Output current control circuit for reducing ground bounce noise

Details Output current control circuit for reducing ground bounce noise Output current control circuit for reducing ground bounce noise

1987-12-08

1988-11-01

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307443, 307289, 307572, 307573, 307542, 307546, 307300, H03K 17687, H03K 500, H03K 1716

Patent

active

047822520

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).

REFERENCES:
patent: 3992650 (1976-11-01), Iwasa et al.
patent: 4318011 (1982-03-01), Zeis

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