Patents by Inventor Tae Jong Ha
Tae Jong Ha 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: 20240105378Abstract: A planar transformer and a converter including the same include a first core unit including a first receiving portion extending in a first direction; a second core unit spaced from the first core unit, disposed in parallel with the first core unit in a second direction thereof, and including a second receiving portion extending in the first direction; a first coil unit including a first through hole formed in a center portion thereof and a first coil pattern passing through the first receiving portion and the second receiving portion around the first through hole to form a turn; and a second coil unit including a second through hole formed in a center portion thereof and aligned with the first through hole in a third direction thereof, and a second coil pattern passing through the first receiving portion and the second receiving portion around the second through hole.Type: ApplicationFiled: January 19, 2023Publication date: March 28, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Dae Woo LEE, Sang Jin KIM, Tae Jong HA, Byung Gu KANG
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Patent number: 11757352Abstract: A power conversion system for electrically driven mobility device includes a first energy storage device and a second energy storage device having a voltage output lower than a voltage of the first energy storage device, a relay having one terminal connected to the first energy storage device, a DC link capacitor connected to the other terminal of the relay, a first DC converter provided between the DC link capacitor and the second energy storage device and capable of bidirectional voltage conversion, and a controller configured to control the first DC converter to convert a level of the voltage of the second energy storage device and to apply the voltage having the converted level to the capacitor before switching of the relay from an off state to an on state to charge the DC link capacitor to a preset voltage or higher, and then to switch the relay to the on state.Type: GrantFiled: September 9, 2021Date of Patent: September 12, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Tae Jong Ha, Dae Woo Lee, Byung Gu Kang
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Patent number: 11728735Abstract: A converter using a planar transformer includes an input device that receives a first voltage, a transformer including a first planar transformer and a second planar transformer that reduce the first voltage, and an output device that outputs the first voltage as a second voltage, wherein the first voltage is greater than the second voltage, and the input device provides a current to a primary winding coil of each of the first planar transformer and the second planar transformer through a first current path and a second current path in which current directions are different with each other, and includes a plurality of inductors connected in parallel with the primary winding coil of each of the first planar transformer and the second planar transformer.Type: GrantFiled: October 30, 2020Date of Patent: August 15, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dae Woo Lee, Byung Gu Kang, Tae Jong Ha
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Patent number: 11691525Abstract: A method of controlling charge of a vehicle battery includes: determining, by a control unit, whether a high voltage battery and a low voltage battery are charged in a first charging mode, a second charging mode, or a third charging mode; and charging at least one of the high voltage battery or the low voltage battery by controlling a first full-bridge circuit unit, a second full-bridge circuit unit, and a low voltage direct current (DC) converter unit based on the determined first, second or third charging mode.Type: GrantFiled: November 29, 2021Date of Patent: July 4, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Dae Woo Lee, Jae Eun Cha, Byung Gu Kang, Tae Jong Ha
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Publication number: 20230170691Abstract: A multi-output power conversion apparatus capable of integrally operating an auxiliary battery includes a high voltage battery configured to output a first power and a power conversion unit. The power conversion unit is configured to convert the first power into a second power and to convert the second power into a third power with multiple outputs to supply it to each of a plurality of electric part loads with different power consumption magnitudes.Type: ApplicationFiled: June 16, 2022Publication date: June 1, 2023Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Tae-Jong Ha, Dae-Woo Lee, Byung-Gu Kang
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Publication number: 20230076042Abstract: An embodiment apparatus includes a converter including a plurality of switching elements configured as a bridge circuit connected to an input terminal and having a plurality of bridge arms, wherein a topology of the converter is configured to be switchable to a full-bridge type topology or a half-bridge type topology, and wherein a resonant capacitor is connected to a midpoint between respective ones of the bridge arms, and a controller configured to switch the topology of the converter to the full-bridge type or the half-bridge type by controlling whether the resonant capacitor is activated based on a load current of the converter.Type: ApplicationFiled: July 11, 2022Publication date: March 9, 2023Inventors: Dae Woo Lee, Tae Jong Ha, Byung Gu Kang
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Publication number: 20220368215Abstract: A power conversion system for electrically driven mobility device includes a first energy storage device and a second energy storage device having a voltage output lower than a voltage of the first energy storage device, a relay having one terminal connected to the first energy storage device, a DC link capacitor connected to the other terminal of the relay, a first DC converter provided between the DC link capacitor and the second energy storage device and capable of bidirectional voltage conversion, and a controller configured to control the first DC converter to convert a level of the voltage of the second energy storage device and to apply the voltage having the converted level to the capacitor before switching of the relay from an off state to an on state to charge the DC link capacitor to a preset voltage or higher, and then to switch the relay to the on state.Type: ApplicationFiled: September 9, 2021Publication date: November 17, 2022Inventors: Tae Jong Ha, Dae Woo Lee, Byung Gu Kang
