Driver circuit for generating output at two different levels

Details Driver circuit for generating output at two different levels Driver circuit for generating output at two different levels

1984-08-31

1987-03-03

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307254, 307350, 307264, H03K 301, H03K 3159

Patent

active

046477934

ABSTRACT:
The present invention in the preferred embodiment comprises a plurality of current mirror circuit stages connected together for amplifying a first input signal and generating an output signal. A shunt path circuit is connected to the first stage of the plurality of current mirror stages and when activated by a second input signal shunts a portion of the first input signal to ground, thus reducing the current flow into the plurality of current mirror stages. During normal operation, when the shunt path circuit is inactivated, the last stage of the plurality of current mirror stages functions as a switch and passes all of the amplified first input signal. However, during the low power consumption mode, when the shunt path circuit is activated, the last stage of the plurality of current mirror circuit stages functions as a current mirror circuit and passes current at a considerably reduced level.

REFERENCES:
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patent: 4344003 (1982-08-01), Harmon et al.
patent: 4373139 (1983-02-01), Beesley
patent: 4469959 (1984-09-01), Luke et al.
patent: 4471492 (1984-09-01), Mann et al.

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