Voltage regulator for field programmable gate arrays
AssigneeCrosspoint Solutions, Inc.
InventorGary L. Allman
Life of this patent
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Abstract
A voltage regulator especially adaptable for use with field-programmable gate arrays (FPGA). The voltage regulator is configurable as a true voltage regulator or, alternatively, as a pseudo-voltage regulator. The voltage regulator includes circuitry to rapidly generate an operating voltage for the core or nucleus logic elements. Additional circuitry is provided to reduce the steady-state power consumption once the operating voltage is reached. To compensate for die-to-die variations, additional circuitry is also provided to adjust the compensation delays or switching rates.
Claims7
A semiconductor device having a plurality of core logic elements, comprising:
- a voltage regulator means, adapted to receive an external voltage and a reference-level voltage, for generating a first voltage having a magnitude between said external voltage and said reference-level voltage;
- a core logic power supply means for generating a second voltage, said second voltage having a magnitude between said external voltage and said reference-level voltage;
- and
- selection means for supplying said first voltage to said core logic elements in response to one state of a control signal and for supplying said second voltage to said core logic elements in response to another state of said control signal.
Dependencies are inferred from the claim text.