Self-biasing output booster amplifier and use thereof
AssigneeSonion Nederland B.V.
InventorsMichiel van Nieuwkerk, Yang Gao
Life of this patent
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Abstract
A self-biasing output booster amplifier having an input amplifier stage, an output amplifier stage being operatively connected to an output of the input amplifier stage, and first and second current copying circuits. The second current copying circuit is biased from an output of the self-biasing output booster amplifier. The first and second current copying circuits are configured to copy at least a portion of the current through the output amplifier stage. The sum of the output of the second current copying circuit and the output of the output amplifier stage provides the output current of the self-biasing output booster amplifier, Finally, the input amplifier stage is biased from the output of the second current copying.
Claims20
A self-biasing output booster amplifier comprising
- an input amplifier stage,
- an output amplifier stage being operatively connected to an output of the input amplifier stage, and
- first and second current copying circuits, wherein the second current copying circuit is biased from an output of the self-biasing output booster amplifier
- wherein the first and second current copying circuits are configured to copy at least a portion of the current through the output amplifier stage, and
- wherein the sum of the output of the second current copying circuit and the output of the output amplifier stage provides the output current of the self-biasing output booster amplifier, and
- wherein the input amplifier stage is biased from the output of the second current copying circuits.
Dependencies are inferred from the claim text.