Patents by Inventor Edwin R. Isaack

Edwin R. Isaack 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).

  • Power converter overload protection circuit
    Patent number: 5621622
    Abstract: Overload protection for an AC/DC converter is formed by a high frequency AC power signal provided to a step-down/isolator circuit which converts the power signal to a low voltage signal. An output filter stage then converts the low voltage AC signal to a DC output for use in DC devices. Upon the occurrence of a short circuit or a current overload, the step-down/isolator circuit core becomes saturated, ceasing operation of the step-down/isolator until the short or the connected device drawing the current overload is removed.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: April 15, 1997
    Assignee: Operating Technical Electronics, Inc.
    Inventor: Edwin R. Isaack