Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-08-01
2006-08-01
Nguyen, Linh My (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S513000, C323S313000
Reexamination Certificate
active
07084698
ABSTRACT:
A band-gap reference circuit for generation of voltages and currents independent of process, voltage, and temperature includes three inversely proportional to absolute temperature (IPTAT) current generators. The IPTAT current generators generate three currents that are added to generate a current independent of the absolute temperature. The generated current is passed through a switched capacitor resistor to generate the band-gap reference voltage across the switched capacitor resistor.
REFERENCES:
patent: 4374357 (1983-02-01), Olesin et al.
patent: 4396833 (1983-08-01), Pan
patent: 4978868 (1990-12-01), Giordano et al.
patent: 5408174 (1995-04-01), Leonowich
patent: 5760639 (1998-06-01), Hall
patent: 6016051 (2000-01-01), Can
patent: 6023189 (2000-02-01), Seelbach
patent: 6060874 (2000-05-01), Doorenbos
patent: 6111397 (2000-08-01), Leung
patent: 6160391 (2000-12-01), Banba
patent: 6191637 (2001-02-01), Lewicki et al.
patent: 6194944 (2001-02-01), Wert
patent: 6281743 (2001-08-01), Doyle
patent: 6356066 (2002-03-01), Iliasevitch
patent: 6366071 (2002-04-01), Yu
patent: 6407622 (2002-06-01), Opris
patent: 6426669 (2002-07-01), Friedman et al.
patent: 6531857 (2003-03-01), Ju
patent: 6563371 (2003-05-01), Buckley et al.
patent: 6577302 (2003-06-01), Hunter et al.
patent: RE38250 (2003-09-01), Slemmer
patent: 6642778 (2003-11-01), Opris
patent: 6784725 (2004-08-01), Wadhwa et al.
patent: 2003/0222706 (2003-12-01), Enriquez et al.
patent: 2004/0155700 (2004-08-01), Gower et al.
patent: 2006/0006858 (2006-01-01), Chiu
Ogey, H. and Aebischer, D., CMOS Current Reference Without Resistance, IEEE J. Solid-State Circuits, vol. 32, No. 7, pp. 1132-1135, Jul. 1997.
Torelli, G. and de la Plaza, M., Tracking Switched-Capacitor CMOS Currect Reference, IEE Proc. Circuit Devices Systems, vol. 145, No. 1, pp. 44-47, Feb. 1998.
Malik, S.Q., Schlarmann, M.E., and Geiger, R.L., A Low Temperature Sensitivity Switched-Capacitor Current Reference, European Conference on Circuit Theory and Design, Espoo, Finaland, Aug. 28-31, 2001.
Khan, Q.A., Wadhwa, S.K., and Misri, K., A Low Voltage Switched-Capacitor Current Reference Circuit with Low Dependence on Process, Voltage and Temperature, 16thInternational Conference on VLSI Design, New Delhi, India, Jun. 4-8, 2003.
Khan Qadeer A.
Misri Kulbhushan
Wadhwa Sanjay K.
Bergere Charles
Freescale Semiconductor Inc.
Hiltunen Thomas J.
Nguyen Linh My
LandOfFree
Band-gap reference circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Band-gap reference circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Band-gap reference circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3662339