Patents Represented by Attorney Vincent Tortolano

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  • Output current control circuit for reducing ground bounce noise
    Patent number: 4782252
    Abstract: An output current control circuit (10) for use with CMOS output buffers so as to reduce significantly ground bounce noise, includes a variable resistance device (28) for limiting the maximum short circuit current in a pull-down transistor (N1) so as to reduce significantly ground bounce noise. A feedback resistor (R.sub.s) is used to sense a reference voltage developed at a system ground reference line (30) for controlling the resistance of the variable resistance device (28).
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 1, 1988
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Roy J. Levy, Steven B. Sidman