Current mirror circuit

Details Current mirror circuit Current mirror circuit

1996-09-12

1999-11-16

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

H03F 304

Patent

active

059865075

ABSTRACT:
A current mirror circuit comprises a first current-to-voltage converter for inputting an input current, a second current-to-voltage converter, a first transistor, the collector or drain of which outputs an output current, and the emitter or source of which is connected to the second current-to-voltage converter, and a control unit for controlling a control electrode of the first transistor. The control unit refers a voltage current-to-voltage converted by the first and second current-to-voltage converters to control the first transistor so that currents flow from the control unit to the first and second current-to-voltage converters at a predetermined ratio.

REFERENCES:
patent: 5087891 (1992-02-01), Cytera
patent: 5378998 (1995-01-01), Davies
"The Active-Input Regulated-Cascode Current Mirror", Teresa Serrano and Bernabe Linares-Barranco, IEEE Transactions on Circuits and Systems-I: Fundamental Theory and Applications, vol. 41, No. 6 Jun. 1994, pp. 464-467.
"Dynamic Range of Low-Voltage Cascode Current Mirrors", Erik Bruun and Peter Shah, 1995 IEEE, pp. 1328-1331.

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