Patents by Inventor David J. Perreault

David J. Perreault 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: 20140132354
    Abstract: Circuits and methods for achieving high linearity, high efficiency power amplifiers, including digital predistortion (DPD) and pulse cancellation in switched-state RF power amplifier systems are described.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 15, 2014
    Applicant: ETA DEVICES, INC.
    Inventors: Mark A. Briffa, Joel L. Dawson, John E. DeRoo, Krenar Komoni, David J. Perreault, Oguzhan Uyar
  • Publication number: 20140125412
    Abstract: A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
    Type: Application
    Filed: March 13, 2013
    Publication date: May 8, 2014
    Inventors: Joel L. Dawson, David J. Perreault, SungWon Chung, Philip Godoy, Everest Huang
  • Publication number: 20140118072
    Abstract: Circuits and methods for performing multilevel power amplification using multiple different supply voltages or states are disclosed. In some embodiments, power amplifiers are provided that switch between three or more supply voltages or states.
    Type: Application
    Filed: July 31, 2013
    Publication date: May 1, 2014
    Applicant: Eta Devices, Inc.
    Inventors: Mark A. Briffa, Joel L. Dawson, John E. DeRoo, Krenar Komoni, David J. Perreault, Oguzhan Uyar
  • Publication number: 20140118065
    Abstract: Circuits and methods for achieving high linearity, high efficiency power amplifiers, including digital predistortion (DPD) and pulse cancellation in switched-state RF power amplifier systems are described.
    Type: Application
    Filed: October 28, 2013
    Publication date: May 1, 2014
    Applicant: Eta Devices, Inc.
    Inventors: Mark A. Briffa, Joel L. Dawson, John E. DeRoo, Krenar Komoni, David J. Perreault, Oguzhan Uyar
  • Publication number: 20140120854
    Abstract: A radio frequency (RF) transmitter includes one or more power amplifiers and a controller that is configured to adjust amplitudes and phases of RF input signals of the one or more power amplifiers and supply voltages applied to the one or more power amplifiers. In embodiments where multiple power amplifiers are used, a combiner may be provided to combine outputs of the power amplifiers. In at least one implementation, amplitude adjustment of the RF input signals of the one or more power amplifiers may be used to provide transmit power control and/or power backoff for the RF transmitter.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: ETA Devices, Inc.
    Inventors: Mark A. Briffa, Joel L. Dawson, John E. DeRoo, Krenar Komoni, David J. Perreault, Oguzhan Uyar
  • Publication number: 20140118063
    Abstract: A radio frequency (RF) power amplifier system or transmitter includes one or more power amplifiers and a controller that is configured to adjust amplitudes and phases of RF input signals of the one or more power amplifiers and supply voltages applied to the one or more power amplifiers. In embodiments where multiple power amplifiers are used, a combiner may be provided to combine outputs of the power amplifiers. In at least one implementation, amplitude adjustment of the RF input signals of the one or more power amplifiers may be used to provide transmit power control and/or power backoff.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: ETA Devices, Inc.
    Inventors: Mark A. Briffa, Joel L. Dawson, John E. DeRoo, Krenar Komoni, David J. Perreault, Oguzhan Uyar
  • Patent number: 8699248
    Abstract: A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: April 15, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: David M. Giuliano, David J. Perreault, Robert C. N. Pilawa-Podgurski
  • Patent number: 8670254
    Abstract: Circuit topologies and control methods for a power converter and are described.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: March 11, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: David J. Perreault, Brandon J. Pierquet
  • Patent number: 8659353
    Abstract: A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: February 25, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Joel L. Dawson, David J. Perreault, SungWon Chung, Philip Godoy, Everest Huang
  • Patent number: 8643347
    Abstract: A converter circuit and related techniques for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: February 4, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: David M. Giuliano, David J. Perreault, Robert C. N. Pilawa-Podgurski
  • Publication number: 20130343107
    Abstract: A resistance compression network uses transmission line sections having asymmetric lengths to compress the resistance range of multiple loads. In some embodiments, the characteristic impedance of the transmission line sections is related to the geometric mean of the load resistance range. The resistance compression network may be used within, for example, an energy recovery system or in any other application where a reduction in the resistance range of multiple loads is desired.
