Patents Assigned to Signetics Company
  • Multi-stage amplifier with capacitive nesting and multi-path forward feeding for frequency compensation
    Patent number: 5155447
    Abstract: A multi-stage amplifier utilizes capacitive nesting of three or more amplifier stages in combination with multiple feed-forward paths to achieve frequency compensation. Two stages (A.sub.M and A.sub.O) in cascade are first nested with a pole-splitting capacitor (C1) to form a stable device. A stable three-stage amplifier is then created by nesting the two-stage device and a further stage (A.sub.I) with another pole-splitting capacitor (C2) where feed-forward paths are provided from the further stage to both of the other stages.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: October 13, 1992
    Assignee: Signetics Company
    Inventors: Johan H. Huijsing, Maarten J. Fonderie