Patents by Inventor In Yong Yeo
In Yong Yeo 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: 10084444Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC (silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.Type: GrantFiled: November 21, 2016Date of Patent: September 25, 2018Assignee: Hyundai Motor CompanyInventors: Dae Woo Lee, Jin Myeong Yang, In Yong Yeo, Jin Young Yang, Youn Sik Lee, Byeong Seob Song, Woo Young Lee
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Patent number: 10056772Abstract: 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: GrantFiled: October 24, 2015Date of Patent: August 21, 2018Assignee: 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: 10056187Abstract: A trans inductor having a powdery magnetic substance and a power converter using the trans inductor are provided. The trans inductor and the power converter reduce peak current flowing in an inverter power module (IGBT), improve inverter efficiency, reduce output RMS current (output effective current) and reduce capacitor consumption by applying a material with properties that are resistant against current saturation instead of a core material of a conventional trans inductor employed in a power converter. Accordingly, an inductance decreasing rate due to core saturation when high current is generated is improved and current flowing in a switch device is prevented from being abruptly increased.Type: GrantFiled: November 16, 2016Date of Patent: August 21, 2018Assignee: Hyundai Motor CompanyInventors: Dae Woo Lee, Si Hun Yang, Jin Young Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
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Publication number: 20180166982Abstract: The present disclosure provides a converter controlling apparatus including a plurality of switching devices capable of controlling a pulse width modulation (PWM), the converter controlling apparatus including: an efficiency determiner configured to variably change resistance of a gate terminal, wherein a PWM signal for controlling the PWM of the switching device is applied to a gate terminal based on an amount of current flowing through the converter.Type: ApplicationFiled: October 27, 2017Publication date: June 14, 2018Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Youn Sik LEE, Dae Woo LEE, Tae Jong HA, In Yong YEO, Byeong Seob SONG
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Patent number: 9908424Abstract: 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: GrantFiled: April 23, 2015Date of Patent: March 6, 2018Assignee: Hyundai Motor CompanyInventors: Woo Young Lee, Tae Jong Ha, In Yong Yeo, Byeong Seob Song, Gyu Yeong Choe
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Publication number: 20180061566Abstract: A trans inductor having a powdery magnetic substance and a power converter using the trans inductor are provided. The trans inductor and the power converter reduce peak current flowing in an inverter power module (IGBT), improve inverter efficiency, reduce output RMS current (output effective current) and reduce capacitor consumption by applying a material with properties that are resistant against current saturation instead of a core material of a conventional trans inductor employed in a power converter. Accordingly, an inductance decreasing rate due to core saturation when high current is generated is improved and current flowing in a switch device is prevented from being abruptly increased.Type: ApplicationFiled: November 16, 2016Publication date: March 1, 2018Inventors: Dae Woo Lee, Si Hun Yang, Jin Young Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
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Publication number: 20180054195Abstract: Disclosed herein is a gate-driving apparatus configured for stably providing a voltage having a negative value to a gate of a switch, including a SiC(silicon carbide)-based FET (Field Effect Transistor), which requires a negative voltage having a negative value to implement a stable OFF state. The gate-driving apparatus includes a negative-voltage application circuit including a Zener diode and a capacitor connected in parallel to the Zener diode, wherein the Zener diode may have a cathode connected to a secondary coil of a pulse transformer and an anode connected to the gate of the switch.Type: ApplicationFiled: November 21, 2016Publication date: February 22, 2018Applicant: Hyundai Motor CompanyInventors: Dae Woo LEE, Jin Myeong YANG, In Yong YEO, Jin Young YANG, Youn Sik LEE, Byeong Seob SONG, Woo Young LEE
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Publication number: 20170349052Abstract: Switching devices of a primary circuit connected in parallel to each other and a method for operating the same are provided. The switching device includes a first module that is connected between a power supply component that applies power of a vehicle and a ground component. A plurality of first modules and a plurality of second modules are provided. Further, a second module is connected in parallel to the first module.Type: ApplicationFiled: November 9, 2016Publication date: December 7, 2017Inventors: Tae Jong Ha, In Yong Yeo, Dae Woo Lee, Youn Sik Lee
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Patent number: 9789774Abstract: A device and method are provided for a charger for vehicles. In particular, the charger includes, an AC/DC converter configured to convert a commercial alternating current power source to a direct current power source and a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source. The direct current power source is supplied to a battery. The DC/DC converter includes a snubber circuit that reduces the magnitude of a ripple current of the charging power source.Type: GrantFiled: September 3, 2015Date of Patent: October 17, 2017Assignee: Hyundai Motor CompanyInventors: Jin Young Yang, Dae Woo Lee, Jong Pil Kim, Si Hun Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
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Publication number: 20170109878Abstract: A method is proposed for identifying an anatomical structure within a spatial-temporal image (i.e. a series of frames captured as respective times). A current frame of spatial-temporal medical image is processed using information from one or more previous and/or subsequent temporal frames, to aid in the segmentation of an object or a region of interest (ROI) in a current frame. The invention is applicable to both two- and three-dimensional spatial-temporal images (i.e., 2D+time or 3D+time), and in particular to cardiac magnetic resonance (CMR images). An initialisation process for this method segments the left ventricle (LV) in a CMR image by a fuzzy c-means (FCM) clustering algorithm which employs a circular shape function as part of the definition of the dissimilarity measure.Type: ApplicationFiled: February 27, 2015Publication date: April 20, 2017Applicants: Agency for Science, Technology and Research, Singapore Health Services PTE LTDInventors: Xulei YANG, Yi SU, Si Yong YEO, Liang ZHONG, Ru San TAN
