Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2006-06-13
2006-06-13
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S543000, C330S288000, C323S315000
Reexamination Certificate
active
07061307
ABSTRACT:
A current compensation circuit for use with a current mirror is disclosed. The current mirror circuit has a current path defined by a first current mirror stage driving a second current mirror stage, the second current mirror stage is coupled to a supply voltage source. The current compensation circuit comprises an impedance divider coupled to the supply voltage and an output node. The impedance divider operates to generate a compensation signal at the node representative of voltage changes in the supply voltage source. The compensation circuit further includes a gain stage having an input coupled to the output node and a current output connected to the current path. The gain stage operates to generate a compensation current for application to the current path in response to the compensation signal.
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English Abstract of EP 1187331.
Teradyne, Inc.
Wells Kenneth B.
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