Patents by Inventor Hamid R. Shahani

Hamid R. Shahani 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).

  • Resonant switching power supply circuit
    Patent number: 5715155
    Abstract: The resonant switching power supply circuit comprises positive and negative DC input terminals. First and second switching elements are connected in series between the DC input terminals. Each switching element has a control input for receiving a control signal controlling a duty cycle of the switching element. A first capacitor is connected between the DC input terminals. Second and third capacitors are connected in series between the DC input terminals. A first pair of reverse biased rectifying elements in series is connected between the DC input terminals. Each rectifying element of the first pair is connected in parallel with a respective one of the switch elements. A second pair of reverse biased rectifying elements in series is connected between the DC input terminals. Each rectifying element of the second pair is connected in parallel with a respective one of the second and third capacitors.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: February 3, 1998
    Assignee: Norax Canada Inc.
    Inventors: Hamid R. Shahani, Majid Shahani