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Patent number: 11489476Abstract: A vehicle power conversion apparatus is provided to reduce an overall system size by integrating a motor controller which generates power and a power supply apparatus which converts the power. The vehicle power conversion apparatus includes a driving motor which is connected to an engine and a power converter which selectively converts power in a plurality of modes to generate the power related to an operation of the driving motor. A first battery supplies the power for the conversion or receives the converted power.Type: GrantFiled: July 27, 2020Date of Patent: November 1, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Tae-Jong Ha, Byung-Gu Kang, Dae-Woo Lee, Youn-Sik Lee
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Patent number: 11335494Abstract: A planar transformer is disclosed. The planar transformer includes a first core, a second core, a third core, and a fourth core, which are sequentially disposed; a primary coil unit having multiple primary substrates through which the first to fourth cores penetrate and on which primary coil patterns are formed such that magnetic flux is generated in a first direction in the first and fourth cores and in a second direction in the second and third cores; and a secondary coil unit having multiple secondary substrates through which the first to fourth cores penetrate and on which secondary coil patterns are formed, the secondary coil patterns formed on a periphery of the first to fourth cores such that current induced by the magnetic flux flowing in the first to fourth cores flows therein, wherein the multiple primary and secondary substrates form a multi-layer structure.Type: GrantFiled: July 12, 2019Date of Patent: May 17, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: In Yong Yeo, Tae Jong Ha, Dae Woo Lee, Youn Sik Lee
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Publication number: 20220080846Abstract: A method of controlling charge of a vehicle battery includes: determining, by a control unit, whether a high voltage battery and a low voltage battery are charged in a first charging mode, a second charging mode, or a third charging mode; and charging at least one of the high voltage battery or the low voltage battery by controlling a first full-bridge circuit unit, a second full-bridge circuit unit, and a low voltage direct current (DC) converter unit based on the determined first, second or third charging mode.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Dae Woo Lee, Jae Eun Cha, Byung Gu Kang, Tae Jong Ha
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Patent number: 11230201Abstract: A system of charging a battery of a vehicle is provided. The system includes a charger having a direct current (DC) capacitor to which a DC voltage converted from an AC charge voltage is applied and a first DC converter that converts a magnitude of a voltage of the DC capacitor. A first battery is connected to the first DC converter and is charged with a DC voltage converted by the first DC converter. A second DC converter is connected to the battery and converts a magnitude of a voltage of the battery. A second battery receives a DC voltage converted by the second DC converter. A controller charges the DC capacitor up to a predetermined initial charge voltage using power stored in the second battery by operating the second DC converter and the first DC converter in a backward direction before the AC charge voltage is provided to the charger.Type: GrantFiled: November 11, 2019Date of Patent: January 25, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Dae Woo Lee, Min Seong Choi, In Yong Yeo, Tae Jong Ha, Jin Myeong Yang, Woo Young Lee
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Publication number: 20220014103Abstract: A converter using a planar transformer includes an input device that receives a first voltage, a transformer including a first planar transformer and a second planar transformer that reduce the first voltage, and an output device that outputs the first voltage as a second voltage, wherein the first voltage is greater than the second voltage, and the input device provides a current to a primary winding coil of each of the first planar transformer and the second planar transformer through a first current path and a second current path in which current directions are different with each other, and includes a plurality of inductors connected in parallel with the primary winding coil of each of the first planar transformer and the second planar transformer.Type: ApplicationFiled: October 30, 2020Publication date: January 13, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dae Woo LEE, Byung Gu KANG, Tae Jong HA
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Patent number: 11214158Abstract: A method of controlling charge of a vehicle battery includes: determining, by a control unit, whether a high voltage battery and a low voltage battery are charged in a first charging mode, a second charging mode, or a third charging mode; and charging at least one of the high voltage battery or the low voltage battery by controlling a first full-bridge circuit unit, a second full-bridge circuit unit, and a low voltage direct current (DC) converter unit based on the determined first, second or third charging mode.Type: GrantFiled: January 17, 2020Date of Patent: January 4, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dae Woo Lee, Jae Eun Cha, Byung Gu Kang, Tae Jong Ha
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Publication number: 20210257951Abstract: A vehicle power conversion apparatus is provided to reduce an overall system size by integrating a motor controller which generates power and a power supply apparatus which converts the power. The vehicle power conversion apparatus includes a driving motor which is connected to an engine and a power converter which selectively converts power in a plurality of modes to generate the power related to an operation of the driving motor. A first battery supplies the power for the conversion or receives the converted power.Type: ApplicationFiled: July 27, 2020Publication date: August 19, 2021Inventors: Tae-Jong Ha, Byung-Gu Kang, Dae-Woo Lee, Youn-Sik Lee
