supply and the primary winding and including a resonance inductor connected to the primary winding in series and a resonance capacitor connected to the primary winding in parallel and connected to the resonance inductor in series, wherein the resonance network includes the passive element having one end connected to the resonance capacitor in series and the other end connected to a ground, and magnitudes of a voltage and a current of the inverter are adjusted by the passive element.Type: ApplicationFiled: July 31, 2017Publication date: August 30, 2018Inventors: Won Yong SUNG, Keun Wan KOO, Byoung Kuk LEE, Seung Hee RYU, Chang Seob LIM, Hong Kweon MOON
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Patent number: 8122328Abstract: A Bose-Chaudhuri-Hocquenghem (BCH) error correction circuit and method including storing normal data and first parity data in a memory cell array, the normal data and first parity data forming BCH encoded data; generating second parity data from the stored normal data; comparing the first parity data with the second parity data; and checking for an error in the normal data in response to the comparing.Type: GrantFiled: October 3, 2007Date of Patent: February 21, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Wei Liu, Won-Yong Sung
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Publication number: 20080244362Abstract: A Bose-Chaudhuri-Hocquenghem (BCH) error correction circuit and method including storing normal data and first parity data in a memory cell array, the normal data and first parity data forming BCH encoded data; generating second parity data from the stored normal data; comparing the first parity data with the second parity data; and checking for an error in the normal data in response to the comparing.Type: ApplicationFiled: October 3, 2007Publication date: October 2, 2008Applicants: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.Inventors: Wei LIU, Won-Yong SUNG