Patents by Inventor Barry A. Harvey

Barry A. Harvey 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).

  • Compensation method in a class-G amplifier output stage
    Patent number: 6538514
    Abstract: An improved class-G amplifier (FIG. 2) is provided by adding a first capacitor (82) between the input of current mirror (18) and node p, and by adding a second capacitor (84) between the input of current mirror (20) and node m. The added capacitors (82) and (84) can be sized to stabilize frequency responses when high power supplies are enabled. The added capacitors (82) and (84) further function to reduce transient currents during switching through the crossover points between first upper and lower power supplies (Vsp1, Vsph) and between second upper and lower power supplies (Vsm1, Vsmh).
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: March 25, 2003
    Assignee: Elantec Semiconductor, Inc.
    Inventor: Barry A. Harvey
  • Compensation method in a class-G amplifier output stage
    Publication number: 20020175760
    Abstract: An improved class-G amplifier (FIG. 2) is provided by adding a first capacitor (82) between the input of current mirror (18) and node p, and by adding a second capacitor (84) between the input of current mirror (20) and node m. The added capacitors (82) and (84) can be sized to stabilize frequency responses when high power supplies are enabled. The added capacitors (82) and (84) further function to reduce transient currents during switching through the crossover points between first upper and lower power supplies (Vspl, Vsph) and between second upper and lower power supplies (Vsml, Vsmh).
    Type: Application
    Filed: May 22, 2002
    Publication date: November 28, 2002
    Inventor: Barry A. Harvey