Cascode current units with inverter circuitry control

Details Cascode current units with inverter circuitry control Cascode current units with inverter circuitry control

1995-03-02

1998-09-22

Powell, Mark R.

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

341136, 341144, H03M 166

Patent

active

058121218

ABSTRACT:
An output current unit comprises a cascode circuit having a first transistor connected between a voltage supply line and complementary outputs. Second and third transistors are controlled by inverter circuitry having parallel conducting paths between an output node and a ground line, the parallel conducting paths having different current carrying capacity with control circuitry to switch the stronger of the current carrying paths.

REFERENCES:
patent: 4418359 (1983-11-01), Stapleton
patent: 4642690 (1987-02-01), Hinn
patent: 4999586 (1991-03-01), Meyer et al.
patent: 5343221 (1994-08-01), Arakawa et al.
patent: 5369402 (1994-11-01), Kwon
patent: 5442355 (1995-08-01), Cummins
patent: 5442379 (1995-08-01), Bruce et al.
patent: 5489902 (1996-02-01), Shyu et al.
patent: 5548288 (1996-08-01), Lueng
patent: 5555000 (1996-09-01), Sarrasin et al.

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