Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-02-15
2005-02-15
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
Reexamination Certificate
active
06856189
ABSTRACT:
A bandgap voltage reference generator may include a BJT (Bipolar Junction Transistor) and a pair of MOSFETs (Metal Oxide Semiconductor Field Effect Transistors) coupled to the BJT. The base-emitter voltage Vbe of the BJT may exhibit a non-linearity with respect to temperature. The difference between gate-source voltages of the pair of MOSFETs exhibits an opposite non-linearity with respect to temperature. The opposite non-linearity reduces the effect of the non-linearity on the output voltage of the bandgap voltage reference generator. The difference in gate-source voltages of the pair of MOSFETs may be determined by the ratio of channel width to channel length of each MOSFET included in the pair of MOSFETs.
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Hood Jeffrey C.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Standard Microsystems Corporation
Zweizig Jeffrey
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