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    Method of determining the state of charge of a battery of an electronic appliance
    11.
    发明授权
    Method of determining the state of charge of a battery of an electronic appliance 有权

    公开(公告)号：US10073144B2

    公开(公告)日：2018-09-11

    申请号：US14494373

    申请日：2014-09-23

    Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

    Inventor： Christophe Lorin ,  Jean-Francois Garnier ,  Aurélien Mazard

    IPC: G01R31/36

    CPC classification number: G01R31/3842 ,  G01R31/3648 ,  G01R31/367

    Abstract: A state of charge of a battery is estimated in several iterations, each iteration including: acquiring a measurement of intensity of current supplied by the battery, acquiring a measurement of voltage supplied by the battery, estimating a first state of charge of the battery based on a first estimated state of charge obtained upon a previous iteration and on the current intensity measurement, estimating a value of intensity of current supplied by the battery based on the voltage measurement and on a state of charge of the battery obtained upon the previous iteration, and calculating a corrected state of charge by adding to the first estimated state of charge a corrective term obtained by the product of a first correction gain multiplied by a factor representative of a difference between the estimated and measured current intensities.

    USB power delivery interface
    13.
    发明授权
    USB power delivery interface 有权

    公开(公告)号：US12093098B2

    公开(公告)日：2024-09-17

    申请号：US17647125

    申请日：2022-01-05

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin ,  Nathalie Ballot

    IPC: G06F1/26 ,  G06F13/40

    CPC classification number: G06F1/266 ,  G06F13/4068 ,  G06F2213/0042

    Abstract: The present disclosure relates to an USB PD-type interface including a first node receiving a first potential, a second node delivering a second potential, and a third node at a reference potential; a resistor connected between a fourth node coupled to the first node, and a fifth node; a MOS transistor connected between the fifth node and the second node; a bipolar transistor having a collector connected to a gate of the MOS transistor and an emitter connected to the fourth node or to the fifth node; and a circuit configured to deliver a control potential to a base of the bipolar transistor determined from a current in the first resistor.

    METHOD OF DETERMINING THE STATE OF CHARGE OF A BATTERY OF AN ELECTRONIC APPLIANCE
    16.
    发明申请
    METHOD OF DETERMINING THE STATE OF CHARGE OF A BATTERY OF AN ELECTRONIC APPLIANCE 审中-公开
    确定电子电器充电状态的方法

    公开(公告)号：US20150088443A1

    公开(公告)日：2015-03-26

    申请号：US14494373

    申请日：2014-09-23

    Applicant: STMICROELECTRONICS (GRENOBLE 2) SAS

    Inventor： Christophe Lorin ,  Jean-Francois Garnier ,  Aurélien MAZARD

    IPC: G01R31/36

    CPC classification number: G01R31/3624 ,  G01R31/3648 ,  G01R31/3651

    Abstract: A state of charge of a battery is estimated in several iterations, each iteration including: acquiring a measurement of intensity of current supplied by the battery, acquiring a measurement of voltage supplied by the battery, estimating a first state of charge of the battery based on a first estimated state of charge obtained upon a previous iteration and on the current intensity measurement, estimating a value of intensity of current supplied by the battery based on the voltage measurement and on a state of charge of the battery obtained upon the previous iteration, and calculating a corrected state of charge by adding to the first estimated state of charge a corrective term obtained by the product of a first correction gain multiplied by a factor representative of a difference between the estimated and measured current intensities.

    Abstract translation: 电池的充电状态是以多次迭代进行推定的，每次迭代包括：获取由电池提供的电流强度的测量值，获取由电池提供的电压的测量值，基于电池估计电池的第一充电状态 在先前迭代中获得的第一估计状态电荷和当前强度测量值，基于电压测量估计由电池提供的电流的强度值，以及在先前迭代时获得的电池的充电状态，以及 通过将第一校正增益乘以表示估计电流强度与测量电流强度之间的差的因子的乘积相加得到的第一估计充电状态来计算校正状态。

    MAINS MONITORING
    17.
    发明公开
    MAINS MONITORING 审中-公开

    公开(公告)号：US20230176093A1

    公开(公告)日：2023-06-08

    申请号：US18053974

    申请日：2022-11-09

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin

    IPC: G01R15/14 ,  G01R1/20 ,  G01R27/14

    CPC classification number: G01R15/146 ,  G01R1/203 ,  G01R27/14

    Abstract: In accordance with an embodiment, an integrated circuit chip includes a first input configured to receive a rectified potential and a second input configured to receive a reference potential; a first circuit configured to maintain the rectified potential at a constant value on the first input; a second circuit having a power supply input coupled to the first node; a first resistor series-connected to the first circuit between the second input and the first node, or connected between the first input and the first node; a third circuit connected across the first resistor and configured to deliver a signal which is an image of a current in the first resistor; and a fourth circuit configured to determine a mains frequency and/or a mains voltage based at least on the signal which is the image of the current in the first resistor.

    Method and device for decreasing the power supply voltage of a c-type USB receiver device supporting a USB power delivery mode
    18.
    发明授权
    Method and device for decreasing the power supply voltage of a c-type USB receiver device supporting a USB power delivery mode 有权

    公开(公告)号：US11018576B2

    公开(公告)日：2021-05-25

    申请号：US16379461

    申请日：2019-04-09

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin

    IPC: H02M3/06 ,  H02M3/07 ,  G06F1/26 ,  H02M1/00

    Abstract: A USB source device, supporting USB Power Delivery mode and coupled to a USB receiver device, includes a power converter delivering a supply voltage and a capacitive network coupled to the power converter. A method for managing the supply voltage on an output power supply pin of the USB source device includes discharging the capacitive network so as to reduce the supply voltage in response to a request to reduce the supply voltage by the USB receiver device to a target voltage. The method also includes delivering, to the power converter, a setpoint voltage for the supply voltage, a value of the setpoint voltage being reduced non-linearly so as to keep a temporal variation of the setpoint voltage lower than that of the supply voltage.

    Method and device for managing a supply voltage
    19.
    发明授权
    Method and device for managing a supply voltage 有权

    公开(公告)号：US10928843B2

    公开(公告)日：2021-02-23

    申请号：US16111933

    申请日：2018-08-24

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin

    IPC: G05F1/46 ,  H02M1/10 ,  H02M7/04 ,  H03K5/00 ,  H02M1/00 ,  G06F13/38

    Abstract: A device can be used for managing for managing the supply voltage on an output power supply pin of a USB Type-C source device that includes an AC-to-DC power converter for delivering the supply voltage. The source device is capable of supplying power to a receiver device. A power supply controller includes a first circuit configured to deliver a signal for discharging a capacitive network coupled to the power converter and also includes a second circuit configured to deliver, at the same time as the discharge signal, a new setpoint signal, corresponding to the new voltage delivered, to a control input of the power converter. A delay element is coupled between an output of the second circuit and the control input.

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