Patents by Inventor Saad Mekhilef

Saad Mekhilef 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).

  • Method of operating a multi-level switched capacitor boost inverter
    Patent number: 11368107
    Abstract: A multi-level switched capacitor boost inverter includes a series connection of a two-switched capacitor circuit, a source module and at least one one-switched capacitor circuit. Level-shifted pulse width modulation is used to apply gate pulses to the switches. The multi-level switched capacitor boost inverter uses only three capacitors and a single DC voltage source to generate thirteen voltage levels at load terminals with a voltage gain of three. The capacitors of the two-switched capacitor circuit are self-balancing. Additional one-switched capacitor circuits can be added in series with the inverter. Each additional one-switched capacitor circuit increases the number of levels and increases the gain by one.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: June 21, 2022
    Assignee: King Abdulaziz University
    Inventors: Hussain Bassi, Muhyaddin Rawa, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah
  • METHOD OF OPERATING A MULTI-LEVEL SWITCHED CAPACITOR BOOST INVERTER
    Publication number: 20220069736
    Abstract: A multi-level switched capacitor boost inverter includes a series connection of a two-switched capacitor circuit, a source module and at least one one-switched capacitor circuit. Level-shifted pulse width modulation is used to apply gate pulses to the switches. The multi-level switched capacitor boost inverter uses only three capacitors and a single DC voltage source to generate thirteen voltage levels at load terminals with a voltage gain of three. The capacitors of the two-switched capacitor circuit are self-balancing. Additional one-switched capacitor circuits can be added in series with the inverter. Each additional one-switched capacitor circuit increases the number of levels and increases the gain by one.
    Type: Application
    Filed: February 5, 2021
    Publication date: March 3, 2022
    Applicant: King Abdulaziz University
    Inventors: Hussain BASSI, Muhyaddin RAWA, Saad MEKHILEF, Marif Daula SIDDIQUE, Noraisyah Binti Mohamed SHAH
  • Method for generating output voltages with a boost inverter
    Patent number: 11196354
    Abstract: An 11 level boost active neutral point clamped (BANPC) inverter using four capacitors and a single DC voltage source to generate eleven voltage levels at load terminals with a voltage gain of 2.5. A minimum of switching elements are used. Gate pulses for the switches are generated using nearest level control pulse width modulation (NLC-PWM). The capacitors of the 11 level boost active neutral point clamped inverter are self-balancing.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: December 7, 2021
    Assignee: King Abdulaziz University
    Inventors: Muhyaddin Rawa, Hussain Bassi, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah
  • 11-level boost active neutral point clamped inverter topology with higher voltage gain
    Patent number: 11159095
    Abstract: An 11 level boost active neutral point clamped (BANPC) inverter using four capacitors and a single DC voltage source to generate eleven voltage levels at load terminals with a voltage gain of 2.5. A minimum of switching elements are used. Gate pulses for the switches are generated using nearest level control pulse width modulation (NLC-PWM). The capacitors of the 11 level boost active neutral point clamped inverter are self-balancing.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: October 26, 2021
    Assignee: King Abdulaziz University
    Inventors: Muhyaddin Rawa, Hussain Bassi, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah
  • Active neutral point clamped inverter with a plurality of boost levels
    Patent number: 11121643
    Abstract: An 11 level boost active neutral point clamped (BANPC) inverter using four capacitors and a single DC voltage source to generate eleven voltage levels at load terminals with a voltage gain of 2.5. A minimum of switching elements are used. Gate pulses for the switches are generated using nearest level control pulse width modulation (NLC-PWM). The capacitors of the 11 level boost active neutral point clamped inverter are self-balancing.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: September 14, 2021
    Assignee: King Abdulaziz University
    Inventors: Muhyaddin Rawa, Hussain Bassi, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah
  • Load generation using a multi-level switched capacitor boost inverter
    Patent number: 11114948
    Abstract: A multi-level switched capacitor boost inverter includes a series connection of a two-switched capacitor circuit, a source module and at least one one-switched capacitor circuit. Level-shifted pulse width modulation is used to apply gate pulses to the switches. The multi-level switched capacitor boost inverter uses only three capacitors and a single DC voltage source to generate thirteen voltage levels at load terminals with a voltage gain of three. The capacitors of the two-switched capacitor circuit are self-balancing. Additional one-switched capacitor circuits can be added in series with the inverter. Each additional one-switched capacitor circuit increases the number of levels and increases the gain by one.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: September 7, 2021
    Assignee: King Abdulaziz University
    Inventors: Hussain Bassi, Muhyaddin Rawa, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah
  • Switched capacitor based boost inverter topology with a higher number of levels and higher voltage gain
    Patent number: 10965221
    Abstract: A multi-level switched capacitor boost inverter includes a series connection of a two-switched capacitor circuit, a source module and at least one one-switched capacitor circuit. Level-shifted pulse width modulation is used to apply gate pulses to the switches. The multi-level switched capacitor boost inverter uses only three capacitors and a single DC voltage source to generate thirteen voltage levels at load terminals with a voltage gain of three. The capacitors of the two-switched capacitor circuit are self-balancing. Additional one-switched capacitor circuits can be added in series with the inverter. Each additional one-switched capacitor circuit increases the number of levels and increases the gain by one.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: March 30, 2021
    Assignee: King Abdulaziz University
    Inventors: Hussain Bassi, Muhyaddin Rawa, Saad Mekhilef, Marif Daula Siddique, Noraisyah Binti Mohamed Shah