Patents by Inventor Rodger E. Payne

Rodger E. Payne 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).

  • Inverter current load detection and disable circuit
    Patent number: 5420779
    Abstract: A circuit and method for protecting a voltage inverter circuit is disclosed. The circuit comprises a first comparison circuit capable of comparing a first reference voltage to a voltage indicative of the load current of the voltage inverter. When the comparison circuit signals that the first reference voltage is greater than the load voltage, a disable circuit coupled to the first comparison circuit disables the voltage inverter. In the preferred embodiment, the inverter provides power to a cold cathode fluorescent lamp which, if damaged, can harm the inverter.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: May 30, 1995
    Assignee: Dell USA, L.P.
    Inventor: Rodger E. Payne