Method of operating photovoltaic generators, corresponding circuit, device and system

    公开(公告)号:US10587222B2

    公开(公告)日:2020-03-10

    申请号:US15921427

    申请日:2018-03-14

    Inventor: Andrea Pallotta

    Abstract: A photovoltaic power generation plant includes a plurality of photovoltaic generators cooperative in producing photovoltaic power. Coupled with the photovoltaic generators in the plurality of photovoltaic generators are respective sensor devices, the sensor devices including sensor circuits of the individual current-to-voltage characteristics of the photovoltaic generators. The sensor circuits in the sensor devices can be activated to sense the individual current-to-voltage characteristics of the photovoltaic generators, with the individual current-to-voltage characteristic being indicative of the functionality of each photovoltaic generator.

    APPARATUS AND METHOD FOR LINEARIZING A TRANSMISSION SIGNAL

    公开(公告)号:US20220116062A1

    公开(公告)日:2022-04-14

    申请号:US17468053

    申请日:2021-09-07

    Inventor: Andrea Pallotta

    Abstract: A embodiment method, for linearizing a transmission signal resulting from a quadrature amplitude modulation of an analog baseband signal and a radiofrequency amplification, comprises a demodulation of a feedback signal taken from the transmission signal, a comparison between the demodulated feedback signal and the baseband signal, a digital calculation of a predistortion control signal based on the comparison, and an analog predistortion of the analog baseband signal controlled by the predistortion control signal.

    ELECTRONIC CIRCUIT FOR TRIPLING FREQUENCY

    公开(公告)号:US20220140822A1

    公开(公告)日:2022-05-05

    申请号:US17577292

    申请日:2022-01-17

    Abstract: In an embodiment, a circuit for tripling frequency is configured to receive an input voltage (Vin) having a sinusoidal shape and a base frequency. The circuit has a first and a second transistor pair that are cross-coupled, and a trans-characteristics f(Vin) approximating a polynomial nominal trans-characteristic given by f ⁡ ( V i ⁢ n ) = ( 3 A ⁢ V i ⁢ n - 4 A 3 ⁢ V i ⁢ n 3 ) ⁢ g m where A represents an amplitude of the input voltage and gm is a transconductance of transistors of the first and second transistor pairs.

    ELECTRONIC CIRCUIT FOR TRIPLING FREQUENCY

    公开(公告)号:US20210091757A1

    公开(公告)日:2021-03-25

    申请号:US17025288

    申请日:2020-09-18

    Abstract: In an embodiment, a circuit for tripling frequency is configured to receive an input voltage (Vin) having a sinusoidal shape and a base frequency. The circuit has a first and a second transistor pair that are cross-coupled, and a trans-characteristics f(Vin) approximating a polynomial nominal trans-characteristic given by f  ( V in ) = ( 3 A  V in - 4 A 3  V in 3 )  g m where A represents an amplitude of the input voltage and gm is a transconductance of transistors of the first and second transistor pairs.

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