Constant voltage circuit

Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...

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323315, G05F 326

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active

052784916

ABSTRACT:
This invention discloses a constant voltage circuit including a bandgap circuit connected between a ground voltage and a source voltage, a transistor, the collector of which is connected to the collector of a negative feedback transistor for supplying a voltage of a base-emitter path to the other terminal of a resistor having one terminal connected to an output terminal of the bandgap circuit, and the base of which is connected to a voltage source free from variations in source voltage, and a resistor connected between the emitter of the transistor and the source voltage.

REFERENCES:
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patent: 4277739 (1981-07-01), Priel
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patent: 4751463 (1988-06-01), Higgs et al.
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ISSCC Digest of Technical Papers, pp. 158-159; New Developments in IC Voltage Regulators; R. J. Widlar; Feb. 1970.
IEEE Journal of Solid-State Circuits, vol. SC-19, No. 4; pp. 474-479; A333 ps/800 MHz 7K-Gate Bipolar Macrocell Array Employing 4 Level Metallization; M. Suzuki et al.; Aug. 1984.
IEEE Journal of Solid-State Circuits, vol. SC-20, No. 5; pp. 1025-1031; Design and Application of a 2500-Gate Bipolar Macrocell Array; M. Suzuki et al.; Oct. 1985.

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