Patents by Inventor Hong-Sun Park
Hong-Sun Park 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: 8253378Abstract: A battery management system according to the present invention comprises a battery module consisted of a plurality of batteries connected in series; a switch module connected in parallel to the battery module; a voltage sensor measuring a voltage of each battery composing the battery module; a charge equalizer causing each battery composing the battery module to be charged, discharged or charged/discharged; and a microprocessor controlling the switch module to determine whether to charge or discharge each battery composing the battery module according to the voltage values measured by the voltage sensor and; wherein the voltage sensor and the charge equalizer are connected in parallel to each battery composing the battery module by the switch module.Type: GrantFiled: October 16, 2008Date of Patent: August 28, 2012Assignee: SK Innovation Co., Ltd.Inventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Hong Sun Park, Chol Ho Kim
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Patent number: 8217623Abstract: The present invention relates, in general, to a battery voltage equalization apparatus and method, and, more particularly, to a charge equalization apparatus and method, which decrease the withstand voltages of semiconductor switching elements while maintaining charge equalization performance, thus making it easy to implement the secondary windings of transformers while reducing the costs of the charge equalization apparatus. The charge equalization apparatus includes N first transformers (T1 to Tn) connected in series with N series-connected batteries (B1 to Bn) and adapted to decrease voltages of overcharged batteries among the N batteries. A charge storage device (Cdump) stores energy supplied from the first transformers. A second transformer (TS) redistributes energy stored in the charge storage device to the N series-connected batteries.Type: GrantFiled: June 13, 2007Date of Patent: July 10, 2012Assignees: SK Energy Co. Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Publication number: 20120086390Abstract: Provided are a charge equalization apparatus and method for a battery string connected in series, and more particularly, are a charge equalization apparatus and method that efficiently perform charge equalization while reducing entire complexity and volume and lowering production costs through a configuration that an individual battery included in a battery string shares a single voltage sensing module and a single charge equalizing module; a switch block of a two-stage structure forms a current path for measuring voltage of individual batteries included in the battery string, and at the same time, forms a charging or discharding path of a low-charged or over-charged battery among the battery strings; and a switch device having low withstand voltage is used.Type: ApplicationFiled: January 27, 2010Publication date: April 12, 2012Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, SK INNOVATION CO., LTD.Inventors: Jae Hwan Lim, Sang Hyun Park, Joong Hui Lee, Gun-Woo Moon, Hong-Sun Park, Chol-Ho Kim
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Patent number: 8120322Abstract: The present invention relates to a charge equalization apparatus, in which series-connected batteries are divided into modules having certain sizes, and intra-module charge equalization and inter-module charge equalization are simultaneously performed, thus improving charge equalization performance and reducing the circuit size.Type: GrantFiled: February 5, 2008Date of Patent: February 21, 2012Assignees: SK Energy Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Chong Eun Kim, Hong Sun Park, Chol Ho Kim
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Publication number: 20110285352Abstract: An automatic charge equalization apparatus using a regulated voltage source according to the present invention comprises a battery module having a plurality of batteries connected in series; a battery string having M (natural number of M?2) battery modules connected in series: a regulated voltage source which is provided for each battery module and outputs and maintains an average voltage of the battery string; a bidirectional switch block which is provided for each battery module between the battery module and the regulated voltage source to connect each battery to an output of the regulated voltage source by forming a parallel current moving path to each battery composing the battery module; and a microprocessor controlling the bidirectional switch block, wherein each battery composing the battery module shares the regulated voltage source by the bidirectional switch block and the microprocessor controls the bidirectional switch block to successively connect the batteries composing the battery module with tType: ApplicationFiled: April 17, 2009Publication date: November 24, 2011Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, SK INNOVATION CO., LTD.Inventors: Jae Hwan Lim, Sang Hyun Park, Joong Hui Lee, Gun-Woo Moon, Hong-Sun Park, Chol-Ho Kim
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Patent number: 8008890Abstract: The present invention relates to a charge equalization apparatus, which can enable the primary windings and the secondary windings of transformers to be easily manufactured, can control the flow of charges into batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into batteries that are currently being charged.Type: GrantFiled: February 5, 2008Date of Patent: August 30, 2011Assignees: SK Energy Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Chong Eun Kim, Hong Sun Park, Chol Ho Kim
