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公开(公告)号：US12261577B2
公开(公告)日：2025-03-25
申请号：US17356424
申请日：2021-06-23
Applicant: QUALCOMM Incorporated
Inventor： Jeremy Goldblatt , Arul Balasubramaniyan , Chinmaya Mishra , Damin Cao , Bhushan Shanti Asuri
Abstract: A peak detector for a power amplifier is provided that includes a threshold voltage detector configured to pulse a detection current in response to an amplified output signal from the amplifier exceeding a peak threshold. A plurality of such peak detectors may be integrated with a corresponding plurality of power amplifiers in a transmitter. Should any peak detector assert an alarm signal or more than a threshold number of alarm signals during a given period, a controller reduces a gain for the plurality of power amplifiers.
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公开(公告)号：US11656254B2
公开(公告)日：2023-05-23
申请号：US16932589
申请日：2020-07-17
Applicant: QUALCOMM Incorporated
Inventor： Abdellatif Bellaouar , Arul Balasubramaniyan , Gurkanwal Singh Sahota , Muhammad Hassan , Jorge Garcia , Bhushan Shanti Asuri , Ravi Sridhara , Omar Essam El-Aassar , Chinmaya Mishra
IPC: G01R21/10 , G01R21/133 , H03F3/45 , H03M1/12
CPC classification number: G01R21/10 , G01R21/133 , H03F3/45475 , H03F2200/171 , H03F2200/294 , H03F2200/451 , H03M1/12
Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.
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公开(公告)号：US11546004B2
公开(公告)日：2023-01-03
申请号：US17211769
申请日：2021-03-24
Applicant: QUALCOMM Incorporated
Inventor： Meysam Azin , Li Lu , Anees Habib , Chinmaya Mishra , Damin Cao , Arul Balasubramaniyan , David Ta-hsiang Lin , Shuang Zhu , Dinesh Jagannath Alladi
Abstract: Aspects of the disclosure relate to an apparatus for wireless communication. The apparatus may include a set of power detectors configured to generate a set of analog signals related to a set of output signal power levels of a set of transmit chains of a transmitter, respectively; an analog summer; a set of switching devices configured to send a selected one or more of the set of analog signals to the analog summer, and substantially isolated unselected one or more of the set of power detectors from the analog summer, wherein the analog summer is configured to generate a cumulative analog signal based on a sum of the selected one or more of the set of analog signals; an analog-to-digital converter (ADC) configured to generate a digital signal based on the cumulative analog signal; and a controller configured to control the set of switching devices.
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公开(公告)号：US12146902B2
公开(公告)日：2024-11-19
申请号：US18306616
申请日：2023-04-25
Applicant: QUALCOMM Incorporated
Inventor： Abdellatif Bellaouar , Arul Balasubramaniyan , Gurkanwal Singh Sahota , Muhammad Hassan , Jorge Garcia , Bhushan Shanti Asuri , Ravi Sridhara , Omar Essam El-Aassar , Chinmaya Mishra
IPC: G01R21/10 , G01R21/133 , H03F3/45 , H03M1/12
Abstract: In certain aspects, a method is provided for measuring power using a resistive element coupled between a power amplifier and an antenna. The method includes squaring a voltage from a first terminal of the resistive element to obtain a first signal, squaring a voltage from a second terminal of the resistive element to obtain a second signal, and generating a measurement signal based on a difference between the first signal and the second signal. In some implementations, the resistive element is implemented with a power switch.
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