Circuits and devices related to compensated power detectors
AssigneeSkyworks Solutions, Inc.
InventorEdward John Wemyss Whittaker
Life of this patent
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Abstract
Circuits and devices related to compensated power detectors. In some embodiments, a power amplifier can include an amplification stage configured to receive a signal at an input and provide an amplified signal at an output, and a detector coupled to the output of the amplification stage and configured to generate a slow-varying or direct-current signal as an input signal representative of power associated with the amplified signal. The detector can be further configured to generate an output signal based on the input signal and a compensation signal resulting from a combination of a first current representative of the input signal and a second current representative of an operating condition associated with the power amplifier.
Claims20
A power amplifier comprising:
- an amplification stage configured to receive a signal at an input and provide an amplified signal at an output;
- and
- a detector coupled to the output of the amplification stage and configured to generate a slow-varying or direct-current signal as an input signal representative of power associated with the amplified signal, the detector further configured to generate an output signal based on the input signal and a compensation signal resulting from a combination of a first current representative of the input signal and a second current representative of an operating condition associated with the power amplifier.
A radio-frequency module comprising:
- a packaging substrate configured to receive a plurality of components;
- and
- a power amplifier implemented on the packaging substrate and including an amplification stage configured to receive a signal at an input and provide an amplified signal at an output, the power amplifier further including a detector coupled to the output of the amplification stage and configured to generate a slow-varying or direct-current signal as an input signal representative of power associated with the amplified signal, the detector further configured to generate an output signal based on the input signal and a compensation signal resulting from a combination of a first current representative of the input signal and a second current representative of an operating condition associated with the power amplifier.
A wireless device comprising:
- a transmitter circuit configured to generate a signal;
- a power amplifier in communication with the transmitter circuit and including an amplification stage configured to receive the signal at an input and provide an amplified signal at an output, the power amplifier further including a detector coupled to the output of the amplification stage and configured to generate a slow-varying or direct-current signal as an input signal representative of power associated with the amplified signal, the detector further configured to generate an output signal based on the input signal and a compensation signal resulting from a combination of a first current representative of the input signal and a second current representative of an operating condition associated with the power amplifier;
- and
- an antenna in communication with the power amplifier and configured to facilitate transmission of a transmit signal having at least some adjustment based on the compensation signal.
Dependencies are inferred from the claim text.