Constant-current circuit

Details Constant-current circuit Constant-current circuit

1979-10-10

1981-05-26

Beha, Jr., William H.

Electricity: power supply or regulation systems

Self-regulating

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

G05F 308

Patent

active

042700817

ABSTRACT:
A constant-current circuit is especially well-suited for construction as a semiconductor integrated circuit, and it is stable over a wide range of variations in power potential. The constant-current circuit produces first to third biasing potentials. A first current source produces a first current responsive to the first bias potential. A second current source produces a second current responsive to the second bias potential, and a third current source produces a third current responsive to the third bias potential. A constant current output is obtained by subtracting the second current from the sum of the first and third currents.

REFERENCES:
patent: 3943380 (1976-03-01), Morgan et al.
patent: 4016435 (1977-04-01), Voorman

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