Patents by Inventor Yeong Choe
Yeong Choe 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: 20170101016Abstract: A wireless charging method performed by a wireless power receiving apparatus for a vehicle includes: producing a resonance between a primary pad located outside of the vehicle and a secondary pad installed in the vehicle based on an initial switching frequency; and tuning a switching frequency of a direct current (DC) to DC (DC-to-DC) converter within a range determined based on the initial switching frequency, according to an output voltage outputted based on a resonance of the secondary pad which is caused by the primary pad.Type: ApplicationFiled: October 10, 2016Publication date: April 13, 2017Inventors: Hyun Wook Seong, Woo Young Lee, Gyu Yeong Choe
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Publication number: 20160336776Abstract: Disclosed herein is a wireless charging device including a heat radiation panel having a radiation plate and a radiation fin protruding from an upper surface of the radiation plate; a core section arranged in a region other than the protruding radiation fin, the core section being made of a material having high permeability; and a coil section arranged on the core section so as to come into contact with the protruding radiation fin.Type: ApplicationFiled: October 24, 2015Publication date: November 17, 2016Applicant: HYUNDAI MOTOR COMPANYInventors: Woo Young Lee, Si Hun Yang, In Yong Yeo, Tae Jong Ha, Gyu Yeong Choe, Hyun Wook Seong
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Patent number: 9347507Abstract: Disclosed herein are an electronic parking brake (EPB) system and a method of controlling the same. The EPB system including an EPB actuator which has a motor and provides disc brakes provided in wheels with parking brake power includes a parking switch configured to be turned on or off by a driver, a current detector configured to detect a motor current flowing through the motor of the EPB actuator, a motor driving unit configured to drive the motor of the EPB actuator, and an electronic control unit which applies a parking brake in which the motor of the EPB actuator is rotated by the motor driving unit in one direction to provide the disc brakes with the parking brake power when the parking switch is turned on, calculates an impedance of the motor when a motor current value detected by the current detector is higher than a preset value while applying the parking brake, and determines whether a motor stuck failure occurs based on the calculated impedance of the motor.Type: GrantFiled: June 19, 2015Date of Patent: May 24, 2016Assignee: MANDO CORPORATIONInventors: Jin Yeong Choe, Dong-Il Chang
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Publication number: 20160137072Abstract: A wireless charging system of a vehicle includes: a transmitting coil module including a plurality of transmitting coils; and a receiving coil module including a plurality of receiving coils receiving power by electronic resonance with the plurality of transmitting coils. The plurality of transmitting coils have a winding structure which is formed by a conductive wire causing a direction of a magnetic field generated by any one of the plurality of transmitting coils different from a direction of a magnetic field generated by a transmitting coil directly adjacent to the one transmitting coil by making a current flow in the plurality of transmitting coils.Type: ApplicationFiled: April 23, 2015Publication date: May 19, 2016Inventors: Woo Young Lee, Tae Jong Ha, In Yong Yeo, Byeong Seob Song, Gyu Yeong Choe
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Patent number: 9321359Abstract: A power supply system and method for charging a battery of a vehicle are provided and include a charger that is configured to charge the battery and a charging controller that is configured to receive a voltage to charge the battery and operate the charger. An auxiliary battery is configured to supply a first DC voltage to operate the charging controller and a power supplier is configured to generate a second DC voltage greater than the first DC voltage using external AC power, and to supply the second DC voltage to the charging controller as a driving power source to charge the battery. First and second diodes are respectively installed at output ends of the power supplier and the auxiliary battery, a cathode voltage of the second diode is increased when the power supplier supplies the second DC voltage, and the first DC voltage of the auxiliary battery is blocked.Type: GrantFiled: December 4, 2013Date of Patent: April 26, 2016Assignee: Hyundai Motor CompanyInventors: Hun Kong, Dongjun Lee, Gyu Yeong Choe, Gun Soo Kang
