Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2007-05-08
2007-05-08
Zweizig, Jeffrey (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S143000
Reexamination Certificate
active
11174927
ABSTRACT:
A reference voltage generator circuit includes: a band gap circuit that outputs a predetermined voltage to an output terminal; a plurality of current mirror circuits, a gate electrode of at least one of which being coupled with one current path, and a gate electrode of at least another one of which being coupled with an other current path, and which are further coupled with the band gap circuit so as to supply an output current to the output terminal corresponding to a current flowing in either the one or the other current path; and a control unit that detects an output voltage of the output terminal of the band gap circuit and that controls a current flowing in at least the one or the other current path corresponding to the detected output voltage.
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M. Waltari, et al., “Reference Voltage Driver for Low-Voltage CMOS A/D Converters”, Proceedings of ICECS 2000, vol. 1, pp. 28-31 (2000), no month.
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