REGULATING OFF-STATE IMPEDANCE AND LEAKAGE CURRENT OF A POWER AMPLIFIER IN A TRANSCEIVER

    公开(公告)号:US20220407474A1

    公开(公告)日:2022-12-22

    申请号:US17351283

    申请日:2021-06-18

    Abstract: A power amplifier may be configured to operate in an on state and an off state. The power amplifier may include a plurality of transistors and an impedance controller circuit. The plurality of transistors may be electrically coupled to an electrical ground and an output of the power amplifier. The impedance controller circuit may be electrically coupled to the plurality of transistors and a reference voltage. The impedance controller circuit may be configured to provide the reference voltage to the plurality of transistors when the power amplifier is in the off state to cause a leakage current to flow between the reference voltage and the electrical ground.

    METHODS AND DEVICES FOR DIGITAL CLOCK MULTIPLICATION OF A CLOCK TO GENERATE A HIGH FREQUENCY OUTPUT

    公开(公告)号:US20220416770A1

    公开(公告)日:2022-12-29

    申请号:US17356564

    申请日:2021-06-24

    Abstract: A digital clock multiplier (DCM) circuit including: a plurality of power amplifier (PA) rows, wherein each PA row comprises a plurality of cascade switched capacitor power amplifiers (SCPA) unit cells configured to: receive a phase shift of a driving clock phase; and one or more processors configured to: disable of one or more of the plurality of cascade SCPA unit cells based on a frequency of the phase shift; generate an output signal for each of the cascade SCPA unit cells; and combine the output signal for each of the cascade SCPA unit cells to generate an PA row output signal.

    METHODS AND DEVICES FOR INCREASED EFFICIENCY IN LINEAR POWER AMPLIFIER

    公开(公告)号:US20220416735A1

    公开(公告)日:2022-12-29

    申请号:US17358019

    申请日:2021-06-25

    Abstract: A power amplifier circuit including a plurality of analog power amplifiers configured to generate a output power for an output signal; at least one processor configured to: select a highest output power signal; determine an input signal power of a modulated signal; determine an output signal power based on the input signal power; compare the output signal power and the highest output power; and disable a subset of the plurality of analog power amplifiers based on the comparison, wherein a remainder of the plurality of analog power amplifiers are configured to generate the output signal power.

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