Voltage multiplier circuit
AssigneeIntel Corporation
InventorsAaron K. Martin, David J. Comer
Life of this patent
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Abstract
A voltage multiplier circuit includes a voltage-to-current converter, a current multiplier, and load devices. The voltage-to-current converter receives a differential input voltage, and produces a differential current. The differential current is received by the current multiplier, which produces a scaled output current. The amount of scaling is provided by a digital control word. Load devices produce a differential output voltage from the scaled output current. Multiple voltage-to-current converters and current multipliers can be coupled in parallel so that the scaled output currents sum.
Claims28
A circuit comprising:
- a voltage-to-current converter having a differential input node and a differential output node;
- and
- a current multiplier coupled to the differential output node of the voltage-to-current converter circuit.
A circuit comprising:
- a differential pair of input transistors to convert a differential input voltage into a first differential current;
- a current multiplier coupled to the differential pair of transistors to produce a second differential current in response to the first differential current;
- and
- a pair of load devices to produce a differential output voltage in response to the second differential current.
An integrated circuit comprising a voltage multiplier circuit that includes a current multiplier with a digitally programmable current gain.
An integrated circuit comprising:
- a plurality of voltage-to-current converters to receive a plurality of differential input voltages and produce a plurality of differential currents;
- and
- a plurality of current multipliers coupled to a common output node, each of the plurality of current multipliers coupled to a corresponding one of the plurality of voltage-to-current converters to receive a corresponding one of the plurality of differential currents.
Dependencies are inferred from the claim text.