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US 2004/0164805 A1Published application
Constant current biasing circuit for linear power amplifiers
AssigneeSkyworks Solutions, Inc.
InventorsPaul Andrys, Mark Bloom, Hugh J. Finlay, David Ripley, Terry Shie, Kevin Hoheisel
Life of this patent
Estimating the term…
Abstract
A constant current bias approach that receives an input bias voltage and maintains a temperature independent constant current bias in a linear amplifier device. Integrated sense circuitry protects against unacceptable input voltages to guarantee bias stability. Fabrication in multiple semiconductor technologies and assembly into a single package allows for optimum cost and performance of DC bias and RF amplifier sections.
Claims27
A constant current bias circuit comprising:
- an at least one resistor;
- and
- a bias voltage input terminal for receipt of a bias voltage connected to the at least one resistor by an electrical path resulting in a bias current when the bias voltage is present.
A constant current bias circuit comprising:
- an at least one resistor;
- and
- means for receiving a bias voltage connected to the at least one resistor by an electrical path resulting in a bias current when the bias voltage is present.
A method for constant current biasing, comprising:
- receiving an input bias voltage;
- and
- generating a bias current by at least one resistor being in receipt of the input bias voltage.
Dependencies are inferred from the claim text.