Patents by Inventor Junbo ZENG
Junbo ZENG 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: 11374431Abstract: A system for inductive power transfer that may selectively transmit power in a plurality of modes based on characteristics of a power receiver and determine which transmitter coils to drive based on received signal strength information. The inductive power transfer transmitter may detect characteristics of the power receiver in order to control the mode of the power transfer and selectively control which transmitter coils are driven based on signal strength information received from a power receiver. The power transmitter may have slugs formed of a magnetically permeable material within common coil winding openings and the transmitter coils may consists of a plurality of parallel windings.Type: GrantFiled: January 31, 2020Date of Patent: June 28, 2022Assignee: Apple Inc.Inventors: Aaron Rex Keith, Arunim Kumar, Junbo Zeng, Lewis Freeth Harpham, Paul David Marson, Sander Vocke, Ya-Ting Wang
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Publication number: 20200169121Abstract: A system for inductive power transfer that may selectively transmit power in a plurality of modes based on characteristics of a power receiver and determine which transmitter coils to drive based on received signal strength information. The inductive power transfer transmitter may detect characteristics of the power receiver in order to control the mode of the power transfer and selectively control which transmitter coils are driven based on signal strength information received from a power receiver. The power transmitter may have slugs formed of a magnetically permeable material within common coil winding openings and the transmitter coils may consists of a plurality of parallel windings.Type: ApplicationFiled: January 31, 2020Publication date: May 28, 2020Inventors: Aaron Rex KEITH, Arunim KUMAR, Junbo ZENG, Lewis Freeth HARPHAM, Paul David MARSON, Sander VOCKE, Ya-Ting WANG
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Patent number: 10601251Abstract: A system for inductive power transfer that may selectively transmit power in a plurality of modes based on characteristics of a power receiver and determine which transmitter coils to drive based on received signal strength information. The inductive power transfer transmitter may detect characteristics of the power receiver in order to control the mode of the power transfer and selectively control which transmitter coils are driven based on signal strength information received from a power receiver. The power transmitter may have slugs formed of a magnetically permeable material within common coil winding openings and the transmitter coils may consists of a plurality of parallel windings.Type: GrantFiled: August 12, 2015Date of Patent: March 24, 2020Assignee: Apple Inc.Inventors: Aaron Rex Keith, Arunim Kumar, Junbo Zeng, Lewis Freeth Harpham, Paul David Marson, Sander Vocke, Ya-Ting Wang
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Publication number: 20190245383Abstract: A system for inductive power transfer that may selectively transmit power in a plurality of modes based on characteristics of a power receiver and determine which transmitter coils to drive based on received signal strength information. The inductive power transfer transmitter may detect characteristics of the power receiver in order to control the mode of the power transfer and selectively control which transmitter coils are driven based on signal strength information received from a power receiver. The power transmitter may have slugs formed of a magnetically permeable material within common coil winding openings and the transmitter coils may consists of a plurality of parallel windings.Type: ApplicationFiled: August 12, 2015Publication date: August 8, 2019Applicant: PowerbyProxi LimitedInventors: Aaron Rex KEITH, Arunim KUMAR, Junbo ZENG, Lewis Freeth HARPHAM, Paul David MARSON, Sander VOCKE, Ya-Ting WANG
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Patent number: 10020687Abstract: An inductive power transfer device including: a resonant circuit, having a power transfer coil and a power transfer capacitor; a coupling coil, magnetically-coupled to the power transfer coil; a variable impedance; and a controller configured to determine the impedance value of the variable impedance based on predetermined criteria including: substantially regulating power provided to a load; tuning the resonant circuit resonant frequency substantially to a predetermined frequency; adjusting a frequency of a magnetic field associated with the power transfer coil; and/or adjusting an impedance reflected by the power transfer coil to a corresponding coupled power transfer coil.Type: GrantFiled: January 22, 2015Date of Patent: July 10, 2018Assignee: Apple Inc.Inventors: Eugenio Jr. Sia Lecias, Junbo Zeng, Saining Ren, Daniel James Robertson, Michael Nasa, Ron Rafer Floresca, Arunim Kumar, Ali Abdolkhani
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Publication number: 20170237296Abstract: A system for inductive power transfer that may selectively transmit power in a plurality of modes based on characteristics of a power receiver and determine which transmitter coils to drive based on received signal strength information. The inductive power transfer transmitter may detect characteristics of the power receiver in order to control the mode of the power transfer and selectively control which transmitter coils are driven based on signal strength information received from a power receiver. The power transmitter may have slugs formed of a magnetically permeable material within common coil winding openings and the transmitter coils may consists of a plurality of parallel windings.Type: ApplicationFiled: August 12, 2015Publication date: August 17, 2017Applicant: PowerbyProxi LimitedInventors: Aaron Rex KEITH, Arunim KUMAR, Junbo ZENG, Lewis Freeth HARPHAM, Paul David MARSON, Sander VOCKE, Ya-Ting WANG
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Publication number: 20170005525Abstract: An inductive power transfer device including: a resonant circuit, having a power transfer coil and a power transfer capacitor; a coupling coil, magnetically-coupled to the power transfer coil; a variable impedance; and a controller configured to determine the impedance value of the variable impedance based on predetermined criteria including: substantially regulating power provided to a load; tuning the resonant circuit resonant frequency substantially to a predetermined frequency; adjusting a frequency of a magnetic field associated with the power transfer coil; and/or adjusting an impedance reflected by the power transfer coil to a corresponding coupled power transfer coil.Type: ApplicationFiled: January 22, 2015Publication date: January 5, 2017Inventors: Eugenio Jr. Sia LECIAS, Junbo ZENG, Saining REN, Daniel James ROBERTSON, Michael NASA, Ron Rafer FLORESCA, Arunim KUMAR, Ali ABDOLKHANI
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Publication number: 20160308393Abstract: A contactless power system comprising a power transmitter having a transmitting coil and a power receiver having a receiving coil, the power receiver being configured to receive power transmitted by the power transmitter via contactless electromagnetic coupling of the respective coils and deliver the received power to a load, wherein the receiving coil of the power receiver is part of a resonant circuit having a resonant frequency, the resonant circuit comprising a detuning element to detune the frequency of the resonant circuit from the resonant frequency in accordance with power requirements of the load.Type: ApplicationFiled: November 7, 2014Publication date: October 20, 2016Applicant: PowerbyProxi LimitedInventors: Arunim KUMAR, Nigel GRAY, Eugenio Jr. Sia LECIAS, Junbo ZENG, Ya-Ting WANG