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Publication number: 20150369317Abstract: Disclosed herein are an electronic parking brake (EPB) system and a method of controlling the same. The EPB system including an EPB actuator which has a motor and provides disc brakes provided in wheels with parking brake power includes a parking switch configured to be turned on or off by a driver, a current detector configured to detect a motor current flowing through the motor of the EPB actuator, a motor driving unit configured to drive the motor of the EPB actuator, and an electronic control unit which applies a parking brake in which the motor of the EPB actuator is rotated by the motor driving unit in one direction to provide the disc brakes with the parking brake power when the parking switch is turned on, calculates an impedance of the motor when a motor current value detected by the current detector is higher than a preset value while applying the parking brake, and determines whether a motor stuck failure occurs based on the calculated impedance of the motor.Type: ApplicationFiled: June 19, 2015Publication date: December 24, 2015Inventors: Jin Yeong CHOE, Dong-Il CHANG
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Patent number: 9110582Abstract: A screen change control method based on input signals and a mobile terminal supporting the same are disclosed. The mobile terminal includes a display panel for outputting a screen assigned to a user function, and a control unit for collecting screen ratio information based on at least one of a proportion of a current screen on the display panel to a full screen assigned to the user function and a ratio of enlargement or reduction by zooming, and for automatically adjusting an amount of screen changes for an input signal according to the screen ratio information.Type: GrantFiled: November 2, 2011Date of Patent: August 18, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Sung Hwan Baek, Joon Yeong Choe
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Publication number: 20150175020Abstract: A charging method for a vehicle is provided that includes receiving, by a controller, a control pilot (CP) signal from electric vehicle supply equipment (EVSE) and smoothing the CP signal using a duty ratio of the CP signal. In addition, the controller is configured to compensate the smoothed CP signal and determine whether the compensated CP signal is within a predetermined range. The vehicle battery is then charged when the compensated CP signal is within the predetermined range.Type: ApplicationFiled: August 15, 2014Publication date: June 25, 2015Inventors: Jeeheon Kim, Gyu Yeong Choe, Chang Dug Lee
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Patent number: 8880262Abstract: Disclosed herein is a system and method for incipient drive of a slow charger for a vehicle. Specifically, an incipient drive entry of the slow charger used when a battery is charged in an electric vehicle (EV) or a plug-in hybrid electric vehicle (PHEV) may be performed. The method includes operating, by a controller, a regulator by outputting a control pilot (CP) signal from electric vehicle supply equipment (EVSE). Additionally, the method includes operating, by the controller, a flip-flop by outputting a driving signal from the regulator and operating a switching mode power supply (SMPS) by outputting a driving signal from the flip-flop. The method further includes resetting, by the controller, the flip-flop by outputting a reset signal from a central processing unit (CPU) turned on by the SMPS.Type: GrantFiled: April 18, 2013Date of Patent: November 4, 2014Assignee: Hyundai Motor CompanyInventors: Sang Hoon Kwak, Jee Hye Jeong, Dong Jun Lee, Gyu Yeong Choe, Gun Soo Kang
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Publication number: 20140253018Abstract: A power supply system and method for charging a battery of a vehicle are provided and include a charger that is configured to charge the battery and a charging controller that is configured to receive a voltage to charge the battery and operate the charger. An auxiliary battery is configured to supply a first DC voltage to operate the charging controller and a power supplier is configured to generate a second DC voltage greater than the first DC voltage using external AC power, and to supply the second DC voltage to the charging controller as a driving power source to charge the battery. First and second diodes are respectively installed at output ends of the power supplier and the auxiliary battery, a cathode voltage of the second diode is increased when the power supplier supplies the second DC voltage, and the first DC voltage of the auxiliary battery is blocked.Type: ApplicationFiled: December 4, 2013Publication date: September 11, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Hun Kong, Dongjun Lee, Gyu Yeong Choe, Gun Soo Kang
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Patent number: 8598741Abstract: There are disclosed a photovoltaic and fuel cell (PV-FC) hybrid generation system using a single converter and a single inverter, and a method of controlling the same. The PV-FC hybrid generation system includes a DC/DC converter unit converting an FC output voltage from a fuel cell, converting chemical energy into electrical energy, into a preset voltage, a DC link unit commonly connecting an output terminal of a photovoltaic cell, converting the sunlight into electrical energy, and an output terminal of the DC/DC converter unit, and linking the converted FC output voltage from the DC/DC converter unit with a PV output voltage from the photovoltaic cell to thereby generate a DC voltage, and a DC/AC inverter unit converting the DC voltage from the DC link unit into a preset AC voltage. Furthermore, a method of controlling the PV-FC hybrid generation system is proposed.Type: GrantFiled: December 21, 2009Date of Patent: December 3, 2013Assignees: Samsung Electro-Mechanics Co, Ltd., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Jin Wook Kim, Byoung Kuk Lee, Jong Soo Kim, Gyu Yeong Choe, Jong Sun Kim, Il Woon Lee, Jae Sun Won, Jong Hae Kim, Dong Seong Oh
