Current gain stage with low voltage drop

Details Current gain stage with low voltage drop Current gain stage with low voltage drop

1986-12-04

1988-03-22

Wan, Gene

Amplifiers

With semiconductor amplifying device

Including current mirror amplifier

323315, H03F 304, G05F 316

Patent

active

047331968

ABSTRACT:
A current gain stage with low voltage drop usable in place of a Darlington's current gain stage is described. This stage maintains the precision characteristics of the output current value, though presenting a lower voltage drop. The stage is formed by connecting the collector of the input transistor (driver) to a current mirror, the output current of which is added to the output current of the gain stage for maintaining the high precision.

REFERENCES:
patent: 4420725 (1983-12-01), Sueyoshi et al.

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