Patents by Inventor Keyue Smedley

Keyue Smedley 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).

  • Publication number: 20230006548
    Abstract: Various examples are provided related to switching methods for regulating resonant switched-capacitor converters (RSCCs). In one example, a method includes operating switches of the RSCC in a repeated asymmetric sequence of switching states per switching cycle. The repeated asymmetric sequence can include at least three switching states selected from five defined switching states including an idle state. For example, repeated asymmetric sequence can consist of four switching states selected from the five defined switching states. In another example, a method includes operating switches of the RSCC in a repeated sequence of switching states per switching cycle. The repeated sequence can include six switching states selected from five defined switching states with at least one of the five defined switching states occurs twice in the six switching states. For example, the repeated sequence can consist of each of the five defined switching states with the idle state occurring twice.
    Type: Application
    Filed: December 2, 2020
    Publication date: January 5, 2023
    Inventors: Wenhao Xie, Keyue Smedley
  • Patent number: 10199935
    Abstract: Various examples are provided for hybrid boosting converters (HBCs). In one example, a HBC includes an inductive switching core and a bipolar voltage multiplier (BVM) coupled to the inductive switching core. In another example, a HBC micro-inverter includes an inductive switching core coupled to an input voltage; a BVM comprising a positive branch and a negative branch coupled to the inductive switching core; and a switched bridge coupled across the positive and negative branches of the BVM. In another example, a 3D HBC includes a common axis comprising a series of capacitors; and a plurality of parallel wings coupled to the common axis. The parallel wings form a BVM when coupled to the common axis and include an inductive switching core that is coupled to an input voltage. The common axis can include a single input voltage or multiple input voltages can be coupled through the wings.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: February 5, 2019
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Bin Wu, Keyue Smedley
  • Patent number: 10074995
    Abstract: Aspects of a battery management converter system are described. In one embodiment, a battery management converter system includes an arrangement of a plurality of battery converter cells, where each battery converter cell includes one or more battery cells and a switching power converter. The system further includes a battery converter cell controller for each of the plurality of battery converter cells, and a battery management converter controller that receives battery status information from each battery converter cell controller and provides control references to distribute charging or discharging power among the plurality of battery converter cells.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: September 11, 2018
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, ONE-CYCLE CONTROL. INC.
    Inventors: Gregory Smedley, Keyue Smedley, Roozbeh Naderi
  • Patent number: 9929667
    Abstract: Provided herein is a fusion energy extraction circuit (FEEC) device having a grid-tied bidirectional converter and a resonant converter. The resonant converter can include an inverse cyclotron converter with two or more or quadruple plates and a plurality of circuit switches. The bidirectional converter can include a three-phase grid-tied converter. The FEEC device is capable of decelerating plasma particle beams, thereby extracting the energy from the deceleration, converting the extracted energy to electric energy, and sending the electric energy to a power grid.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: March 27, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF THE CALIFORNIA
    Inventors: Keyue Smedley, Frank J. Wessel, Mingying Gu, In Wha Jeong
  • Publication number: 20170310241
    Abstract: Various examples are provided for hybrid boosting converters (HBCs). In one example, a HBC includes an inductive switching core and a bipolar voltage multiplier (BVM) coupled to the inductive switching core. In another example, a HBC micro-inverter includes an inductive switching core coupled to an input voltage; a BVM comprising a positive branch and a negative branch coupled to the inductive switching core; and a switched bridge coupled across the positive and negative branches of the BVM. In another example, a 3D HBC includes a common axis comprising a series of capacitors; and a plurality of parallel wings coupled to the common axis. The parallel wings form a BVM when coupled to the common axis and include an inductive switching core that is coupled to an input voltage. The common axis can include a single input voltage or multiple input voltages can be coupled through the wings.
