Patents Assigned to Microsemi, Inc.
  • Method and apparatus to switch operating modes in a PFM converter
    Patent number: 7102339
    Abstract: A dual-mode pulse frequency modulation boost converter operates in a hysteretic mode during light load currents to regulate an output voltage using a substantially fixed peak switching current and operates in a continuous mode during heavy load currents to regulate the output voltage using a variable peak switching current. The boost converter senses load power to automatically switch between the hysteretic mode and the continuous mode.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: September 5, 2006
    Assignee: Microsemi, Inc.
    Inventor: Bruce R. Ferguson