Patents by Inventor Adam M. Bumgarner

Adam M. Bumgarner 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).

  • Apparatuses and wireless power transmitters having multiple transmit coils and related method
    Patent number: 9837864
    Abstract: A wireless power transmitter may include a bridge inverter and a plurality of parallel paths operably coupled to the bridge inverter. Each path includes a resonance tank including a transmit coil coupled with at least one resonance capacitor, a first switch serially coupled with the resonance tank and switching node A of the bridge inverter, a first clamping element in parallel with the first switch, a second switch serially coupled with the resonance tank and switching node B of the bridge inverter, and a second clamping element in parallel with the second switch. A method includes generating a wireless power signal through a used coil in a first parallel path, and clamping a parasitic voltage generated in at least one unused coil in at least one additional parallel path through a clamp element across a switch in the at least one parallel path for the at least one unused coil.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: December 5, 2017
    Assignee: Integrated Device Technology, Inc.
    Inventors: Gustavo J. Mehas, Nicholaus W. Smith, Adam M. Bumgarner
  • APPARATUSES AND WIRELESS POWER TRANSMITTERS HAVING MULTIPLE TRANSMIT COILS AND RELATED METHOD
    Publication number: 20160285278
    Abstract: A wireless power transmitter may include a bridge inverter and a plurality of parallel paths operably coupled to the bridge inverter. Each path includes a resonance tank including a transmit coil coupled with at least one resonance capacitor, a first switch serially coupled with the resonance tank and switching node A of the bridge inverter, a first clamping element in parallel with the first switch, a second switch serially coupled with the resonance tank and switching node B of the bridge inverter, and a second clamping element in parallel with the second switch. A method includes generating a wireless power signal through a used coil in a first parallel path, and clamping a parasitic voltage generated in at least one unused coil in at least one additional parallel path through a clamp element across a switch in the at least one parallel path for the at least one unused coil.
    Type: Application
    Filed: March 26, 2015
    Publication date: September 29, 2016
    Inventors: Gustavo J. Mehas, Nicholaus W. Smith, Adam M. Bumgarner