Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2006-10-17
2006-10-17
Berhane, Adolf (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
07122997
ABSTRACT:
A temperature compensated low voltage reference circuit can be realized with a reduced operating voltage overhead. This is accomplished in several ways including minimizing drain voltage variation at the drains of two inter-connected transistors and implementing a current conveyer in order to adjust the temperature coefficient of an output current or voltage. Various combinations of voltage minimization and temperature coefficient adjustments may be used to design a reference circuit to a circuit designer's preference. A temperature compensated current source may also be created. The temperature compensated current source may be used to provide a wide range of output voltages. All of the reference circuits may be constructed with various types of transistors including DTMOS transistors.
REFERENCES:
patent: 3617859 (1971-11-01), Dobkin et al.
patent: 3754181 (1973-08-01), Kreitz et al.
patent: 3887863 (1975-06-01), Brokaw
patent: 4447784 (1984-05-01), Dobkin
patent: 4525663 (1985-06-01), Henry
patent: 4902959 (1990-02-01), Brokaw
patent: 5942887 (1999-08-01), Annema
patent: 6249176 (2001-06-01), Pease
patent: 6426669 (2002-07-01), Friedman et al.
patent: 6501256 (2002-12-01), Jaussi et al.
patent: 6529066 (2003-03-01), Guenot et al.
patent: 6630859 (2003-10-01), Wang
patent: 6677808 (2004-01-01), Sean et al.
patent: 6693415 (2004-02-01), Johnson
patent: 6710583 (2004-03-01), Stanescu et al.
patent: 6750641 (2004-06-01), Ivanov et al.
R. J. Widlar, “New Development in IC Voltage Regulators,”IEEE Journal of Solid-State Circuits, vol. SC-6, pp. 2-7, Feb. 1971.
K. E. Kuijk, “A Precision Reference Voltage Source,”IEEE Journal of Solid-State Circuits, vol. SC-8, pp. 222-226, Jun. 1973.
A. P. Brokaw, “A Simple Three-Terminal IC Bandgap Reference,”IEEE Journal of Solid-State Circuits, vol. SC-9, pp. 388-393, Dec. 1974.
Gerard C. M. Meijer and Jan B. Verhoeff, “An Integrated Bandgap Reference,”IEEE Journal of Solid-State Circuits, vol. SC-11, pp. 403-406, Jun. 1976.
Eric A. Vittoz, “MOS Transistors Operated in the Lateral Bipolar Mode and Their Application in CMOS Technology,”IEEE Journal of Solid-State Circuits, vol. SC-18, No. 3, pp. 273-279, Jun. 1983.
Marc G. R. Degrauwe, Oskar N. Leuthold, Eric A. Vittoz, Henri J. Oguey, and Arthur Descombes, “CMOS Voltage References Using Lateral Bipolar Transistors,”IEEE Journal of Solid-States Circuits, vol. SC-20, No. 6, pp. 1151-1157, Dec. 1985.
Hironori Banba, Hitoshi Shiga, Akira Umezawa, Takeshi Miyaba, Toru Tanzawa, Shigeru Atsumi, and Kojl Sakui, “A CMOS Bandgap Reference Circuit with Sub-1-V Operation,”IEEE Journal of Solid-State Circuits, vol. SC-34, pp. 670-674, May 1999.
Anne-Johan Annema, “Low-Power Bandgap References Featuring DTMOST's,”IEEE Journal of Solid-State Circuits, vol. 34, No. 7, pp. 949-955, Jul. 1999.
Ka Nang Leung and Philip K. T. Mok, “A Sub-1-V 15-ppm/° C. CMOS Bandgap Voltage Reference Without Requiring Low Threshold Voltage Device,”IEEE Journal of Solid-State Circuits, vol. 37, No. 4, pp. 526-530, Apr. 2002.
Jiwei Chen and Bingxue Shi, “1V CMOS Current Reference with 50ppm/° C. Temperature Coefficient,”Electronics Letters, vol. 39, No. 2, pp. 209-210, Jan. 23, 2003.
Berhane Adolf
Honeywell International , Inc.
McDonnell Boehnen & Hulbert & Berghoff LLP
LandOfFree
Temperature compensated low voltage 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 Temperature compensated low voltage reference circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature compensated low voltage reference circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3641678