Patents by Inventor Stephane Ernoux

Stephane Ernoux 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).

  • Buck converter with III-nitride switch for substantially increased input-to-output voltage ratio
    Patent number: 9502973
    Abstract: According to one exemplary embodiment, a buck converter for converting a high voltage at an input of the buck converter to a low voltage at an output of the buck converter includes a III-nitride switch interposed between the input and the output of the buck converter and a low resistance switch interposed between the output of the buck converter and a ground. The buck converter further includes a control circuit configured to control a duty cycle of the III-nitride switch. The III-nitride switch has a sufficiently high switching speed so as to allow a ratio of the input high voltage to the output low voltage of the buck converter to be substantially greater than 10.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: November 22, 2016
    Assignee: Infineon Technologies Americas Corp.
    Inventor: Stephane Ernoux
  • Buck converter with III-nitride switch for substantially increased input-to-output voltage ratio
    Publication number: 20100259186
    Abstract: According to one exemplary embodiment, a buck converter for converting a high voltage at an input of the buck converter to a low voltage at an output of the buck converter includes a III-nitride switch interposed between the input and the output of the buck converter and a low resistance switch interposed between the output of the buck converter and a ground. The buck converter further includes a control circuit configured to control a duty cycle of the III-nitride switch. The III-nitride switch has a sufficiently high switching speed so as to allow a ratio of the input high voltage to the output low voltage of the buck converter to be substantially greater than 10.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Applicant: INTERNATIONAL RECTIFIER CORPORATION
    Inventor: Stephane Ernoux