Switched-Capacitor Tuning of a Proportional-Integral-Derivative Controller

    公开(公告)号:US20190052170A1

    公开(公告)日:2019-02-14

    申请号:US15675812

    申请日:2017-08-14

    Inventor: John Suarez

    Abstract: Various embodiments are described that relate to a proportional-integral-derivative controller. The proportional-integral-derivative controller obtains an input voltage and from the input voltage produces an output voltage. Achievement of a particular output voltage can be accomplished through variable resistances in the proportional-integral-derivative controller. To realize these variable resistances, a switching capacitor set can be employed. The switching capacitor set can include individual capacitors with switches. The switches can function with a switching frequency. The switching frequency causes individual capacitors to function with an effective resistance. The resistance can directly correspond to the switching frequency. To change the resistance, the switching frequency can be changed.

    LEAKAGE CURRENT COMPENSATION CIRCUIT AND SEMICONDUCTOR DEVICE

    公开(公告)号:US20180217624A1

    公开(公告)日:2018-08-02

    申请号:US15879668

    申请日:2018-01-25

    Applicant: ABLIC Inc.

    CPC classification number: G05F1/625 H01L23/58

    Abstract: Provided is a leakage current compensation circuit including: a compensation MOS transistor, which has a drain and a source connected to each other, and a bulk connected to a ground terminal, and is configured to generate a compensation current that is equal in magnitude to a leakage current of a MOS transistor of a current output circuit; and a current mirror circuit, which has an input terminal connected to the drain and the source of the compensation MOS transistor, and an output terminal connected to the MOS transistor of the current output circuit. The leakage current compensation circuit includes the MOS transistor for compensation for the leakage current, which has a small area, and is capable of compensating for a gate leakage current.

    Power sharing device and method thereof

    公开(公告)号:US09898022B2

    公开(公告)日:2018-02-20

    申请号:US14320621

    申请日:2014-06-30

    CPC classification number: G05F1/625 H02J1/10 Y10T307/549

    Abstract: A power sharing device and method thereof are disclosed herein. The power sharing device includes a control unit, multiple regulators and multiple feedback circuits. Each regulator includes a first input terminal, a second input terminal and an output terminal. The control unit generates multiple pulse-width modulation signals. The first input terminal receives one of multiple input voltages. The second input terminal receives one of the pulse width modulation signals. The output terminal selectively outputs an output power. Each feedback circuit is coupled between the second input terminal and the output terminal of one of the regulators. The output terminals of the regulators are coupled to a load, and the regulators selectively output the output power one at a time and in rotation according to the input voltages and duty cycles of the pulse-width modulation signals.

    Digital low drop-out regulator
    10.
    发明授权

    公开(公告)号:US09870014B1

    公开(公告)日:2018-01-16

    申请号:US15423690

    申请日:2017-02-03

    CPC classification number: G05F1/625

    Abstract: A regulator may comprise: an ADC unit for detecting a change in an output voltage and outputting an error code based on the detected result; a digital processing unit for generating a proportional control signal, a plurality of integral control signals, a counting signal, and an error sign signal based on the error code, outputting pull-up and pull-down control signals by multiplying the error code by a proportional gain factor in response to the proportional control signal, and outputting a plurality of sub-pull-up control signals by performing integration on the integral control signals based on the counting signal and multiplying the integration result by an integral gain factor; a first driving unit for outputting a first current in response to the pull-up and pull-down control signals; and a second driving unit for outputting a second current in response to the sub-pull-up control signals.

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