Miscellaneous active electrical nonlinear devices – circuits – and – External effect – Temperature
Reexamination Certificate
2011-04-05
2011-04-05
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
External effect
Temperature
C327S539000, C323S315000, C323S314000
Reexamination Certificate
active
07920015
ABSTRACT:
In a traditional, fully-isolated bandgap reference circuits, it was difficult to detect currents that are proportional to absolute temperature (PTAT). Here, a PTAT reference in a fully isolated NPN-based bandgap references are disclosed. These circuits in particular are able to make detections using various current without the need for stand-along operational amplifiers.
REFERENCES:
patent: 6815941 (2004-11-01), Butler
patent: 7199646 (2007-04-01), Zupcau et al.
patent: 7227401 (2007-06-01), Zhang et al.
patent: 7253599 (2007-08-01), Chen et al.
patent: 7276890 (2007-10-01), Kumar
patent: 7495505 (2009-02-01), Chang et al.
patent: 7570107 (2009-08-01), Kim et al.
patent: 2009/0108917 (2009-04-01), Chellappa
patent: 2009/0110027 (2009-04-01), Chellappa
Rincón-Mora, G.A. “Bandgap Voltage Reference” ECE4430 Analog Integrated Circuits, 14 pages (metadata indicates document created on Dec. 2, 2002).
“Introduction to Bandgap Reference Generators,” Texas A&M University, 607(ESS), 18 pages (metadata indicates document created on Feb. 10, 2005).
Brady, III Wade J
Donovan Lincoln
Englund Terry L
Patti John J.
Telecky , Jr. Frederick J.
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