Patents by Inventor Steven Cong
Steven Cong 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: 11380480Abstract: An induction coil is described for wireless charging of a vehicle battery. The induction coil includes a first electrically conductive strip, a second electrically conductive strip, and a first electrically insulative strip between the first and second electrically conductive strips. The first electrically insulative strip electrically isolates the first electrically conductive strip from the second electrically conductive strip. The first electrically conductive strip, the first electrically insulative strip, and the second electrically conductive strip are integrated into stack, where the stack is configured as multiple windings. The first and second electrically conductive strips are adapted to conduct an alternating current. Alternating current flow through the first and second electrically conductive strips and the plurality of windings generates a magnetic field for wireless inductive charging of the vehicle battery.Type: GrantFiled: July 10, 2019Date of Patent: July 5, 2022Assignee: Lear CorporationInventors: Ajmal Imran Ansari, Steven Cong
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Patent number: 11313917Abstract: An electric current sensor for detecting a leakage current from an electric vehicle charger. The current sensor includes a magnetic core having a gap formed therein, a first conductor wound around the magnetic core to form a first coil, a second conductor wound around the magnetic core to form a second coil, and a tunnel-magnetoresistance (TMR) sensor element arranged in the gap of the magnetic core. A difference between electric current flow in the first and second conductors produces a magnetic field in the gap of the magnetic core proportional to a leakage current, and the magnetic field produces a voltage in the TMR sensor element indicative of a value of the leakage current.Type: GrantFiled: May 13, 2020Date of Patent: April 26, 2022Assignee: LEAR CORPORATIONInventors: Steven Cong, David A Hein, Ajmal Imran Ansari, Anthony Armento, Arthur Hurlburt, Ryan Cleveland, Matthew Zamieski
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Publication number: 20210356531Abstract: An electric current sensor for detecting a leakage current from an electric vehicle charger. The current sensor includes a magnetic core having a gap formed therein, a first conductor wound around the magnetic core to form a first coil, a second conductor wound around the magnetic core to form a second coil, and a tunnel-magnetoresistance (TMR) sensor element arranged in the gap of the magnetic core. A difference between electric current flow in the first and second conductors produces a magnetic field in the gap of the magnetic core proportional to a leakage current, and the magnetic field produces a voltage in the TMR sensor element indicative of a value of the leakage current.Type: ApplicationFiled: May 13, 2020Publication date: November 18, 2021Applicant: Lear CorporationInventors: STEVEN CONG, DAVID A HEIN, AJMAL IMRAN ANSARI, ANTHONY ARMENTO, ARTHUR HURLBURT, RYAN CLEVELAND, MATTHEW ZAMIESKI
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Publication number: 20210335535Abstract: In at least one embodiment, a transformer assembly including a bobbin, a first winding and a second winding is provided. The bobbin defines a first chamber, a second chamber, and a gap. The first winding is positioned in the first chamber. The second winding is positioned in the second chamber. The gap separates the first chamber from the second chamber to cause the first winding and the second winding to generate a leakage inductance such that the leakage inductance and a capacitance of a capacitor that is operably coupled to the transformer assembly generate a resonant frequency to enable inductive mode charging with a vehicle pad.Type: ApplicationFiled: April 27, 2020Publication date: October 28, 2021Inventors: Steven CONG, Ajmal ANSARI, Anthony ARMENTO, Shane LUERSMAN
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Publication number: 20210012956Abstract: An induction coil is described for wireless charging of a vehicle battery. The induction coil includes a first electrically conductive strip, a second electrically conductive strip, and a first electrically insulative strip between the first and second electrically conductive strips. The first electrically insulative strip electrically isolates the first electrically conductive strip from the second electrically conductive strip. The first electrically conductive strip, the first electrically insulative strip, and the second electrically conductive strip are integrated into stack, where the stack is configured as multiple windings. The first and second electrically conductive strips are adapted to conduct an alternating current. Alternating current flow through the first and second electrically conductive strips and the plurality of windings generates a magnetic field for wireless inductive charging of the vehicle battery.Type: ApplicationFiled: July 10, 2019Publication date: January 14, 2021Inventors: Ajmal Imran ANSARI, Steven Cong
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Patent number: 10622826Abstract: A wireless charging unit for an electric vehicle is provided with a metal enclosure to shield a high-power switching noise environment enclosed within the unit. A wireless power transfer system includes the wireless charging unit on the electric vehicle side that receives power wirelessly from a charging base. In addition to a high-power switching network, the wireless charging unit may include a wireless communication system for wirelessly communicating control messages to the charging base. The metal enclosure may include a cutout region having a plastic cover underneath which an antenna may be mounted to establish wireless communication with the charging base from within the metal enclosure.Type: GrantFiled: October 25, 2017Date of Patent: April 14, 2020Assignee: LEAR CORPORATIONInventors: Steven Cong, David A. Hein, Ajmal Imran Ansari, Eric Salem
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Patent number: 10594157Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a charging error is detected before the charging base can be shut down. The system and method employs a zero-voltage switching (ZVS) scheme to shut down the wireless charger output, in response to the charging error, to protect the switching devices and enhance overall reliability.Type: GrantFiled: June 5, 2019Date of Patent: March 17, 2020Assignee: LEAR CORPORATIONInventors: Steven Cong, David A Hein, Ryan Cleveland, Eric Salem
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Patent number: 10483772Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging from both a desired power source and a stray power source. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a low-voltage battery connected to the wireless charger is lost. The wireless charger output protection system and method also shuts down the wireless charger output and dumps unwanted energy in the receive antenna (e.g., a vehicle pad) when power is transferred from a stray power source coupled to the receive antenna.Type: GrantFiled: November 2, 2017Date of Patent: November 19, 2019Assignee: LEAR CORPORATIONInventors: Steven Cong, David A. Hein, Ryan Cleveland, Eric Salem
