Patents by Inventor Md Muntasir Ul Alam

Md Muntasir Ul Alam 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).

  • Hybrid resonant bridgeless AC-DC power factor correction converter
    Patent number: 9490694
    Abstract: A power converter (e.g., AC-DC converter) includes an input inductor coupled between a first AC voltage source input node and a central node, a first switch coupled between the central node and a first rail node, a second switch coupled between the central node and a second rail node, and a resonant output circuit. The first switch has a body diode that passes current from the first rail node to the central node. The second switch has a body diode that passes current from the central node to the second rail node. A first input device controls current flow between the first rail node and the second AC voltage source input node, and a second input device controls current flow between the second rail node and the second AC voltage source input. The output circuit includes at least one capacitor and at least one inductor which form a resonant network, hence are denominated as resonant capacitor(s) and resonant inductor(s).
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: November 8, 2016
    Assignee: DELTA-Q TECHNOLOGIES CORP.
    Inventor: Md Muntasir Ul Alam
  • HYBRID RESONANT BRIDGELESS AC-DC POWER FACTOR CORRECTION CONVERTER
    Publication number: 20150263605
    Abstract: A power converter (e.g., AC-DC converter) includes an input inductor coupled between a first AC voltage source input node and a central node, a first switch coupled between the central node and a first rail node, a second switch coupled between the central node and a second rail node, and a resonant output circuit. The first switch has a body diode that passes current from the first rail node to the central node. The second switch has a body diode that passes current from the central node to the second rail node. A first input device controls current flow between the first rail node and the second AC voltage source input node, and a second input device controls current flow between the second rail node and the second AC voltage source input. The output circuit includes at least one capacitor and at least one inductor which form a resonant network, hence are denominated as resonant capacitor(s) and resonant inductor(s).
    Type: Application
    Filed: March 4, 2015
    Publication date: September 17, 2015
    Inventor: Md Muntasir Ul Alam