Curvature corrected bandgap reference circuit and method

Details Curvature corrected bandgap reference circuit and method Curvature corrected bandgap reference circuit and method

2007-08-07

2007-08-07

Sterrett, Jeffrey (Department: 2838)

Electricity: power supply or regulation systems

Self-regulating

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

C323S316000, C323S907000

Reexamination Certificate

active

11064668

ABSTRACT:
A curvature corrected bandgap reference circuit comprises a first bipolar transistor having a base-emitter voltage Vbe1and operated such that it has a constant operating current, and a second bipolar transistor having a base-emitter voltage Vbe2and operated such that it has an operating current consisting of an approximately temperature proportional component and a non-linear component. The circuit is arranged such that the ratio of the current densities in the two transistors varies with temperature, such that the difference voltage (ΔVbe=Vbe1−Vbe2) includes a residual component which approximately compensates bandgap curvature error.

REFERENCES:
patent: 4588941 (1986-05-01), Kerth et al.
patent: 5394078 (1995-02-01), Brokaw
patent: 5666046 (1997-09-01), Mietus
patent: 5796244 (1998-08-01), Chen et al.
patent: 5910726 (1999-06-01), Koifman et al.
patent: 6002293 (1999-12-01), Brokaw
patent: 6218822 (2001-04-01), MacQuigg
patent: 6225856 (2001-05-01), Toth
patent: 6255807 (2001-07-01), Doorenbos et al.
patent: 7112948 (2006-09-01), Daly et al.
patent: 7122997 (2006-10-01), Werking
patent: 7164259 (2007-01-01), Megaw et al.
patent: 7166994 (2007-01-01), Lee et al.
patent: 2004/0124822 (2004-07-01), Marinca
patent: 2005/0168207 (2005-08-01), Daly et al.
patent: 2007/0052473 (2007-03-01), McLeod
A CMOS Bandgap Reference Circuit with Sub-1-V Operation; Banba et al., IEEE Journal of Solid-State Circuits, vol. 34, No. 5, May 1999, pp. 2-6.
Curvature-Compensated BiCMOS Bandgap with I-V Supply Voltage, Malcovati, et al., IEEE Journal of Solid-State Circuits, vol. 36, No. 7, Jul. 2001, pp. 7-12.

Affiliated with

Also associated with

Rating

Curvature corrected bandgap reference circuit and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Curvature corrected bandgap reference circuit and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Curvature corrected bandgap reference circuit and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3895875