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Patent number: 9595379Abstract: A cooling device for a transformer, capable of reducing heat generation from windings and a core, is provided. The cooling device for the transformer includes a primary winding and a second winding wound around a center part of the core and separated from each other. A heat-dissipating panel for releasing heat generated from the core, the primary winding, and the secondary winding to the exterior using heat conductance is inserted between the primary winding and the secondary winding. In addition, the heat-dissipating panel is configured to release heat using exposed edges of the primary winding and the secondary winding.Type: GrantFiled: December 12, 2014Date of Patent: March 14, 2017Assignee: Hyundai Motor CompanyInventors: In Yong Yeo, Byeong Seob Song, Dae Woo Lee, Jin Young Yang, Woo Young Lee
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Patent number: 9522521Abstract: In various embodiments, an apparatus for separating a stacked arrangement including a first layer, a second layer and a release layer between the first layer and the second layer may be provided. The apparatus may include an attachment surface configured to suspend the stacked arrangement by attaching to the first layer. The apparatus may further include an actuating mechanism configured to form a curvature of the first layer by bending the attachment surface. The apparatus may also include a holder to hold an etchant for etching the release layer to separate the first layer from the second layer.Type: GrantFiled: April 17, 2013Date of Patent: December 20, 2016Assignee: Nanyang Technological UniversityInventors: Soon Fatt Yoon, Dawei Xu, Chiew Yong Yeo
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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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Publication number: 20160303984Abstract: A vehicle charging device is provided and efficiently operates a converter to charge a battery mounted within vehicles. The vehicle charging device includes a power-supply unit that provides a direct current (DC) voltage and a DC/DC converter that converts the DC voltage received from the power-supply unit into a battery charging voltage. The converter also includes an active snubber that is mounted to a secondary coil of a main transformer. The converter is configured to reduce a peak noise generated from the secondary coil using the active snubber and transmit the resultant voltage having the reduced peak noise to an output terminal.Type: ApplicationFiled: October 14, 2015Publication date: October 20, 2016Inventors: Dea Woo Lee, Si Hun Yang, Jin Young Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
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Publication number: 20160288660Abstract: A device and method are provided for a charger for vehicles. In particular, the charger includes, an AC/DC converter configured to convert a commercial alternating current power source to a direct current power source and a DC/DC converter configured to convert the direct current power source applied from the AC/DC converter to a battery charging power source. The direct current power source is supplied to a battery. The DC/DC converter includes a snubber circuit that reduces the magnitude of a ripple current of the charging power source.Type: ApplicationFiled: September 3, 2015Publication date: October 6, 2016Inventors: Jin Young Yang, Dae Woo Lee, Jong Pil Kim, Si Hun Yang, In Yong Yeo, Byeong Seob Song, Woo Young Lee
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Patent number: 9444390Abstract: An apparatus and a method for that reduce a common mode voltage are provided. The apparatus includes a detecting unit that is configured to detect a common mode voltage between a drive shaft and a frame of a drive motor. In addition, a gate resistance unit of a power module is connected to the drive motor. A controller is configured to adjust a magnitude of resistance of the gate resistance unit, based on a magnitude of the detected common-mode voltage and a magnitude of a predetermined reference voltage.Type: GrantFiled: December 3, 2014Date of Patent: September 13, 2016Assignee: Hyundai Motor CompanyInventor: Joo Yong Yeo
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Patent number: 9379566Abstract: An apparatus for controlling a charge for a battery is provided. The apparatus includes an input unit that is configured to convert alternating current (AC) input power into direct current (DC) power. A first converter is configured to store or output the DC power and a circuit unit is configured to filter or boost output power based on a normal operation state or an instantaneous power failure state of the AC input power. In addition, a second converter is configured to convert the filtered or boosted power and supply the power to a high voltage battery.Type: GrantFiled: April 2, 2014Date of Patent: June 28, 2016Assignee: Hyundai Motor CompanyInventors: Woo-Young Lee, Jin-Young Yang, Byeong-Seob Song, Dae-Woo Lee, In-Yong Yeo
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Publication number: 20160141095Abstract: An inductor for a high side DC/DC convertor is provided for an environmentally friendly vehicle, which improves the property of DC bias. The inductor includes a core having a central core around which a wire is wound, a front core and a rear core that are attached integrally to a front and a rear of the central core, respectively, and a left core and a right core that are spaced from both sides of the central core and are attached integrally to the front core and the rear core. Additionally, a wire is wound around the central core in a length direction thereof.Type: ApplicationFiled: September 25, 2015Publication date: May 19, 2016Inventors: Woo Young Lee, Dae Woo Lee, Si Hun Yang, Jin Young Yang, In Yong Yeo, Byeong Seob Song
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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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Publication number: 20160064134Abstract: A cooling device for a transformer, capable of reducing heat generation from windings and a core, is provided. The cooling device for the transformer includes a primary winding and a second winding wound around a center part of the core and separated from each other. A heat-dissipating panel for releasing heat generated from the core, the primary winding, and the secondary winding to the exterior using heat conductance is inserted between the primary winding and the secondary winding. In addition, the heat-dissipating panel is configured to release heat using exposed edges of the primary winding and the secondary winding.Type: ApplicationFiled: December 12, 2014Publication date: March 3, 2016Inventors: In Yong Yeo, Byeong Seob Song, Dae Woo Lee, Jin Young Yang, Woo Young Lee