Patents by Inventor Byeong Seob Song
Byeong Seob Song 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: 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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Publication number: 20180141443Abstract: A vehicle charging system includes a power transmitter including at least one voltage converter configured to allow a vehicle charging mode to be changed by a plurality of switches and a magnetic field generator configured to generate a magnetic field corresponding to a voltage converted by the voltage converter; and a power receiver including a current inductor configured to allow an electrical signal to be induced by the magnetic field generated by the magnetic field generator, a rectifier configured to rectify the induced electrical signal and a battery configured to be charged by the electrical signal rectified by the rectifier.Type: ApplicationFiled: December 16, 2016Publication date: May 24, 2018Inventors: Woo Young LEE, Byeong Seob SONG, JaeEun CHA, Gyu Yeong CHOE, Minjung KIM, Jongeun BYUN, Minkook KIM, Dongmyoung JOO, Sangjoon ANN, Byoung Kuk LEE
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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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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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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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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: 9409489Abstract: A magnetic connector apparatus that charges an electric vehicle through contactless magnetic coupling. The magnetic connector apparatus includes an external charger, an inlet, and a magnetic connector. The inlet is connected to a rechargeable battery of the vehicle. The magnetic connector is connected to a power source of the external charger and is transferred to the vehicle to be inserted into the inlet.Type: GrantFiled: June 28, 2013Date of Patent: August 9, 2016Assignee: Hyundai Motor CompanyInventors: Woo Young Lee, Byeong Seob Song, Dae Woo Lee, Jin Young Yang, Jong Pil Kim
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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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Patent number: 9350192Abstract: An on-board charger for charging a battery of an eco-friendly vehicle and a method for charging a battery using the on-board charger are provided. The on board charger reduces an output current ripple by improving a snubber circuit unit of the on-board charger for charging a battery in plug-in hybrid and electric vehicles. In addition, the on-board charger for charging a battery of an eco-friendly vehicle reduces a surge voltage generated in a rectifier diode and reduces an output current ripple by arranging two capacitors and three diodes in a transformer secondary rectifier of the on-board charger.Type: GrantFiled: October 28, 2013Date of Patent: May 24, 2016Assignee: Hyundai Motor CompanyInventors: Dae Woo Lee, Byeong Seob Song, Jin Young Yang, Woo Young Lee
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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
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Patent number: 9240698Abstract: A switching power supply device includes a full-bridge circuit comprising a plurality of switching devices, a transformer comprising a primary coil and a secondary coil, the primary coil being connected to an output of the full-bridge circuit, and a DC/DC converter comprising a rectifier circuit. The rectifier circuit includes a plurality of diodes and is connected to the secondary coil to rectify a voltage outputted from the secondary coil. A snubber circuit includes a first snubber diode connected to an intermediate point of the secondary coil, a second snubber diode connected in series with the first snubber diode, the second snubber diode being connected to one end of an output capacitor, and a snubber capacitor connected between a node between the first and second snubber diodes and a positive side output of the rectifier circuit.Type: GrantFiled: December 11, 2013Date of Patent: January 19, 2016Assignee: HYUNDAI MOTOR COMPANYInventors: Woo Young Lee, Byeong Seob Song, Dae Woo Lee, Jin Young Yang, Jong Pill Kim
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Patent number: 9177711Abstract: A heat dissipation structure of transformer includes a bobbin formed with a hollow shape and wound with a primary coil and a secondary coil. A core surrounds an inside and an outside of the bobbin by combining a pair of upper cores with a pair of lower cores. A heat dissipating plate is disposed between the pair of upper cores and the pair of lower cores. According to an exemplary embodiment of the present disclosure, heat generated inside of the core can be effectively exhausted outside by a heat dissipating plate disposed in the center of the core.Type: GrantFiled: July 29, 2014Date of Patent: November 3, 2015Assignee: HYUNDAI MOTOR COMPANYInventors: Woo Young Lee, Jin Young Yang, Byeong Seob Song, Dae Woo Lee, Inyong Yeo
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Publication number: 20150162817Abstract: 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: ApplicationFiled: April 2, 2014Publication date: June 11, 2015Applicant: HYUNDAI MOTOR COMPANYInventors: Woo-Young Lee, Jin-Young Yang, Byeong-Seob Song, Dae-Woo Lee, In-Yong Yeo