    Type: Application
    Filed: September 11, 2015
    Publication date: October 26, 2017
    Inventors: BIN WU, KEYUE SMEDLEY
  • Publication number: 20170025967
    Abstract: Provided herein is a fusion energy extraction circuit (FEEC) device having a grid-tied bidirectional converter and a resonant converter. The resonant converter can include an inverse cyclotron converter with two or more or quadruple plates and a plurality of circuit switches. The bidirectional converter can include a three-phase grid-tied converter. The FEEC device is capable of decelerating plasma particle beams, thereby extracting the energy from the deceleration, converting the extracted energy to electric energy, and sending the electric energy to a power grid.
    Type: Application
    Filed: April 13, 2016
    Publication date: January 26, 2017
    Inventors: Keyue Smedley, Frank J. Wessel, Mingying Gu, In Wha Jeong
  • Patent number: 9343189
    Abstract: Provided herein is a fusion energy extraction circuit (FEEC) device having a grid-tied bidirectional converter and a resonant converter. The resonant converter can include an inverse cyclotron converter with two or more or quadruple plates and a plurality of circuit switches. The bidirectional converter can include a three-phase grid-tied converter. The FEEC device is capable of decelerating plasma particle beams, thereby extracting the energy from the deceleration, converting the extracted energy to electric energy, and sending the electric energy to a power grid.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: May 17, 2016
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Keyue Smedley, Frank J. Wessel, Mingying Gu, In Wha Jeong
  • Publication number: 20150002099
    Abstract: Aspects of a battery management converter system are described. In one embodiment, a battery management converter system includes an arrangement of a plurality of battery converter cells, where each battery converter cell includes one or more battery cells and a switching power converter. The system further includes a battery converter cell controller for each of the plurality of battery converter cells, and a battery management converter controller that receives battery status information from each battery converter cell controller and provides control references to distribute charging or discharging power among the plurality of battery converter cells.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Applicants: The Regents of the University of California Corporation, A California Corporation, One-Cycle Control, Inc.
    Inventors: Gregory Smedley, Keyue Smedley, Roozbeh Naderi
  • Patent number: 8879290
    Abstract: Provided herein are unified control methods and implementations for controlling single and three-phase power converters. In an exemplary embodiment, a unified controller is provided that can be used to control a three-phase three-wire Voltage Source Inverter (VSI), a three-phase four-wire VSI, a three-phase grid-connected power converter for current shaping, and a single-phase full bridge VSI.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: November 4, 2014
    Assignee: The Regents of the University of California
    Inventors: Lihua Li, Keyue Smedley, Taotao Jin
  • Patent number: 8279647
    Abstract: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection unit, an input selection unit, a reference signal source unit and a control core. The control core can be implemented using one-cycle control, average current mode control, current mode control or sliding mode control and the like. The controller can be configured to control different types of power converters by adjusting the reference signal source. Also provided are multiple modulation methods for controlling the power converter.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: October 2, 2012
    Assignee: The Regents of the University of California
    Inventors: Taotao Jin, Keyue Smedley
  • Publication number: 20120236607
    Abstract: Provided herein are unified control methods and implementations for controlling single and three-phase power converters. In an exemplary embodiment, a unified controller is provided that can be used to control a three-phase three-wire Voltage Source Inverter (VSI), a three-phase four-wire VSI, a three-phase grid-connected power converter for current shaping, and a single-phase full bridge VSI.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 20, 2012
    Inventors: Lihua Li, Keyue Smedley, Taotao Jin
  • Patent number: 8259477
    Abstract: The various embodiments and example provided herein are generally directed to novel multiphase resonant converters. In an embodiment, a multiphase resonant converter comprises N unit resonant converters having inputs and outputs connected in parallel, respectively. Each unit converter comprises an inverter, a LLC series resonant tank, and a rectifier. In a preferred embodiment, the inverters of the N unit converters are driven by N drive signals phase-shifted 2?/N degrees apart. During operation, the current of the multiphase converter is shared among the unit converters, resulting in a smaller current in each unit converter. The smaller current in each unit converter reduces conduction losses, thereby increasing the efficiency of the multiphase converter. In addition, the smaller current in each unit converter reduces the amount of stress placed on individual components of the converter allowing for the use of lower tolerance components.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: September 4, 2012
    Assignee: The Regents of the University of California
    Inventors: Taotao Jin, Keyue Smedley
  • Patent number: 8194428
    Abstract: Provided herein is are unified control methods and implementations for controlling single and three-phase power converters. In an exemplary embodiment, a unified controller is provided that can be used to control a three-phase three-wire Voltage Source Inverter (VSI), a three-phase four-wire VSI, a three-phase grid-connected power converter for current shaping, and a single-phase full bridge VSI.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: June 5, 2012
    Assignee: UCI-The Regents of the University of California
    Inventors: Lihua Li, Keyue Smedley, Taotao Jin
  • Publication number: 20110188272
    Abstract: Provided herein is a fusion energy extraction circuit (FEEC) device having a grid-tied bidirectional converter and a resonant converter. The resonant converter can include an inverse cyclotron converter with two or more or quadruple plates and a plurality of circuit switches. The bidirectional converter can include a three-phase grid-tied converter. The FEEC device is capable of decelerating plasma particle beams, thereby extracting the energy from the deceleration, converting the extracted energy to electric energy, and sending the electric energy to a power grid.