    Type: Application
    Filed: March 13, 2013
    Publication date: December 26, 2013
    Applicant: Eta Devices, Inc.
    Inventor: David J. Perreault
  • Publication number: 20130343106
    Abstract: An energy recovery system is provided that can be used in place of a resistive termination. The energy recovery system can simulate the behavior and performance of a resistive termination, while recovering at least some of the energy that would otherwise have been dissipated within the termination. In one embodiment, the energy recovery system includes a rectification system having a plurality of tuned rectifier circuits and an RF input network to provide input power distribution to the plurality of tuned rectifier circuits and input impedance shaping to shape the collective input impedance of the plurality of tuned rectifier circuits as seen at the RF input port of the RF input network.
    Type: Application
    Filed: January 31, 2013
    Publication date: December 26, 2013
    Applicant: ETA DEVICES, INC.
    Inventors: David J. Perreault, Joel L. Dawson
  • Publication number: 20130314948
    Abstract: Circuit topologies and control methods for a multi-phase grid interface are described. In at least one embodiment, a power conversion circuit is provided that includes an inverter stage, a transformer stage, and a cycloconverter stage. The cycloconverter stage may include one cycloconverter circuit for each of multiple phases associated with a multi-phase grid. In some embodiments, each cycloconverter circuit may include first and second half-bridge circuits coupled back-to-back.
    Type: Application
    Filed: March 12, 2013
    Publication date: November 28, 2013
    Inventors: David J. Perreault, Brandon J. Pierquet
  • Publication number: 20130241625
    Abstract: A power combining and outphasing system and related techniques for simultaneously providing both wide-bandwidth linear amplification and high average efficiency is described. Providing linear amplification encompasses the ability to dynamically control an RF output power level over a wide range while still operating over a wide frequency bandwidth. The system and techniques described herein also operate to maintain high efficiency across a wide range of output power levels, such that a high average efficiency can be achieved for highly modulated output waveforms.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 19, 2013
    Inventors: David J. Perreault, Alexander Sergeev Jurkov, Taylor W. Barton
  • Patent number: 8451053
    Abstract: A power combining and outphasing system and related techniques for simultaneously providing both wide-bandwidth linear amplification and high average efficiency is described. Providing linear amplification encompasses the ability to dynamically control an RF output power level over a wide range while still operating over a wide frequency bandwidth. The system and techniques described herein also operate to maintain high efficiency across a wide range of output power levels, such that a high average efficiency can be achieved for highly modulated output waveforms.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: May 28, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: David J. Perreault, Alexander S. Jurkov
  • Publication number: 20120326684
    Abstract: A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 27, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: David J. Perreault, Robert C.N. Pilawa-Podgurski, David M. Giuliano
  • Publication number: 20120313602
    Abstract: A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices.
    Type: Application
    Filed: June 4, 2012
    Publication date: December 13, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: David J. Perreault, Robert C.N. Pilawa-Podgurski, David M. Giuliano
  • Publication number: 20120176195
    Abstract: A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
    Type: Application
    Filed: March 19, 2012
    Publication date: July 12, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Joel L. Dawson, David J. Perreault, SungWon Chung, Philip Godoy, Everest Huang
  • Patent number: 8212541
    Abstract: A converter circuit and related technique for providing high power density power conversion includes a reconfigurable switched capacitor transformation stage coupled to a magnetic converter (or regulation) stage. The circuits and techniques achieve high performance over a wide input voltage range or a wide output voltage range. The converter can be used, for example, to power logic devices in portable battery operated devices.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: July 3, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: David J. Perreault, Robert C. N. Pilawa-Podgurski, David M. Giuliano
  • Patent number: 8164384
    Abstract: A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: April 24, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Joel L. Dawson, David J. Perreault, SungWon Chung, Philip Godoy, Everest Huang