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Patent number: 8493020Abstract: There are provided an apparatus and method for charging and discharging a photovoltaic PCS integrated battery applied to a system that includes a first DC/DC converter 110 connected to a solar cell 10, a DC/AC inverter 120, a DC link unit 130 connected in common to output terminals of the first DC/DC converter 110 and the DC/AC inverter 120, and a second DC/DC converter 140 having a bidirectional DC/DC conversion function connected between the DC rink unit 130 and the battery 30. The present invention calculates the amount of photovoltaic power produced by the solar cell 10 based on voltage and current detected in the voltage/current detector 200, determines one of predetermined control modes according to the amount of photovoltaic power and the connection or not of the battery, and controls the first DC/DC converter 110, the second DC/DC converter, and the DC/AC inverter according to the determined control mode.Type: GrantFiled: October 7, 2010Date of Patent: July 23, 2013Assignees: Samsung Electro-Mechanics Co., Ltd., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Tae Won Lee, Dong Seong Oh, Jin Wook Kim, Hee Sung Moon, Jeong Min Ko, Jong Soo Kim, Chung Yuen Won, Byoung Kuk Lee, Gyu Yeong Choe
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Patent number: 8369117Abstract: There is provided an integrated control method for eliminating a low frequency ripple in a power conversion system for a fuel cell, more particularly, a control method of a power conversion system capable of eliminating a low frequency ripple, controlling a DC link voltage, and controlling an output power and a system using the same control method. A power conversion system (PCS) that converts an output of a DC power supply received from an external power supply includes a converter that converts a voltage of the input power supply; an inverter that converts an output voltage of the converter into an AC voltage; and a converter control module that outputs a PWM signal for controlling a switch of the converter, and after receiving a power instruction value, the converter control module generates the PWM signal for controlling the converter based on the power instruction value.Type: GrantFiled: December 7, 2009Date of Patent: February 5, 2013Assignee: Sungyunkwan University Foundation for Corporate CollaborationInventors: Byoung Kuk Lee, Jong Soo Kim, Hyun Soo Kang, Gyu Yeong Choe
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Patent number: 8269372Abstract: There is provided a photovoltaic and fuel cell hybrid generation system using dual converters and a single inverter and a method of controlling the same. A photovoltaic and fuel cell (PV-FC) hybrid generation system according to an aspect of the invention may include: a PV DC/DC converter unit converting a PV output voltage into a predetermined voltage; an FC DC/DC converter unit converting an FC output voltage into a predetermined voltage; a DC link unit commonly connecting an output terminal of the PV DC/DC converter unit and an output terminal of the FC DC/DC converter unit, and linking the converted PV output voltage from the PV DC/DC converter unit to the converted FC output voltage from the FC DC/DC converter unit to thereby generate a DC voltage; and a DC/AC inverter unit converting the DC voltage from the DC link unit into a predetermined AC voltage.Type: GrantFiled: December 21, 2009Date of Patent: September 18, 2012Assignees: Samsung Electro-Mechanics Co., Ltd., Sungkyunkwan University Foundation for Corporate CollaborationInventors: Jin Wook Kim, Chung Yuen Won, Jong Soo Kim, Byoung Kuk Lee, Gyu Yeong Choe, Hee Sung Moon, Jeong Min Ko, Dong Seong Oh, Tae Won Lee, Jae Sun Won
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Patent number: 8232779Abstract: A method for selecting the optimum number of phases for a converter is provided, which selects a duty range using an input voltage and an output voltage, obtains ripple values for multiple phases in the duty range, and selects the optimum number of phases using the corresponding ripple values. The method for selecting the optimum number of phases for a converter includes a duty range selection step of selecting a duty range using an input voltage and an output voltage, a ripple value calculation step of obtaining ripple values for multiple phases within the selected duty range, a range ripple selection step of selecting one or more phases in the duty range, and a rated ripple selection step of selecting the phases having the minimum ripple value in a rated duty among the phases selected in the range ripple selection step.Type: GrantFiled: February 18, 2009Date of Patent: July 31, 2012Assignee: Sungkyunkwan University Foundation for Corporate CollaborationInventors: Byoung-Kuk Lee, Jong-Soo Kim, Gyu-Yeong Choe
