Phase locked loop circuitry
    1.
    发明授权

    公开(公告)号:US11764792B2

    公开(公告)日:2023-09-19

    申请号:US17837516

    申请日:2022-06-10

    Applicant: Socionext Inc.

    CPC classification number: H03L7/099 H03L7/0891 H03L2207/06

    Abstract: Phase Locked Loop, PLL, circuitry comprising a phase detector configured to generate a first pulse signal comprising at least one first pulse, a property of each first pulse being indicative of a phase difference between a reference signal and a feedback signal; a pulse repeater circuit configured, based on the first pulse signal, to generate a second pulse signal comprising, for each first pulse, a second pulse generated by repeating the corresponding first pulse; and an oscillator configured to generate the feedback signal and control a frequency of the feedback signal based on the second pulse signal.

    Leakage-current compensation
    2.
    发明授权

    公开(公告)号:US11528022B2

    公开(公告)日:2022-12-13

    申请号:US17370453

    申请日:2021-07-08

    Applicant: SOCIONEXT INC.

    Abstract: A leakage-current compensation circuit including: a first node for connection of a first component, a first leakage current flows through the first component and node with a given polarity, the magnitude of the first leakage current dependent on a first potential difference across the first component; a second component connected to a second node with a second leakage current flowing through the second component and node, the magnitude of the second leakage current dependent on a second potential difference across the second component; a current mirror connected to the first and second nodes to cause a compensation current, the magnitude of the compensation current dependent on the magnitude of the second leakage current; a differential amplifier connected in series with the second component along a current path carrying the second leakage current; and an AC coupling superimposing an AC-component of the first potential difference on the second potential difference.

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