Patents by Inventor Ali SHAHABI

Ali SHAHABI 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: 20250093391
    Abstract: An apparatus for sensing current in a back-to-back MOSFET configuration is provided. The apparatus may include a first MOSFET having a gate terminal, a drain terminal, and a source terminal, a second MOSFET having a source terminal coupled to the source terminal of the first MOSFET, a gate terminal, and a drain terminal, a gate driver circuit including at least one gate drive output terminal to output a gate drive signal to the gate terminals of the first and second MOSFETs, and a shunt resistor coupled between the source terminals of the first and second MOSFETs. The gate driver circuit may include a return terminal coupled to the source terminal of the first MOSFET, and a return current from the gate terminal of the second MOSFET flows through the shunt resistor to the return terminal of the gate driver circuit.
    Type: Application
    Filed: September 13, 2024
    Publication date: March 20, 2025
    Applicant: Microchip Technology Incorporated
    Inventors: Ehab Tarmoom, Steven Chenetz, Xuning Zhang, Ali Shahabi, Robin L. Weber
  • Publication number: 20250076346
    Abstract: The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules. The disclosed apparatus provides near-complete elimination of high frequency spectral content, while leaving the desired frequency range (1-100 kHz) of the module unaffected. In addition to the suppression of this undesirable high-frequency content, the disclosed apparatus also provides for accurate, galvanically-isolated, high-bandwidth, real-time current measurement, which is essential for some types of power electronics converters. Prior to the disclosure of this apparatus, these two features (ringing suppression and current measurement) have required physically-separate circuits for implementation, which increases the size, weight, and cost of the final implementation. The apparatus disclosed here provides both of these features in simple circuit topology that can be implemented compactly inside the geometry of a multi-chip power module.
    Type: Application
    Filed: November 18, 2024
    Publication date: March 6, 2025
    Inventors: Andrew N. Lemmon, Ali Shahabi
  • Patent number: 12188966
    Abstract: The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules, which are used in the design and implementation of power electronics converters. This apparatus is especially useful for modules containing recently-commercialized, high-performance wide band-gap semiconductors such as Silicon Carbide (SiC), which commonly emit undesirable high-frequency ringing and oscillation in the “Near-RF” spectral band between 1-30 MHz. The disclosed apparatus provides near-complete elimination of this high frequency spectral content, while leaving the desired frequency range (1-100 kHz) of the module unaffected. In addition to the suppression of this undesirable high-frequency content, the disclosed apparatus also provides for accurate, galvanically-isolated, high-bandwidth, real-time current measurement, which is essential for some types of power electronics converters.
    Type: Grant
    Filed: January 12, 2024
    Date of Patent: January 7, 2025
    Assignee: The Board of Trustees of The University of Alabama
    Inventors: Andrew N. Lemmon, Ali Shahabi
  • Publication number: 20240151747
    Abstract: The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules, which are used in the design and implementation of power electronics converters. This apparatus is especially useful for modules containing recently-commercialized, high-performance wide band-gap semiconductors such as Silicon Carbide (SiC), which commonly emit undesirable high-frequency ringing and oscillation in the “Near-RF” spectral band between 1-30 MHz. The disclosed apparatus provides near-complete elimination of this high frequency spectral content, while leaving the desired frequency range (1-100 kHz) of the module unaffected. In addition to the suppression of this undesirable high-frequency content, the disclosed apparatus also provides for accurate, galvanically-isolated, high-bandwidth, real-time current measurement, which is essential for some types of power electronics converters.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Andrew N. Lemmon, Ali Shahabi
  • Patent number: 11913974
    Abstract: The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules, which are used in the design and implementation of power electronics converters. This apparatus is especially useful for modules containing recently commercialized, high-performance wide band-gap semiconductors such as Silicon Carbide (SiC), which commonly emit undesirable high-frequency ringing and oscillation in the “Near-RF” spectral band between 1-30 MHz. The disclosed apparatus provides near-complete elimination of this high frequency spectral content, while leaving the desired frequency range (1-100 kHz) of the module unaffected. In addition to the suppression of this undesirable high-frequency content, the disclosed apparatus also provides for accurate, galvanically-isolated, high-bandwidth, real-time current measurement, which is essential for some types of power electronics converters.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: February 27, 2024
    Assignee: The Board of Trustees of The University of Alabama
    Inventors: Andrew N. Lemmon, Ali Shahabi
  • Publication number: 20210057986
    Abstract: The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules, which are used in the design and implementation of power electronics converters. This apparatus is especially useful for modules containing recently commercialized, high-performance wide band-gap semiconductors such as Silicon Carbide (SiC), which commonly emit undesirable high-frequency ringing and oscillation in the “Near-RF” spectral band between 1-30 MHz. The disclosed apparatus provides near-complete elimination of this high frequency spectral content, while leaving the desired frequency range (1-100 kHz) of the module unaffected. In addition to the suppression of this undesirable high-frequency content, the disclosed apparatus also provides for accurate, galvanically-isolated, high-bandwidth, real-time current measurement, which is essential for some types of power electronics converters.
    Type: Application
    Filed: April 3, 2019
    Publication date: February 25, 2021
    Inventors: Andrew N. LEMMON, Ali SHAHABI