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Patent number: 10965205Abstract: A power conversion system for vehicles is provided. The system includes a first energy storage device and a charging device with a rectification circuit for rectifying AC power to generate a DC link voltage. A DC-DC converter converts the level of the DC link voltage to generate a charging voltage of the first energy storage device. A low voltage DC-DC converter selectively down-converts one of the voltage of the first energy storage device and the DC link voltage to output a low voltage having a predetermined level. The low voltage DC-DC converter selectively converts one of the voltage of the first energy storage device and the DC link voltage into the low voltage based on whether the first energy storage device is charged according to input of the AC power.Type: GrantFiled: October 5, 2018Date of Patent: March 30, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Tae Jong Ha, In Yong Yeo, Dae Woo Lee, Youn Sik Lee
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Publication number: 20210078422Abstract: A system of charging a battery of a vehicle is provide. The system includes a charger having a DC capacitor to which a DC voltage converted from an AC charge voltage is applied and a first DC converter that converts the magnitude of a voltage of the DC capacitor. A first battery is connected to the first DC converter and is charged with a DC voltage converted by the first DC converter. A second DC converter is connected to the battery and converts a magnitude of a voltage of the battery. A second battery receives a DC voltage converted by the second DC converter. A controller charges the DC capacitor up to a predetermined initial charge voltage using power stored in the second battery by operating the second DC converter and the first DC converter in a backward direction before the AC charge voltage is provided to the charger.Type: ApplicationFiled: November 11, 2019Publication date: March 18, 2021Inventors: Dae Woo Lee, Min Seong Choi, In Yong Yeo, Tae Jong Ha, Jin Myeong Yang, Woo Young Lee
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Publication number: 20210008995Abstract: A method of controlling charge of a vehicle battery includes: determining, by a control unit, whether a high voltage battery and a low voltage battery are charged in a first charging mode, a second charging mode, or a third charging mode; and charging at least one of the high voltage battery or the low voltage battery by controlling a first full-bridge circuit unit, a second full-bridge circuit unit, and a low voltage direct current (DC) converter unit based on the determined first, second or third charging mode.Type: ApplicationFiled: January 17, 2020Publication date: January 14, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Dae Woo LEE, Jae Eun CHA, Byung Gu KANG, Tae Jong HA
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Patent number: 10840820Abstract: An integrated converter is provided. The integrated converter includes a high-voltage charger having a power factor correction (PFC) device configured to compensate a low-frequency ripple and convert an alternating current (AC) voltage of a commercial power source into a direct current (DC) voltage. A first switching module is configured to convert the DC voltage output from the PFC device into an AC voltage and charge a high-voltage battery using the commercial power source and a low-voltage charger that is connected between the PFC device and the first switching module and the high-voltage charger configured to charge a low-voltage battery using the commercial power source or the high-voltage battery.Type: GrantFiled: July 22, 2019Date of Patent: November 17, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Young Yang, Gyu Yeong Choe, Min Seong Choi, Tae Jong Ha, Young Jin Kim, Jae Eun Cha, Dae Woo Lee, In Yong Yeo
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Publication number: 20200336080Abstract: An integrated converter is provided. The integrated converter includes a high-voltage charger having a power factor correction (PFC) device configured to compensate a low-frequency ripple and convert an alternating current (AC) voltage of a commercial power source into a direct current (DC) voltage. A first switching module is configured to convert the DC voltage output from the PFC device into an AC voltage and charge a high-voltage battery using the commercial power source and a low-voltage charger that is connected between the PFC device and the first switching module and the high-voltage charger configured to charge a low-voltage battery using the commercial power source or the high-voltage battery.Type: ApplicationFiled: July 22, 2019Publication date: October 22, 2020Inventors: Jin Young Yang, Gyu Yeong Choe, Min Seong Choi, Tae Jong Ha, Young Jin Kim, Jae Eun Cha, Dae Woo Lee, In Yong Yeo
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Publication number: 20200194162Abstract: A planar transformer is disclosed. The planar transformer includes a first core, a second core, a third core, and a fourth core, which are sequentially disposed; a primary coil unit having multiple primary substrates through which the first to fourth cores penetrate and on which primary coil patterns are formed such that magnetic flux is generated in a first direction in the first and fourth cores and in a second direction in the second and third cores; and a secondary coil unit having multiple secondary substrates through which the first to fourth cores penetrate and on which secondary coil patterns are formed, the secondary coil patterns formed on a periphery of the first to fourth cores such that current induced by the magnetic flux flowing in the first to fourth cores flows therein, wherein the multiple primary and secondary substrates form a multi-layer structure.Type: ApplicationFiled: July 12, 2019Publication date: June 18, 2020Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: In Yong YEO, Tae Jong HA, Dae Woo LEE, Youn Sik LEE