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公开(公告)号：US20220200535A1
公开(公告)日：2022-06-23
申请号：US17129384
申请日：2020-12-21
Applicant: Qualcomm Incorporated
Inventor： Xiangdong Zhang , Ryan Scott Castro Spring , Marco Cassia , Yan Kit Gary Hau , Kanan Gandhi , Robert Wilson
Abstract: An apparatus is disclosed for waveform-tailored average power tracking. In an example aspect, the apparatus includes an amplifier, a power converter, and an average power tracking module. The amplifier is configured to amplify radio-frequency signals using a supply voltage. The radio-frequency signals have different waveforms. The power converter is coupled to the amplifier and configured to provide the supply voltage. The average power tracking module is coupled to the power converter and configured to adjust the supply voltage according to the different waveforms to cause the supply voltage to vary across at least two waveforms of the different waveforms for related average output powers.
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公开(公告)号：US12294340B2
公开(公告)日：2025-05-06
申请号：US17805168
申请日：2022-06-02
Applicant: QUALCOMM Incorporated
Inventor： Jiri Stulemeijer , Christos Komninakis , Robert Wilson , Hakan Inanoglu , Ryan Scott Castro Spring , Antonino Scuderi , Michael Lee McCloud
Abstract: Aspects of the present disclosure provide signal amplification. An example method generally includes amplifying a version of a first input signal with a power amplifier in a first state where a bias voltage of the power amplifier is set to a first voltage based on a first tracking mode; obtaining a first output signal of the power amplifier in a second state where the bias voltage is set to a second voltage less than the first voltage; determining a predistortion associated with the power amplifier based at least in part on the obtained first output signal; applying the predistortion to the first input signal; and amplifying a version of the predistorted first input signal with the power amplifier in a third state where the bias voltage is set to a third voltage based on a second tracking mode, wherein the third voltage is less than the first voltage.
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公开(公告)号：US11824500B2
公开(公告)日：2023-11-21
申请号：US17129384
申请日：2020-12-21
Applicant: Qualcomm Incorporated
Inventor： Xiangdong Zhang , Ryan Scott Castro Spring , Marco Cassia , Yan Kit Gary Hau , Kanan Gandhi , Robert Wilson
CPC classification number: H03F1/0227 , H03F3/195 , H03F2200/451
Abstract: An apparatus is disclosed for waveform-tailored average power tracking. In an example aspect, the apparatus includes an amplifier, a power converter, and an average power tracking module. The amplifier is configured to amplify radio-frequency signals using a supply voltage. The radio-frequency signals have different waveforms. The power converter is coupled to the amplifier and configured to provide the supply voltage. The average power tracking module is coupled to the power converter and configured to adjust the supply voltage according to the different waveforms to cause the supply voltage to vary across at least two waveforms of the different waveforms for related average output powers.
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公开(公告)号：US12261572B2
公开(公告)日：2025-03-25
申请号：US18483877
申请日：2023-10-10
Applicant: QUALCOMM Incorporated
Inventor： Xiangdong Zhang , Ryan Scott Castro Spring , Marco Cassia , Yan Kit Gary Hau , Kanan Gandhi , Robert Wilson
Abstract: An apparatus is disclosed for waveform-tailored average power tracking. In an example aspect, the apparatus includes an amplifier, a power converter, and an average power tracking module. The amplifier is configured to amplify radio-frequency signals using a supply voltage. The radio-frequency signals have different waveforms. The power converter is coupled to the amplifier and configured to provide the supply voltage. The average power tracking module is coupled to the power converter and configured to adjust the supply voltage according to the different waveforms to cause the supply voltage to vary across at least two waveforms of the different waveforms for related average output powers.
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