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    DETERMINATION OF VALUES INDICATIVE OF MULTIPLE PASSIVE COMPONENTS CONNECTED TO A DEVICE PIN
    2.
    发明公开
    DETERMINATION OF VALUES INDICATIVE OF MULTIPLE PASSIVE COMPONENTS CONNECTED TO A DEVICE PIN 审中-公开

    公开(公告)号：US20240223082A1

    公开(公告)日：2024-07-04

    申请号：US18150149

    申请日：2023-01-04

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Weibing Jing ,  Lei Chen ,  Bing Liu

    IPC: H02M1/08 ,  H02M3/157 ,  H02M3/158

    CPC classification number: H02M1/08 ,  H02M3/157 ,  H02M3/158

    Abstract: An integrated circuit (IC) includes a pin, a first passive component determination circuit, and a first switch having a first switch control input. The first switch is coupled between the first passive component determination circuit and the pin. The IC further includes a second passive component determination circuit and a second switch having a second switch control input. The second switch is coupled between the second passive component determination circuit and the pin. A logic circuit is coupled to first switch control input and to the second switch control input. The logic circuit is configured to close the first switch and open the second switch and then open the first switch and close the second switch.

    Isolated capacitive power transfer
    3.
    发明授权
    Isolated capacitive power transfer 有权

    公开(公告)号：US10742134B2

    公开(公告)日：2020-08-11

    申请号：US15685007

    申请日：2017-08-24

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Lei Chen ,  Rajarshi Mukhopadhyay ,  Mark W. Morgan ,  Joseph A. Sankman

    IPC: H02M7/217 ,  H02M3/158 ,  H02M3/28 ,  H02M1/12

    Abstract: A method and device for providing isolated power transfer to a low-power load across a capacitor of a series resonance circuit are shown. The method includes comparing an output voltage received via a feedback loop with a desired output voltage. Responsive to determining that the output voltage is not equal to the desired output voltage, the method determines a sub-harmonic order of the resonant frequency of the series resonance circuit to use as a switching frequency and switches the series resonance circuit at substantially the determined subharmonic order of the resonant frequency.

    METHODS AND APPARATUS FOR ISOLATED TRANSMITTERS
    4.
    发明申请
    METHODS AND APPARATUS FOR ISOLATED TRANSMITTERS 有权

    公开(公告)号：US20250112481A1

    公开(公告)日：2025-04-03

    申请号：US18620785

    申请日：2024-03-28

    Applicant: Texas Instruments Incorporated

    Inventor： Lei Chen ,  Vishnu Ravinuthula ,  Siang Tong Tan ,  Chienyu Huang ,  Richard Sterling Broughton

    IPC: H02J7/00 ,  B60L50/60

    Abstract: An example system includes: a first device having a ground plane at a first voltage, a first transmission terminal, and a second transmission terminal; a second device having a ground plane at a second voltage, a first receiver terminal, and a second receiver terminal; wherein the first device is configured to: operate in either a linear mode or a saturation mode based on a magnitude of electromagnetic interference; and during the linear mode or the saturation mode, use the first transmission terminal and second transmission terminal to transmit a differential signal to the second device.

    METHODS AND APPARATUS TO CURRENT LIMIT REGULATOR CIRCUITRY
    6.
    发明申请
    METHODS AND APPARATUS TO CURRENT LIMIT REGULATOR CIRCUITRY 有权

    公开(公告)号：US20240427364A1

    公开(公告)日：2024-12-26

    申请号：US18214422

    申请日：2023-06-26

    Applicant: Texas Instruments Incorporated

    Inventor： Bumkil Lee ,  Lei Chen ,  Chienyu Huang

    IPC: G05F1/565 ,  G05F1/575 ,  G05F1/59

    Abstract: An example apparatus includes: regulator circuitry having a first terminal and a second terminal; current sense circuitry having a first terminal, a second terminal, and a third terminal; the first terminal of the current sense circuitry coupled to the first terminal of the regulator circuitry, the second terminal of the current sense circuitry coupled to the second terminal of the regulator circuitry; and current limit circuitry including: a transistor having a first current terminal, a second current terminal, and a control terminal, the first current terminal coupled to the third terminal of the current sense circuitry, the control terminal coupled to the second terminal of the regulator circuitry; and current source circuitry having a terminal coupled to the second current terminal of the transistor.

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