SUPPLY MODULATOR AND WIRELESS COMMUNICATION APPARATUS INCLUDING THE SAME

    公开(公告)号:US20210408969A1

    公开(公告)日:2021-12-30

    申请号:US17313364

    申请日:2021-05-06

    Abstract: A supply modulator including a multiple output voltage regulator (MOVR) configured to output voltages in a discrete level-envelope tracking mode (DLETM) having different levels from each other respectively corresponding to reference output voltage signals, a switching regulator configured to output a switching regulator voltage, an output voltage being based on the switching regulator voltage and a selected voltage among the voltages in the DLETM and based on the switching regulator voltage in an average power tracking mode, a switching regulator controller configured to sense an output current of the MOVR to obtain a sensing value, and control the switching regulator based on the sensing value in the DLETM, a switch array comprising switches respectively corresponding to the voltages and configured to selectively connect the selected voltage to a power amplifier by performing a switching operation, and a switch controller configured to control the switching operation.

    SUPPLY MODULATOR AND WIRELESS COMMUNICATION DEVICE INCLUDING THE SAME

    公开(公告)号:US20250070722A1

    公开(公告)日:2025-02-27

    申请号:US18741079

    申请日:2024-06-12

    Abstract: A power modulator configured to provide a supply voltage of a power amplifier. The power modulator includes a converter configured to output the supply voltage to the power amplifier, a switch connected to a first capacitor and a second capacitor, a first end of the first capacitor being connected to the converter, a second end of the first capacitor being connected to the switch, a first end of the second capacitor being connected to the converter, a second end of the second capacity being connected to a ground and the switch, and a capacitance of the second capacitor being less than a capacitance of the first capacitor, and a driver connected to the switch, the driver being configured to turn off the switch based on an occurrence of a transition of the supply voltage.

    SUPPLY MODULATOR AND WIRELESS COMMUNICATION APPARATUS INCLUDING THE SAME

    公开(公告)号:US20240213924A1

    公开(公告)日:2024-06-27

    申请号:US18597190

    申请日:2024-03-06

    CPC classification number: H03F1/0238 H03F3/245 H03F2200/105 H03F2200/451

    Abstract: A supply modulator including a multiple output voltage regulator (MOVR) configured to output voltages in a discrete level-envelope tracking mode (DLETM) having different levels from each other respectively corresponding to reference output voltage signals, a switching regulator configured to output a switching regulator voltage, an output voltage being based on the switching regulator voltage and a selected voltage among the voltages in the DLETM and based on the switching regulator voltage in an average power tracking mode, a switching regulator controller configured to sense an output current of the MOVR to obtain a sensing value, and control the switching regulator based on the sensing value in the DLETM, a switch array comprising switches respectively corresponding to the voltages and configured to selectively connect the selected voltage to a power amplifier by performing a switching operation, and a switch controller configured to control the switching operation.

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