公开(公告)号：US20240113517A1

公开(公告)日：2024-04-04

申请号：US17956343

申请日：2022-09-29

Applicant: Texas Instruments Incorporated

Inventor： Sahana Sriraj ,  Ralph Braxton Wade, III

IPC: H02H9/02 ,  H03K17/687

CPC classification number: H02H9/02 ,  H03K17/6871

Abstract: A current limiter includes a gain adjustment circuit designed to change the response time (e.g., operation mode) of the current limiter. The current limiter may be designed to operate at different selectable speed modes (e.g., slow mode, fast mode) that affect how quickly the current limiter responds to an overcurrent stimulus. The speed modes may be selected by choosing between different current mirror arrangements in the gain adjustment circuit. Regardless of which mode of operation is selected for the current limiter, a speedup circuit may also be implemented, which includes a switch to initiate a nonlinear speedup of the response time after a certain overcurrent stimulus is received.

公开(公告)号：US10424950B2

公开(公告)日：2019-09-24

申请号：US14855406

申请日：2015-09-16

Applicant: Texas Instruments Incorporated

Inventor： Zhong Chen ,  Ralph Braxton Wade, III ,  Ming Xiao

IPC: H02J7/00 ,  H01L27/02 ,  H02H9/04

Abstract: USB interface and charging port controller integrated circuits and systems are presented for interfacing USB power and data signaling with a host circuit, in which an ESD protection diode is integrated in the IC, having an anode connected to a data terminal of the IC and a cathode connected to the positive USB bus voltage terminal for directing ESD transient current from the data terminal to the USB bus voltage terminal for dissipation to an external bus capacitance connected between the USB bus voltage terminal and a USB ground node on a host system circuit board.

公开(公告)号：US11973499B1

公开(公告)日：2024-04-30

申请号：US18059764

申请日：2022-11-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters ,  Roland Son ,  Sualp Aras ,  Ralph Braxton Wade, III

IPC: H03K19/0185 ,  G01R19/10

CPC classification number: H03K19/018592 ,  G01R19/10 ,  H03K19/018507

Abstract: A bidirectional level shifter circuit includes first and second driver circuits, first and second comparators, and a control circuit. The first driver circuit includes a first driver output and a first enable input. The second driver circuit includes a second driver output and a second enable input. The first comparator includes a first comparator output, a first reference input, and a first comparator input that is coupled to the second driver output. The second comparator includes a second comparator output, a second reference input, and a second comparator input is coupled to the first driver output. The control circuit includes a first control input coupled to the first comparator output, a second control input coupled to the second comparator output, a first control output coupled to the first enable input, and a second control output coupled to the second enable input.

公开(公告)号：US20160336741A1

公开(公告)日：2016-11-17

申请号：US14855406

申请日：2015-09-16

Applicant: Texas Instruments Incorporated

Inventor： Zhong Chen ,  Ralph Braxton Wade, III ,  Ming Xiao

IPC: H02H9/04 ,  H02J7/00

Abstract: USB interface and charging port controller integrated circuits and systems are presented for interfacing USB power and data signaling with a host circuit, in which an ESD protection diode is integrated in the IC, having an anode connected to a data terminal of the IC and a cathode connected to the positive USB bus voltage terminal for directing ESD transient current from the data terminal to the USB bus voltage terminal for dissipation to an external bus capacitance connected between the USB bus voltage terminal and a USB ground node on a host system circuit board.

Abstract translation: 提供USB接口和充电端口控制器集成电路和系统，用于将USB电源和数据信号与主机电路进行接口，其中ESD保护二极管集成在IC中，阳极连接到IC的数据端子和阴极 连接到正极USB总线电压端子，用于将ESD瞬态电流从数据端子引导到USB总线电压端子，以耗散到连接在主机系统电路板上的USB总线电压端子和USB接地节点之间的外部总线电容。