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Publication number: 20120110501Abstract: A screen change control method based on input signals and a mobile terminal supporting the same are disclosed. The mobile terminal includes a display panel for outputting a screen assigned to a user function, and a control unit for collecting screen ratio information based on at least one of a proportion of a current screen on the display panel to a full screen assigned to the user function and a ratio of enlargement or reduction by zooming, and for automatically adjusting an amount of screen changes for an input signal according to the screen ratio information.Type: ApplicationFiled: November 2, 2011Publication date: May 3, 2012Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Sung Hwan BAEK, Joon Yeong CHOE
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Publication number: 20110273130Abstract: There are provided an apparatus and method for charging and discharging a photovoltaic PCS integrated battery applied to a system that includes a first DC/DC converter 110 connected to a solar cell 10, a DC/AC inverter 120, a DC link unit 130 connected in common to output terminals of the first DC/DC converter 110 and the DC/AC inverter 120, and a second DC/DC converter 140 having a bidirectional DC/DC conversion function connected between the DC rink unit 130 and the battery 30. The present invention calculates the amount of photovoltaic power produced by the solar cell 10 based on voltage and current detected in the voltage/current detector 200, determines one of predetermined control modes according to the amount of photovoltaic power and the connection or not of the battery, and controls the first DC/DC converter 110, the second DC/DC converter, and the DC/AC inverter according to the determined control mode.Type: ApplicationFiled: October 7, 2010Publication date: November 10, 2011Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Tae Won LEE, Dong Seong OH, Jin Wook KIM, Hee Sung MOON, Jeong Min KO, Jong Soo KIM, Chung Yuen WON, Byoung Kuk LEE, Gyu Yeong CHOE
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Patent number: 8048802Abstract: A method for forming an interlayer insulating film includes providing a semiconductor substrate having a first substrate region with a plurality of metal wiring and a second substrate region having no metal wiring, and then forming an insulating film dummy pattern in the second substrate region, wherein the insulating film dummy pattern has the same thickness as the metal wiring, and then forming an interlayer insulating film over the semiconductor substrate including the insulating film dummy pattern.Type: GrantFiled: August 25, 2008Date of Patent: November 1, 2011Assignee: Dongbu HiTek Co., Ltd.Inventor: Ho-Yeong Choe
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Patent number: 8008148Abstract: A method for manufacturing a semiconductor device includes sequentially forming an insulating layer and a metal layer over a semiconductor substrate, forming a photoresist pattern over the metal layer and etching the metal layer using the photoresist pattern as an etching mask to form a metal line pattern, subjecting the photoresist pattern to a reflow process to form a photoresist pattern over the metal layer and etching the metal layer using the photoresist pattern as an etching mask to form a metal line pattern, subjecting the photoresist pattern to a reflow process to form a reflowed photoresist pattern surrounding the metal line pattern, forming a metal-insulator-metal (MIM) layer over the semiconductor substrate provided with the reflowed photoresist pattern, and removing the MIM layer arranged over the photoresist pattern and the photoresist pattern.Type: GrantFiled: May 7, 2009Date of Patent: August 30, 2011Assignee: Dongbu HiTek Co., Ltd.Inventor: Ho-Yeong Choe
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Publication number: 20100156185Abstract: There are disclosed a photovoltaic and fuel cell (PV-FC) hybrid generation system using a single converter and a single inverter, and a method of controlling the same. The PV-FC hybrid generation system includes a DC/DC converter unit converting an FC output voltage from a fuel cell, converting chemical energy into electrical energy, into a preset voltage, a DC link unit commonly connecting an output terminal of a photovoltaic cell, converting the sunlight into electrical energy, and an output terminal of the DC/DC converter unit, and linking the converted FC output voltage from the DC/DC converter unit with a PV output voltage from the photovoltaic cell to thereby generate a DC voltage, and a DC/AC inverter unit converting the DC voltage from the DC link unit into a preset AC voltage. Furthermore, a method of controlling the PV-FC hybrid generation system is proposed.Type: ApplicationFiled: December 21, 2009Publication date: June 24, 2010Applicants: Samsung Electro-Mechanics Co., Ltd., SUNGKYUNKWAN UNIVERSITY Foundation for Corporate CollaborationInventors: Jin Wook Kim, Byoung Kuk Lee, Jong Soo Kim, Gyu Yeong Choe, Jong Sun Kim, Il Woon Lee, Jae Sun Won, Jong Hae Kim, Dong Seong Oh