Patents by Inventor David C. Tournatory

David C. Tournatory 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).

  • Control of bleed current in drivers for dimmable lighting devices
    Patent number: 8581498
    Abstract: Methods and apparati for controlling bleed current (IBLEED) in a driver circuit (20) for a lighting device (23). A method embodiment of the present invention comprises the steps of coupling a dimmer (21) to an input of the driver circuit (20), and forcing the bleed current (IBLEED) to be inversely proportional to the time-averaged voltage (VLEDP) at said lighting device (23). The dimmer (21) consumes power even when the lighting device (23) is not emitting light.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: November 12, 2013
    Assignee: Jade Sky Technologies, Inc.
    Inventors: Eugene L. Cheung, David J. Chen, David C. Tournatory