Reference voltage generating circuit

Details Reference voltage generating circuit Reference voltage generating circuit

1992-03-27

1993-07-20

Stephan, Steven L.

Electricity: power supply or regulation systems

Self-regulating

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

G05F 320

Patent

active

052297110

ABSTRACT:
A reference voltage generating circuit is provided which includes a first voltage producing circuit having a first transistor, a first resistor, and a second resistor for producing a first voltage based on the base-emitter voltage of the first transistor and the resistance values of the first and second resistors; a second voltage producing circuit having a second transistor, a third resistor, and a fourth resistor for producing a second voltage, which is different from the first voltage, based on the base-emitter voltage of the second transistor and the resistance values of the third and fourth resistors; and an amplifying circuit to which the first voltage is input from the first voltage producing circuit and the second voltage is input from the second voltage producing circuit and which amplifies the difference between the two voltages to generate a reference voltage.

REFERENCES:
patent: 3887863 (1975-06-01), Brokaw
patent: 4087758 (1978-05-01), Hareyama
patent: 4249122 (1981-02-01), Widlar
patent: 4317054 (1982-02-01), Caruso et al.
patent: 4327320 (1982-04-01), Oguey
patent: 5119015 (1992-06-01), Watanabe

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