Patents by Inventor Jonathan P. Kraft

Jonathan P. Kraft 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).

  • Method of forming PWM controller
    Patent number: 8222883
    Abstract: In one embodiment, a PWM controller is configured to inhibit a drive signal responsively to a bulk input voltage remaining at a low value for a time interval.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: July 17, 2012
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Jonathan P. Kraft
  • Fault detection and handling for current sources
    Patent number: 8189313
    Abstract: A current source driving an LED is monitored for a fault condition such as an open circuit or a short circuit. The current source may be disabled and/or a common power source may be disabled in response to the type of fault condition. A test current may be applied to the current source to determine the type of fault.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: May 29, 2012
    Assignee: Analog Devices, Inc.
    Inventor: Jonathan P Kraft
  • METHOD OF FORMING PWM CONTROLLER
    Publication number: 20120011712
    Abstract: In one embodiment, a PWM controller is configured to inhibit a drive signal responsively to a bulk input voltage remaining at a low value for a time interval.
    Type: Application
    Filed: September 28, 2011
    Publication date: January 19, 2012
    Inventor: Jonathan P. Kraft
  • PWM controller having drive control with input voltage sensing and method therefor
    Patent number: 8059432
    Abstract: In one embodiment, a PWM controller includes a circuit operably coupled to inhibit a drive signal responsively to a bulk input voltage remaining at a low value for a time interval and to re-enable the drive signal subsequently to the time interval responsively to the bulk input voltage increasing to greater than the first value subsequently to the time interval. In another embodiment, a method of forming a PWM controller includes configuring the PWM controller to use a clock signal to form a drive signal and to sense a bulk input voltage decreasing to no greater than a first value and to disable the drive signal without disabling the clock signal responsively to the bulk input voltage remaining no greater than the first value for a time interval.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: November 15, 2011
    Assignee: Semiconductor Components Industries, LLC.
    Inventor: Jonathan P. Kraft
  • Method of forming a PWM controller and structure therefor
    Patent number: 7961485
    Abstract: In one embodiment, a PWM controller is configured to inhibit forming a drive signal responsively to an overload sense signal having a value that is no greater than a first value for a first time interval and to form a first duration of the first time interval responsively to the overload sense signal.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: June 14, 2011
    Assignee: Semiconductor Components Industries, LLC
    Inventor: Jonathan P. Kraft
  • METHOD OF FORMING A PWM CONTROLLER AND STRUCTURE THEREFOR
    Publication number: 20090153207
    Abstract: In one embodiment, a PWM controller is configured to inhibit forming a drive signal responsively to an overload sense signal having a value that is no greater than a first value for a first time interval and to form a first duration of the first time interval responsively to the overload sense signal.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventor: Jonathan P. Kraft
  • PWM CONTROLLER AND METHOD THEREFOR
    Publication number: 20090153123
    Abstract: In one embodiment, a PWM controller is configured to inhibit a drive signal responsively to a bulk input voltage remaining at a low value for a time interval.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventor: Jonathan P. Kraft