Reference voltage producing circuit

Details Reference voltage producing circuit Reference voltage producing circuit

1983-10-04

1985-03-19

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

307297, 330257, G05F 320

Patent

active

045062080

ABSTRACT:
A reference voltage producing circuit includes a voltage signal producing circuit, a differential amplifier and an emitter follower circuit. The voltage signal producing circuit includes a first series circuit for producing a first voltage signal, a second series circuit for producing a second voltage signal and a constant current source for controlling the first and second series circuits. The differential amplifier operates so as to make the levels of the first and second voltage signals equal to each other, and controls the transistor forming the emitter follower circuit. The emitter of the transistor forming the emitter follower circuit produces a reference voltage.

REFERENCES:
patent: 3617859 (1971-11-01), Dobkin et al.
patent: 4071813 (1978-01-01), Dobkin
patent: 4263519 (1981-04-01), Schadz, Jr.
patent: 4317054 (1982-02-01), Caruso et al.
patent: 4319180 (1982-03-01), Nagano
patent: 4447784 (1984-05-01), Dobkin
Gray et al., "Analysis and Design of Analog Integrated Circuits," pp. 254-261.

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