Patents by Inventor Joseph DeNicholas

Joseph DeNicholas 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).

  • OPEN LOOP INDUCTOR CURRENT CONTROL SYSTEM AND METHOD
    Publication number: 20040027097
    Abstract: An open loop current control system for regulating the flow of electrical current in an inductor that utilizes two methods of monitoring the current flow in the inductor. The open loop control system maintains the level of current in the inductor between two boundary levels by switching a boost transistor between an on and an off position based upon the level of current in the inductor. The control system measures the level of current in the inductor when a boost transistor is turned on. When the boost transistor is turned off, the control system determines the time period that is required for the current in the inductor to decay from the upper boundary level to the lower boundary level based upon the measured voltage difference across the inductor.
    Type: Application
    Filed: August 9, 2002
    Publication date: February 12, 2004
    Applicant: Motorola, Inc.
    Inventors: Joseph DeNicholas, Randall C. Gray
  • Open loop inductor current control system and method
    Patent number: 6690144
    Abstract: An open loop current control system for regulating the flow of electrical current in an inductor that utilizes two methods of monitoring the current flow in the inductor. The open loop control system maintains the level of current in the inductor between two boundary levels by switching a boost transistor between an on and an off position based upon the level of current in the inductor. The control system measures the level of current in the inductor when a boost transistor is turned on. When the boost transistor is turned off, the control system determines the time period that is required for the current in the inductor to decay from the upper boundary level to the lower boundary level based upon the measured voltage difference across the inductor.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: February 10, 2004
    Assignee: Motorola, Inc.
    Inventors: Joseph DeNicholas, Randall C Gray