Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2011-03-22
2011-03-22
Hiltunen, Thomas J (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S536000
Reexamination Certificate
active
07911261
ABSTRACT:
A substrate biasing circuit may include a first pump control circuit that generates a first control signal in response to a first reference voltage and a voltage of a first substrate portion, and includes a first reference generator coupled between a temperature compensated voltage and a reference power supply voltage that varies the first reference voltage in response to the voltage of the first substrate voltage and the temperature compensated voltage. A first clamp circuit may generate a first clamp signal in response to a first limit voltage and the voltage of the first substrate portion, the first limit voltage being a scaled version of the temperature compensated voltage. A first charge pump may pump the first substrate portion in at least a first voltage direction in response to the first control signal, and is prevented from pumping in the first voltage direction in response to the first clamp signal.
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Haverstock & Owens LLP
Hiltunen Thomas J
NetLogic Microsystems, Inc.
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