Current scaling circuits

Details Current scaling circuits Current scaling circuits

1976-01-02

1977-06-28

Goldberg, Gerald

Electricity: power supply or regulation systems

Remote sensing

307297, 323 9, 323 69, 330 30D, G01K 700, G05F 308

Patent

active

040328392

ABSTRACT:
Each circuit responds to an input current with an output current in fixed ratio to its input current despite variations in the absolute temperature T at which its input and output transistors are operated. Input current from a two-terminal current regulator of a particular type is employed to develop across a resistance a voltage V which varies as a function of T. The input current passing through the resistance serves as the emitter-to-collector current of the input transistor, which is self-biased. The voltage V is applied between the bases of the input and output transistors of the current amplifier for producing the desired output current at the collector of the output transistor.

REFERENCES:
patent: 3617859 (1971-11-01), Dobkin et al.
patent: 3629691 (1971-12-01), Wheatley, Jr.
patent: 3831040 (1974-08-01), Nanba et al.
patent: 3914683 (1975-10-01), Van De Plassche

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