Patents by Inventor Sagar Kumar Dhar

Sagar Kumar Dhar 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).

  • Floating immittance emulator
    Patent number: 9837987
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 5, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Muhammad Taher Abuelma'atti, Sagar Kumar Dhar
  • Floating immittance emulator
    Patent number: 9837985
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 5, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Muhammad Taher Abuelma'atti, Sagar Kumar Dhar
  • Floating immittance emulator
    Patent number: 9837986
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 5, 2017
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Muhammad Taher Abuelma'atti, Sagar Kumar Dhar
  • FLOATING IMMITTANCE EMULATOR
    Publication number: 20170149414
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 25, 2017
    Inventors: Muhammad Taher Abuelma'atti, Sagar Kumar Dhar
  • FLOATING IMMITTANCE EMULATOR
    Publication number: 20170149413
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 25, 2017
    Inventors: Muhammad Taher ABUELMA'ATTI, Sagar Kumar DHAR
  • FLOATING IMMITTANCE EMULATOR
    Publication number: 20170149415
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 25, 2017
    Inventors: MUHAMMAD TAHER ABUELMA'ATTI, SAGAR KUMAR DHAR
  • Floating immittance emulator
    Patent number: 9548721
    Abstract: The floating immittance emulator is presented in four embodiments in which four new topologies for emulating floating immittance functions are detailed. Each circuit uses three current-feedback operational-amplifiers (CFOAs) and three passive elements. The present topologies can emulate lossless and lossy floating inductances; capacitance, resistance, and inductance multipliers; and frequency-dependent positive and negative resistances.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 17, 2017
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Muhammad Taher Abuelma'atti, Sagar Kumar Dhar
  • Current-mode folding amplifier
    Patent number: 9461593
    Abstract: The current-mode folding amplifier is a current-mode saw-tooth folding amplifier having a minimal number of current mirrors in the signal path from input to output. This minimizes the delays imposed by current mirrors on the speed of the amplifier. The amplifier has a full scale delay of 5.9 ns. The operation of the amplifier is verified in simulation using LFoundry 150 nm process in Cadence Tools.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 4, 2016
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS DHAHRAN
    Inventors: Mohanad Ahmed Mohammed Elhassan Ahmed, Sagar Kumar Dhar, Munir Kulaib Al-Absi, Muhammad Taher Abuelma'atti