Voltage supply regulated in proportion to sum of positive- and n

Details Voltage supply regulated in proportion to sum of positive- and n Voltage supply regulated in proportion to sum of positive- and n

1976-10-05

1978-06-13

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323 1, 323 22T, 330257, 330297, G05F 156, G05F 160

Patent

active

040951642

ABSTRACT:
A regulated voltage supply comprising a degenerative feedback loop in which an amplified error signal provides either series-regulation or shunt-regulation of the output voltage. A negative-temperature-coefficient a forward-biased semiconductor junction is compared against a portion of the output voltage to develop the error signal. The comparison between these voltages is made in an unbalanced different-input amplifier configuration that provides a zero-valued error signal so long as there is a positive-temperature-coefficient potential difference between the voltages being compared. The output voltage is proportional to the sum of the negative- and positive-temperature-coefficient voltages and can be made temperature-independent by properly proportioning the summed voltages.

REFERENCES:
patent: 3617859 (1971-11-01), Dobkin et al.
patent: 3757137 (1973-09-01), Ahmed
patent: 3851241 (1974-11-01), Wheatley
patent: 3887863 (1975-06-01), Brokaw
patent: 3887879 (1975-06-01), Radovsky
patent: 3939399 (1976-02-01), Funatsu et al.
patent: 3940708 (1976-02-01), Sumi et al.
patent: 3946325 (1976-03-01), Leidich
patent: 3979688 (1976-09-01), Maidique
patent: 4021722 (1977-05-01), Crowle
Kuijk, "A Precision Reference Voltage Source," IEEE Journal of Solid State Circuits, vol. SC-8, No. 3, Jun. 1973, pp. 222-224.
Ahmed, "Zero-Offset Potential Follower Circuits," RCA Technical Notes, TN No. 938, Sep. 17, 1973, pp. 1-4.

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