Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2008-05-09
2009-08-18
Zweizig, Jeffrey S (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S513000
Reexamination Certificate
active
07576599
ABSTRACT:
A voltage generating apparatus including a current source, a first voltage source, a second voltage source, a first differential pair, a second differential pair, a voltage divider and a current mirror is provided. The voltage divider is used for reducing a voltage with a negative temperature coefficient, so as to reduce the amplification ratio of the voltage with a positive temperature coefficient used for compensating the negative temperature coefficient.
REFERENCES:
patent: 7256643 (2007-08-01), Pan et al.
Article titled “A Low-Voltage Low-Power Voltage Reference Based on Subthreshold MOSFETs ” authored by Giustolisi et al., IEEE Journal of Solid-State Circuits, vol. 38, No. 1, Jan. 2003 (pp. 151-154).
Article titled “A Sub-1-V 15-ppm/oC CMOS Bandgap Voltage Reference Without Requiring Low Threshold Voltage Device ” authored by Leung et al., IEEE Journal of Solid-State Circuits, vol. 37, No. 4, Apr. 2002 (pp. 526-530).
Article titled “A CMOS Bandgap Reference Without Resistors ” authored by Buck et al., IEEE Journal of Solid-State Circuits, vol. 37, No. 1, Jan. 2002 (pp. 81-83).
Article titled “A CMOS Voltage Reference Based on Weighted {Delta} VGS for CMOS Low-Dropout linear Regulators ” authored by Leung, et al., IEEE Journal of Solid-State Circuits, vol. 38, No. 1, Jan. 2003 (pp. 146-150).
Chu Yuan-Hua
Huang Hong-Yi
Wang Ru-Jie
Industrial Technology Research Institute
Jianq Chyun IP Office
Zweizig Jeffrey S
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