Base current supply circuit for multiple current sources

Details Base current supply circuit for multiple current sources Base current supply circuit for multiple current sources

1995-07-03

1997-01-07

Hecker, Stuart N.

Electricity: power supply or regulation systems

Self-regulating

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

323312, G05F 316

Patent

active

055920764

ABSTRACT:
A compensation circuit (26, 27, 28, 29) supplies base currents to a plurality of current sources (22, 25) attached to a regulator (50), thereby reducing the load on the regulator and improving overall circuit performance. The compensation circuit measures a single base current, multiplies it by the number of current sources to be supplied, and then provides the multiplied current to a base bus (40) coupled to the bases of the plurality of current sources. The compensation circuit has a very high output impedance with essentially no variation with supply voltage.

REFERENCES:
patent: 5512815 (1996-04-01), Schrader

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