Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2011-05-17
2011-05-17
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
C323S282000
Reexamination Certificate
active
07944280
ABSTRACT:
A circuit for providing a bandgap voltage. The circuit includes a classic bandgap reference voltage generation circuit including first end second serially connected transistors acting as a current mirror to another portion of the classical bandgap reference circuit and being coupled between a supply voltage Vddand an output resistor. The circuit also includes a current trimming circuit coupled in parallel with the classical bandgap reference generation circuit including a fixed element portion including a plurality of transistors and a switch portion including a plurality of switches. Each of the plurality of transistors is coupled to the supply voltage Vddand to a one of the plurality of switches and each switch includes a fuse.
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Gabillard Bertrand
Girard Philippe
Rivier Michel
Cantor & Colburn LLP
Cheng Diana J
Donovan Lincoln
International Business Machines - Corporation
Li Wenjie
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