Patents by Inventor Ian R. Bacheller

Ian R. Bacheller 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).

  • LED lamp failure detection circuit and method
    Patent number: 11156670
    Abstract: An LED fault detection circuit is provided for detecting a fault in at least one LED. The circuit may include a test voltage generator for applying at least one test voltage level to the at least one LED, wherein the at least one test voltage level is less than a nominal operating voltage range; a current measuring circuit for measuring at least one current draw by the at least one LED at the at least one test voltage level; and a processing circuit coupled to the test voltage generator for causing the at least one test voltage level to be applied to the at least one LED, the processing circuit coupled to the current measuring circuit for detecting a fault in the at least one LED when the at least one measured current draw has a profile that does not correspond to an expected current draw profile.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: October 26, 2021
    Assignee: Innotec, Corp.
    Inventors: Thomas J. Veenstra, Ian R. Bacheller
  • LED LAMP FAILURE DETECTION CIRCUIT AND METHOD
    Publication number: 20190132917
    Abstract: An LED fault detection circuit is provided for detecting a fault in at least one LED. The circuit may include a test voltage generator for applying at least one test voltage level to the at least one LED, wherein the at least one test voltage level is less than a nominal operating voltage range; a current measuring circuit for measuring at least one current draw by the at least one LED at the at least one test voltage level; and a processing circuit coupled to the test voltage generator for causing the at least one test voltage level to be applied to the at least one LED, the processing circuit coupled to the current measuring circuit for detecting a fault in the at least one LED when the at least one measured current draw has a profile that does not correspond to an expected current draw profile.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 2, 2019
    Inventors: Thomas J. Veenstra, Ian R. Bacheller