Band gap reference voltage source

Details Band gap reference voltage source Band gap reference voltage source

1994-04-14

1996-10-29

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323907, G05F 320

Patent

active

055700080

ABSTRACT:
For compensating the Early effect a band gap reference voltage source includes current mirror circuits (T.sub.4, Q.sub.3 and T.sub.1, Q.sub.1 as well as T.sub.2, Q.sub.2) to ensure that the currents necessary for achieving the temperature-compensated output voltage are generated. Using the current mirror circuits makes the reference voltage source independent of changes in the supply voltage (U.sub.cc) and enables it in particular to be employed at supply voltages as of low as 3 V.

REFERENCES:
patent: 4396883 (1983-08-01), Holloway et al.
patent: 4435678 (1984-03-01), Joseph et al.
patent: 4677368 (1987-06-01), Bynum
patent: 4797577 (1989-01-01), Hing

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