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Publication number: 20110187327Abstract: The present invention relates to a charge equalization apparatus, which allows the primary and secondary windings of a transformer to be easily fabricated, can control the flow of charge to batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into a battery currently being charged.Type: ApplicationFiled: December 17, 2010Publication date: August 4, 2011Applicants: SK ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Patent number: 7982429Abstract: The present invention relates to a charge equalization apparatus, which allows the primary and secondary windings of a transformer to be easily fabricated, can control the flow of charge to batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into a battery currently being charged.Type: GrantFiled: December 17, 2010Date of Patent: July 19, 2011Assignees: SK Energy Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Patent number: 7939965Abstract: The present invention relates, in general, to a charge equalization apparatus with series-connected battery cells and, more particularly, to a charge equalization apparatus, in which series-connected battery cells (B1 to BN) are connected in parallel with the primary windings (Mi 1 to M1N) of transformers (T1 to TN), switches (S1 to SN) for controlling the flow of current of the primary windings are connected in series with the primary windings (M1 1 to M1N), and multiple secondary windings (M21 to M2N) corresponding to the primary windings are connected in parallel with each other.Type: GrantFiled: June 12, 2007Date of Patent: May 10, 2011Assignees: SK Energy Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Publication number: 20110089898Abstract: A two-stage charge equalization apparatus for a series-connected battery string having a two-stage DC-DC converter including a first DC-DC converter; and a second DC-DC converter which is inputted. A battery string is divided into one or more battery modules having a plurality of battery cells connected in series, and a current conversion switch module forms a path of the charge current between the battery module and the second DC-DC converter to allow the charge current to be applied to the particular battery cell composing the battery module and controls an application direction of the charge current. A microprocessor determines a battery cell to be charged of a low-charged battery cell and controls the current conversion switch module to allow the charge current to be applied to the battery cell to be charged.Type: ApplicationFiled: April 17, 2009Publication date: April 21, 2011Applicants: SK ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Joong Hui Lee, Jae Hwan Lim, Sang Hyun Park, Gun-Woo Moon, Hong-Sun Park, Chol-Ho Kim
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Patent number: 7880433Abstract: The present invention relates to a charge equalization apparatus, which allows the primary and secondary windings of a transformer to be easily fabricated, can control the flow of charge to batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into a battery currently being charged.Type: GrantFiled: June 13, 2007Date of Patent: February 1, 2011Assignees: SK Energy Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Publication number: 20100283433Abstract: The present invention relates, in general, to a charge equalization apparatus for batteries and, more particularly, to a charge equalization apparatus, in which the primary windings (M11 to M1N) of a number of transformers (T1 to TN) corresponding to the number of battery cells are connected in parallel with each other, a switch (S) for controlling the flow of current of the primary windings (M11 to M1N) of the parallel-connected transformers is connected in series with the parallel-connected primary windings, respective secondary windings (M21 to M2N) corresponding to the primary windings are connected in parallel with the battery cells, and the battery cells are connected in series with each other.Type: ApplicationFiled: June 12, 2007Publication date: November 11, 2010Applicants: SK ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Publication number: 20100231166Abstract: A battery management system according to the present invention comprises a battery module consisted of a plurality of batteries connected in series; a switch module connected in parallel to the battery module; a voltage sensor measuring a voltage of each battery composing the battery module; a charge equalizer causing each battery composing the battery module to be charged, discharged or charged/discharged; and a microprocessor controlling the switch module to determine whether to charge or discharge each battery composing the battery module according to the voltage values measured by the voltage sensor and; wherein the voltage sensor and the charge equalizer are connected in parallel to each battery composing the battery module by the switch module.Type: ApplicationFiled: October 16, 2008Publication date: September 16, 2010Applicants: SK ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Hong Sun Park, Chol Ho Kim