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Publication number: 20190288546Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a charging error is detected before the charging base can be shut down. The system and method employs a zero-voltage switching (ZVS) scheme to shut down the wireless charger output, in response to the charging error, to protect the switching devices and enhance overall reliability.Type: ApplicationFiled: June 5, 2019Publication date: September 19, 2019Inventors: Steven CONG, David A HEIN, Ryan CLEVELAND, Eric SALEM
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Patent number: 10333335Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a charging error is detected before the charging base can be shut down. The system and method employs a zero-voltage switching (ZVS) scheme to shut down the wireless charger output, in response to the charging error, to protect the switching devices and enhance overall reliability.Type: GrantFiled: October 27, 2017Date of Patent: June 25, 2019Assignee: Lear CorporationInventors: Steven Cong, David A. Hein, Ryan Cleveland, Eric Salem
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Patent number: 10304621Abstract: An assembly includes a metallic housing, an electromagnetic (EM) device, and a bobbin in which the EM device is supported. The bobbin has a non-metallic, inner bobbin body, a non-metallic, outer bobbin body, and a metallic shield sandwiched between the inner and outer bobbin bodies. The EM device and the bobbin are mounted in the housing with the bobbin being between the EM device and the housing for heat from the EM device to thermally conduct through the inner and outer bobbin bodies and the shield to the housing while the shield shields noise of the EM device from the housing.Type: GrantFiled: January 24, 2017Date of Patent: May 28, 2019Assignee: Lear CorporationInventors: Ajmal Imran Ansari, David A. Hein, Steven Cong, Allen Leo Mott
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Publication number: 20190131803Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging from both a desired power source and a stray power source. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a low-voltage battery connected to the wireless charger is lost. The wireless charger output protection system and method also shuts down the wireless charger output and dumps unwanted energy in the receive antenna (e.g., a vehicle pad) when power is transferred from a stray power source coupled to the receive antenna.Type: ApplicationFiled: November 2, 2017Publication date: May 2, 2019Inventors: Steven CONG, David A. HEIN, Ryan CLEVELAND, Eric SALEM
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Publication number: 20190131816Abstract: A wireless charger output protection system and method is provided for protecting a battery in an electric vehicle during wireless charging. A wireless power transfer system includes a wireless charger on the electric vehicle side that receives power wirelessly from a charging base. The wireless charger output protection system and method shuts down the wireless charger output and dumps energy in a receive antenna (e.g., a vehicle pad) when a charging error is detected before the charging base can be shut down. The system and method employs a zero-voltage switching (ZVS) scheme to shut down the wireless charger output, in response to the charging error, to protect the switching devices and enhance overall reliability.Type: ApplicationFiled: October 27, 2017Publication date: May 2, 2019Inventors: Steven CONG, David A. HEIN, Ryan CLEVELAND, Eric SALEM
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Publication number: 20190118658Abstract: A wireless charging unit for an electric vehicle is provided with a metal enclosure to shield a high-power switching noise environment enclosed within the unit. A wireless power transfer system includes the wireless charging unit on the electric vehicle side that receives power wirelessly from a charging base. In addition to a high-power switching network, the wireless charging unit may include a wireless communication system for wirelessly communicating control messages to the charging base. The metal enclosure may include a cutout region having a plastic cover underneath which an antenna may be mounted to establish wireless communication with the charging base from within the metal enclosure.Type: ApplicationFiled: October 25, 2017Publication date: April 25, 2019Inventors: Steven Cong, David A. Hein, Ajmal Imran Ansari, Eric Salem
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Publication number: 20180211766Abstract: An assembly includes a metallic housing, an electromagnetic (EM) device, and a bobbin in which the EM device is supported. The bobbin has a non-metallic, inner bobbin body, a non-metallic, outer bobbin body, and a metallic shield sandwiched between the inner and outer bobbin bodies. The EM device and the bobbin are mounted in the housing with the bobbin being between the EM device and the housing for heat from the EM device to thermally conduct through the inner and outer bobbin bodies and the shield to the housing while the shield shields noise of the EM device from the housing.Type: ApplicationFiled: January 24, 2017Publication date: July 26, 2018Applicant: Lear CorporationInventors: Ajmal Imran Ansari, David A. Hein, Steven Cong, Allen Leo Mott
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Patent number: 9673816Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to transform a first control signal to produce an isolated second control signal, to receive a pair of floating power supply voltages at opposing ends of a totem-pole series of driver metal-oxide semiconductor field-effect transistors (MOSFETs), and to clamp an output of a driver apparatus to one of the pair of floating power supply voltages. The isolated second control signal may operate to control current flow through the driver MOSFETs. Additional apparatus, systems, and methods are described.Type: GrantFiled: November 11, 2014Date of Patent: June 6, 2017Assignee: Halliburton Energy Services, Inc.Inventors: Steven Cong, Thomas Jones
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Publication number: 20160301409Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to transform a first control signal to produce an isolated second control signal, to receive a pair of floating power supply voltages at opposing ends of a totem-pole series of driver metal-oxide semiconductor field-effect transistors (MOSFETs), and to clamp an output of a driver apparatus to one of the pair of floating power supply voltages. The isolated second control signal may operate to control current flow through the driver MOSFETs. Additional apparatus, systems, and methods are described.Type: ApplicationFiled: November 11, 2014Publication date: October 13, 2016Inventors: Steven Cong, Thomas Jones