USB Type-C port short protection
    1.
    发明授权

    公开(公告)号:US11784485B2

    公开(公告)日:2023-10-10

    申请号:US17552926

    申请日:2021-12-16

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: H02H3/08 H02H9/02 H02H1/00

    CPC分类号: H02H3/08 H02H1/0007

    摘要: A short circuit protection circuit may comprise a first configuration channel line extending from a first connector, a first resistor connected to the first configuration channel line; a voltage divider connected to a junction point on the first configuration channel line, the voltage divider comprising a second resistor and a thermistor, and a field effect transistor (FET) comprising a source, gate, and drain. The thermistor may be connected to a ground line. The drain of the FET may be connected to the first resistor, the source of the FET may be connected to the ground line, and the gate of the FET may be connected to a second junction point between the second resistor and thermistor of the voltage divider.

    Wireless charger with adaptive alignment assistance

    公开(公告)号:US11070098B2

    公开(公告)日:2021-07-20

    申请号:US16248931

    申请日:2019-01-16

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    摘要: In some implementations, a wireless charger includes a power transmission coil, a magnet sensor, an electromagnet, and control circuitry. The power transmission coil can wirelessly provide power at a charging area of the wireless charger through inductive coupling. The magnet sensor is arranged to detect the presence of a magnet at the charging area. The electromagnet can generate a magnetic field in the charging area when the electromagnet is energized. The control circuitry is able to selectively energize the electromagnet based on signals generated using the magnet sensor.

    Magnetic Sensing Device for Lid
    4.
    发明公开

    公开(公告)号:US20230280797A1

    公开(公告)日:2023-09-07

    申请号:US18182950

    申请日:2023-03-13

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: G06F1/16 H02J50/10 G01R33/07

    摘要: The technology provides for a magnetic sensing device. The device includes a magnetic sensor configured to generate a first output triggered by a first polarity and a second output triggered by a second polarity. The device includes a first magnet, a second magnet, and a third magnet. The device may be configured such that, when the second magnet is not within a predetermined distance from the first magnet, a magnetic field from the first magnet having the first polarity causes the first output and the second output to have a first set of values. The device may be configured such that, when the second magnet is within the predetermined distance from the first magnet, a magnetic field from the third magnet having the second polarity causes the first output and the second output to have a second set of values.

    USB Type-C port short protection
    5.
    发明授权

    公开(公告)号:US11233386B2

    公开(公告)日:2022-01-25

    申请号:US16287422

    申请日:2019-02-27

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: H02H3/08 H02H1/00

    摘要: A short circuit protection circuit may comprise a first configuration channel line extending from a first connector, a first resistor connected to the first configuration channel line; a voltage divider connected to a junction point on the first configuration channel line, the voltage divider comprising a second resistor and a thermistor, and a field effect transistor (FET) comprising a source, gate, and drain. The thermistor may be connected to a ground line. The drain of the FET may be connected to the first resistor, the source of the FET may be connected to the ground line, and the gate of the FET may be connected to a second junction point between the second resistor and thermistor of the voltage divider.

    USB Type-C Port Short Protection
    6.
    发明申请

    公开(公告)号:US20200274346A1

    公开(公告)日:2020-08-27

    申请号:US16287422

    申请日:2019-02-27

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: H02H3/08 H02H1/00

    摘要: A short circuit protection circuit may comprise a first configuration channel line extending from a first connector, a first resistor connected to the first configuration channel line; a voltage divider connected to a junction point on the first configuration channel line, the voltage divider comprising a second resistor and a thermistor, and a field effect transistor (FET) comprising a source, gate, and drain. The thermistor may be connected to a ground line. The drain of the FET may be connected to the first resistor, the source of the FET may be connected to the ground line, and the gate of the FET may be connected to a second junction point between the second resistor and thermistor of the voltage divider.

    Magnetic Sensing Device For Lid
    7.
    发明申请

    公开(公告)号:US20200233046A1

    公开(公告)日:2020-07-23

    申请号:US16672741

    申请日:2019-11-04

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: G01R33/07 H02J50/10 H02J7/02

    摘要: The technology provides for a magnetic sensing device. The device includes a magnetic sensor configured to generate a first output triggered by a first polarity and a second output triggered by a second polarity. The device includes a first magnet, a second magnet, and a third magnet. The device may be configured such that, when the second magnet is not within a predetermined distance from the first magnet, a magnetic field from the first magnet having the first polarity causes the first output and the second output to have a first set of values. The device may be configured such that, when the second magnet is within the predetermined distance from the first magnet, a magnetic field from the third magnet having the second polarity causes the first output and the second output to have a second set of values.

    Data over power line design
    9.
    发明授权

    公开(公告)号:US10541726B1

    公开(公告)日:2020-01-21

    申请号:US16025597

    申请日:2018-07-02

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: H02J7/00 H04B3/54 H03K5/24

    摘要: A first device provides both power and data to a second device over a power line connection between the two devices. The first device includes a power line extending from a power supply, a ground line extending from a ground, a first impedance in the power line, and a second impedance in the ground line. A modulator comprised of a transistor and modulator impedance is between the first impedance and the second impedance, and a tank capacitor is between the power line and the ground line, outside the first impedance and second impedance. A comparator is coupled between the first and second impedance. A switch may be included to short out the first and second impedance, thereby enabling transmission of only power for period of time, and return to a mode of transmitting both data and power. The first device may also receive data from the second device over the power line connection.

    Data over power line design
    10.
    发明授权

    公开(公告)号:US11888546B2

    公开(公告)日:2024-01-30

    申请号:US16722963

    申请日:2019-12-20

    申请人: Google LLC

    发明人: Yao Ding Hui Li

    IPC分类号: H04B3/54 H03K5/24

    CPC分类号: H04B3/54 H03K5/24

    摘要: A first device provides both power and data to a second device over a power line connection between the two devices. The first device includes a power line extending from a power supply, a ground line extending from a ground, a first impedance in the power line, and a second impedance in the ground line. A modulator comprised of a transistor and modulator impedance is between the first impedance and the second impedance, and a tank capacitor is between the power line and the ground line, outside the first impedance and second impedance. A comparator is coupled between the first and second impedance. A switch may be included to short out the first and second impedance, thereby enabling transmission of only power for period of time, and return to a mode of transmitting both data and power. The first device may also receive data from the second device over the power line connection.