Integrated logic circuit having a control circuit for generating

Details Integrated logic circuit having a control circuit for generating Integrated logic circuit having a control circuit for generating

1987-02-02

1988-11-08

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307270, 307448, 307571, 307597, H03K 1756, H03K 301, H03K 17681, H03K 513

Patent

active

047836016

ABSTRACT:
An integrated logic circuit includes an output circuit for generating an output current which increases linearly in time. In integrated logic circuits the problem presents itself that the rapid variation of the (dis) charging of a data output causes a reverse voltage pulse VL across the inductance formed by the connection wires. The reverse voltage is limited by causing the charge or discharge current (for the load capacities present) to increase linearly to a maximum permissible value. This is done by driving the output field effect transistor with a control voltage VC which varies in time in the form of a square root.

REFERENCES:
Evans, "Designing with FET's", 1981, pp. 79-81.
Stoops, "Circuit to Control the Time Rate of Change of Current at the Output Node of an Off-Chip Driver", IBM Technical Disclosure Bulletin, vol. 27, No. 1A, Jun. 1984.

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