Partially temperature compensated low noise voltage reference

Details Partially temperature compensated low noise voltage reference Partially temperature compensated low noise voltage reference

1997-10-01

1999-08-10

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

327539, G05F 316, G05F 110, G05F 302

Patent

active

059363916

ABSTRACT:
A reference voltage source has at least one transistor having a base, emitter and collector electrode operating in an active state that has an inherent voltage drop between its base and emitter electrodes to generate a low noise core voltage which is applied to the input of an amplifier to set the amplifier operating point, and thereby the amplifier output, which is the reference voltage. The reference voltage is temperature compensated by providing the amplifier with a feedback loop, or by altering the core voltage applied to the amplifier, or by altering the gain of the amplifier. Several transistors can be connected in series and their base to emitter voltage drops added to change the core voltage value.

REFERENCES:
patent: 4313083 (1982-01-01), Gilbert et al.
patent: 5047707 (1991-09-01), Dixon et al.
patent: 5184061 (1993-02-01), Lee et al.
patent: 5394078 (1995-02-01), Brokaw
patent: 5434533 (1995-07-01), Furutani
patent: 5563504 (1996-10-01), Gilbert et al.

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