Current driver circuit with transverse current regulation

Details Current driver circuit with transverse current regulation Current driver circuit with transverse current regulation

1996-09-12

1997-12-30

Sterrett, Jeffrey L.

Electricity: power supply or regulation systems

Self-regulating

Using a three or more terminal semiconductive device as the...

323316, G05F 316

Patent

active

057034770

ABSTRACT:
A current driver circuit with transverse current regulation includes a CMOS output driver stage. Each output transistor is assigned one gate-coupled and source-coupled current polling transistor. Control signals are derived from currents flowing through the current polling transistors, and a first branch of a differential amplifier is triggered by these signals. A second branch thereof is controlled by a reference signal. Input branches of current mirrors are each connected into an output circuit of the differential amplifier, and output branches of the current mirrors include gate-coupled and source-coupled transistors for the connection of an input signal. Center pickups of the output branches of these current mirrors each serve to trigger one of the output transistors. The current driver circuit has a high output voltage rise and output transistors with little surface area, and could be operated with a low supply voltage.

REFERENCES:
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Patents Abstracts of Japan, P-1279, Nov. 22, 1991, vol. 15, No. 462 & JP-A-3-196318 (NEC Corp.) Aug. 27, 1991.
An article entitled: "A Highly Linear CMOS Buffer Amplifier", by J. A. Fisher and R. Koch, n IEEE Journal of Solid State Circuits, vol. SC-22, No. 3, Jun. 1987, pp. 330-334.

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