    Type: Application
    Filed: June 29, 2009
    Publication date: August 4, 2011
    Inventors: Keyue Smedley, Frank Wessel, Mingying Gu, In Wha Jeong
  • Publication number: 20110032735
    Abstract: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection unit, an input selection unit, a reference signal source unit and a control core. The control core can be implemented using one-cycle control, average current mode control, current mode control or sliding mode control and the like. The controller can be configured to control different types of power converters by adjusting the reference signal source. Also provided are multiple modulation methods for controlling the power converter.
    Type: Application
    Filed: September 14, 2010
    Publication date: February 10, 2011
    Inventors: Taotao Jin, Keyue Smedley
  • Patent number: 7796411
    Abstract: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection unit, an input selection unit, a reference signal source unit and a control core. The control core can be implemented using one-cycle control, average current mode control, current mode control or sliding mode control and the like. The controller can be configured to control different types of power converters by adjusting the reference signal source. Also provided are multiple modulation methods for controlling the power converter.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: September 14, 2010
    Assignee: The Regents of the University of California
    Inventors: Taotao Jin, Keyue Smedley
  • Patent number: 7663268
    Abstract: Multilevel high power converters, referred to as hexagram converters, which preferably include a combination of six three-phase converter modules, are provided herein. The three-phase converter modules are interconnected and can be configured as any three-phase converter for any given application. One or more inductors can be used in the interconnections between the six modules to suppress potential circulating currents. Numerous applications exist in which the described converters can be implemented.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: February 16, 2010
    Assignee: The Regents of the University of Cailfornia
    Inventors: Jun Wen, Keyue Smedley
  • Publication number: 20100019742
    Abstract: Provided herein is are unified control methods and implementations for controlling single and three-phase power converters. In an exemplary embodiment, a unified controller is provided that can be used to control a three-phase three-wire Voltage Source Inverter (VSI), a three-phase four-wire VSI, a three-phase grid-connected power converter for current shaping, and a single-phase full bridge VSI.
    Type: Application
    Filed: October 4, 2007
    Publication date: January 28, 2010
    Inventors: Lihua Li, Keyue Smedley, Taotao Jin
  • Publication number: 20090303764
    Abstract: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection unit, an input selection unit, a reference signal source unit and a control core. The control core can be implemented using one-cycle control, average current mode control, current mode control or sliding mode control and the like. The controller can be configured to control different types of power converters by adjusting the reference signal source. Also provided are multiple modulation methods for controlling the power converter.
    Type: Application
    Filed: December 30, 2008
    Publication date: December 10, 2009
    Inventors: Taotao Jin, Keyue Smedley
  • Patent number: 7471529
    Abstract: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection unit, an input selection unit, a reference signal source unit and a control core. The control core can be implemented using one-cycle control, average current mode control, current mode control or sliding mode control and the like. The controller can be configured to control different types of power converters by adjusting the reference signal source. Also provided are multiple modulation methods for controlling the power converter.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: December 30, 2008
    Assignee: The Regents of the University of California
    Inventors: Taotao Jin, Keyue Smedley