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Publication number: 20100207579Abstract: A two-stage charge equalization apparatus for a series-connected battery string comprises a battery module having a plurality of batteries connected in series; a battery string having M (M?2) battery modules connected in series; M charge control switch modules connected in parallel to each of the M battery modules; M second DC/DC converters connected to each of the M charge control switch modules; a single first DC/DC converter connected to the M second DC/DC converter; and a microprocessor controlling the charge control switch module, wherein the first DC/DC converter is inputted with an overall potential of the battery string and outputs a potential lower than the potential inputted and each of batteries composing the battery module shares the second DC/DC converter using the charge control switch module.Type: ApplicationFiled: October 16, 2008Publication date: August 19, 2010Applicants: SK ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Hong Sun Park, Chol Ho Kim
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Publication number: 20100207578Abstract: The present invention relates to an automatic charge equalization apparatus and method having an automatic PWM generating means for a series-connected battery string. The automatic charge equalization method and apparatus for a series-connected battery string according to the present invention can improve charge equalization by accomplishing charge equalization operation after comparing the potential of the corresponding battery cell with the average potential of the plurality of battery cells including the corresponding battery cell upon charging or discharging the corresponding battery cell.Type: ApplicationFiled: October 16, 2008Publication date: August 19, 2010Applicants: SK ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Chong Eun Kim, Hong Sun Park, Chol Ho Kim
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Publication number: 20100148726Abstract: The present invention relates to a charge equalization apparatus, in which series-connected batteries are divided into modules having certain sizes, and intra-module charge equalization and inter-module charge equalization are simultaneously performed, thus improving charge equalization performance and reducing the circuit size.Type: ApplicationFiled: February 5, 2008Publication date: June 17, 2010Applicants: ENERGY CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Chong Eun Kim, Hong Sun Park, Chol Ho Kim
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Patent number: 7710918Abstract: A pilot designing method in an uplink OFDMA system is provided. In the uplink OFDMA system, communications are carried out in a frame divided into time-frequency lattices, and each time-frequency lattice includes a plurality of data symbol periods and a plurality of pilot symbol periods intermittently arranged with respect to the data symbol periods. The frame is divided into a plurality of blocks. The blocks are allocated to the terminals. A predetermined allocated pilot time-frequency lattice is shared between adjacent terminals.Type: GrantFiled: March 11, 2005Date of Patent: May 4, 2010Assignees: Samsung Electronics Co., Ltd, Korea Advanced Institute of Science & TechnologyInventors: Young-Ho Jung, Jae-Hak Chung, Chan-Soo Hwang, Seung-Hoon Nam, Yong-Hoon Lee, Hong-Sun Park
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Publication number: 20100007308Abstract: The present invention relates to a charge equalization apparatus, which can enable the primary windings and the secondary windings of transformers to be easily manufactured, can control the flow of charges into batteries depending on the charged states of series-connected batteries, and can prevent overcurrent from flowing into batteries that are currently being charged.Type: ApplicationFiled: February 5, 2008Publication date: January 14, 2010Inventors: Joong Hui Lee, Soo Yeup Jang, Jeon Keun Oh, Gun Woo Moon, Chong Eun Kim, Hong Sun Park, Chol Ho Kim
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Publication number: 20090322155Abstract: The present invention relates, in general, to a charge equalization apparatus with series-connected battery cells and, more particularly, to a charge equalization apparatus, in which series-connected battery cells (B1 to BN) are connected in parallel with the primary windings (Mi 1 to M1N) of transformers (T1 to TN), switches (S1 to SN) for controlling the flow of current of the primary windings are connected in series with the primary windings (M1 1 to M1N), and multiple secondary windings (M21 to M2N) corresponding to the primary windings are connected in parallel with each other.Type: ApplicationFiled: June 12, 2007Publication date: December 31, 2009Applicants: SK Energy Co., Ltd., Korea Advanced Institute of Science and TechnologyInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park
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Publication number: 20090302803Abstract: The present invention relates, in general, to a battery voltage equalization apparatus and method, and, more particularly, to a charge equalization apparatus and method, which decrease the withstand voltages of semiconductor switching elements while maintaining charge equalization performance, thus making it easy to implement the secondary windings of transformers while reducing the costs of the charge equalization apparatus. The charge equalization apparatus includes N first transformers (T1 to Tn) connected in series with N series-connected batteries (B1 to Bn) and adapted to decrease voltages of overcharged batteries among the N batteries. A charge storage device (Cdump) stores energy supplied from the first transformers. A second transformer (TS) redistributes energy stored in the charge storage device to the N series-connected batteries.Type: ApplicationFiled: June 13, 2007Publication date: December 10, 2009Applicants: SK ENERGY CO., LTD., KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jeon Keun Oh, Joong Hui Lee, Soo Yeup Jang, Gun Woo Moon, Chong Eun Kim, Hong Sun Park