Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-11-22
2009-06-02
Donovan, Lincoln (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S513000, C327S540000, C327S542000, C323S313000, C323S316000
Reexamination Certificate
active
07541862
ABSTRACT:
A reference voltage generating circuit is described. The circuit includes a current generating section that generates a first current having a positive temperature coefficient, a voltage generating section that generates a voltage having a negative temperature coefficient, a synthesis section that generates a voltage which is the sum of a voltage having a positive temperature coefficient and developed across both terminals of a resistor, where the voltage has a negative temperature coefficient, and a compensation current generating section that generates a second current having a positive temperature coefficient. The current corresponding to the sum of said first and second currents is caused to flow through the resistor. The synthesis section generates a voltage which is a sum of a terminal voltage of the resistor by the sum current of the first and second currents and the voltage having a negative temperature coefficient.
REFERENCES:
patent: 5619163 (1997-04-01), Koo
patent: 6489835 (2002-12-01), Yu et al.
patent: 7253597 (2007-08-01), Brokaw
patent: 2007/0046363 (2007-03-01), Tanzawa
patent: 2007/0052473 (2007-03-01), McLeod
patent: 8-320730 (1996-12-01), None
B. Razavi, “Designing of Analog CMOS Integrated Circuit,” pp. 470-471, translated by Tadahiro Kuroda, published by Maruzen Co., Ltd.
Fujisawa Hiroki
Nakamura Masayuki
Tanaka Hitoshi
Donovan Lincoln
Elpida Memory Inc.
Fox & Lardner LLP
O'Neill Patrick
LandOfFree
Reference voltage generating 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 Reference voltage generating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reference voltage generating circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4131243