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    USB POWER DELIVERY INTERFACE
    1.
    发明申请
    USB POWER DELIVERY INTERFACE 有权

    公开(公告)号：US20220244770A1

    公开(公告)日：2022-08-04

    申请号：US17647125

    申请日：2022-01-05

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin ,  Nathalie Ballot

    IPC: G06F1/26

    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 OPERATING A RECEIVER DEVICE
    5.
    发明申请
    METHOD OF OPERATING A RECEIVER DEVICE 审中-公开

    公开(公告)号：US20190064859A1

    公开(公告)日：2019-02-28

    申请号：US16111933

    申请日：2018-08-24

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin

    IPC: G05F1/46

    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.

    USB POWER DELIVERY INTERFACE
    7.
    发明申请
    USB POWER DELIVERY INTERFACE 有权

    公开(公告)号：US20240402778A1

    公开(公告)日：2024-12-05

    申请号：US18798023

    申请日：2024-08-08

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin ,  Nathalie Ballot

    IPC: G06F1/26 ,  G06F13/40

    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 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.

    Mains monitoring
    8.
    发明授权
    Mains monitoring 有权

    公开(公告)号：US12158483B2

    公开(公告)日：2024-12-03

    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

    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
    9.
    发明申请
    METHOD AND DEVICE FOR DECREASING THE POWER SUPPLY VOLTAGE OF A C-TYPE USB RECEIVER DEVICE SUPPORTING A USB POWER DELIVERY MODE 审中-公开

    公开(公告)号：US20190238052A1

    公开(公告)日：2019-08-01

    申请号：US16379461

    申请日：2019-04-09

    Applicant: STMicroelectronics (Grenoble 2) SAS

    Inventor： Christophe Lorin

    IPC: H02M3/07

    CPC classification number: H02M3/07

    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.

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