Patents by Inventor Paul David Aloisi

Paul David Aloisi 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).

  • Holdover circuit for a power converter using a bi-directional switching regulator
    Patent number: 7646186
    Abstract: A holdover circuit is configured with a holdover capacitor, preferably an aluminum electrolytic capacitor, to provide uninterruptible operation for an electrical load operable over a limited range of input voltage during brief power interruptions. The holdover circuit includes a switching regulator configured with two active switches that are controlled with complementary duty cycles to charge and discharge the holdover capacitor at a voltage higher than the voltage of the load. The controller for the switching regulator may be configured to regulate the voltage of the holdover capacitor at a voltage proportional to the load voltage or at a constant voltage. The controller for the switching regulator is configured to operate in different modes during normal powered operation and during holdover.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: January 12, 2010
    Assignee: Texas Instruments Incorporated
    Inventors: Edward Jung, Paul David Aloisi, James G. Bird