Bi-directional current switch

Details Bi-directional current switch Bi-directional current switch

1986-02-24

1987-10-06

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307249, 307250, 307255, H03K 301, H03K 1760

Patent

active

046985212

ABSTRACT:
A bi-directional current switch is provided which serves as a DC coupler mixer driver for PSK modulators. The invention includes a first switchable current source for selectively providing one of at least two current flow rates at an output node. A second current source acts as a sink and provides a steady state current flow rate out of said node. When the first current source is switched on, the output current is reversed. The invention thereby provides bi-directional current switching in response to a logical input signal.

REFERENCES:
patent: 3649769 (1972-03-01), Pest
patent: 3798471 (1974-03-01), Williams et al.
patent: 4536662 (1985-08-01), Fujii
Analysis and Design of Analog Integrated Circuits, by P. Gray and R. Meyer (1977), pp. 239-242.

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