Current mirror with error correction

Details Current mirror with error correction Current mirror with error correction

1993-09-01

1994-06-14

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

330296, H03F 304

Patent

active

053213718

ABSTRACT:
A current mirror circuit is modified to supply bias current to the input transistor that varies in accordance with variations in the base-emitter voltages of the input and output transistors, and in accordance with the variations in collector voltage of the output transistor. The bias current variations are controlled by a pair of complementary conductivity type transistors that are closely coupled in manner similar to the coupling of the input and output transistors with associated bias supplies and unity gain amplifier connected to alter bias conditions in accordance with variations in the base-emitter voltage and the collector voltage of the output transistor.

REFERENCES:
patent: 4766396 (1988-08-01), Taya et al.

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