公开(公告)号：US20230237002A1

公开(公告)日：2023-07-27

申请号：US17581202

申请日：2022-01-21

Applicant: Texas Instruments Incorporated

Inventor： Anant Kamath ,  Suzanne M. Vining ,  Rakesh Hariharan ,  Mark Wentroble ,  Christopher Rodrigues ,  Prajwala P

IPC: G06F13/38 ,  G06F13/40

CPC classification number: G06F13/385 ,  G06F13/4068 ,  G06F2213/0042

Abstract: An example apparatus includes: a pullup circuit coupled to a first USB terminal; a first pulldown circuit coupled to the first USB terminal; a second pulldown circuit coupled to a second USB terminal; a third pulldown circuit coupled to a third USB terminal; a fourth pulldown circuit coupled to a fourth USB terminal; a high-speed termination detection circuit including: a current source including a first supply terminal and a second supply terminal, the first supply terminal coupled to the first USB terminal, the second supply terminal coupled to the second USB terminal; a first comparator including a first comparator terminal and a second comparator terminal, the first comparator terminal coupled to the first USB terminal; and a second comparator including a third comparator terminal and a fourth comparator terminal, the third comparator terminal coupled to the second USB terminal; and a controller including a first control terminal and a second control terminal, the first control terminal coupled to the second comparator terminal, the second control terminal coupled to the fourth comparator terminal.

公开(公告)号：US20250139038A1

公开(公告)日：2025-05-01

申请号：US19004860

申请日：2024-12-30

Applicant: Texas Instruments Incorporated

Inventor： Anant Kamath ,  Suzanne M. Vining ,  Rakesh Hariharan ,  Mark Wentroble ,  Christopher Rodrigues ,  Prajwala P

IPC: G06F13/38 ,  G06F13/40

Abstract: An example apparatus includes: a pullup circuit coupled to a first USB terminal; a first pulldown circuit coupled to the first USB terminal; a second pulldown circuit coupled to a second USB terminal; a third pulldown circuit coupled to a third USB terminal; a fourth pulldown circuit coupled to a fourth USB terminal; a high-speed termination detection circuit including: a current source including a first supply terminal and a second supply terminal, the first supply terminal coupled to the first USB terminal, the second supply terminal coupled to the second USB terminal; a first comparator including a first comparator terminal and a second comparator terminal, the first comparator terminal coupled to the first USB terminal; and a second comparator including a third comparator terminal and a fourth comparator terminal, the third comparator terminal coupled to the second USB terminal; and a controller including a first control terminal and a second control terminal, the first control terminal coupled to the second comparator terminal, the second control terminal coupled to the fourth comparator terminal.

公开(公告)号：US12216602B2

公开(公告)日：2025-02-04

申请号：US17581202

申请日：2022-01-21

Applicant: Texas Instruments Incorporated

Inventor： Anant Kamath ,  Suzanne M. Vining ,  Rakesh Hariharan ,  Mark Wentroble ,  Christopher Rodrigues ,  Prajwala P

IPC: G06F13/38 ,  G06F13/40

Abstract: An example apparatus includes: a pullup circuit coupled to a first USB terminal; a first pulldown circuit coupled to the first USB terminal; a second pulldown circuit coupled to a second USB terminal; a third pulldown circuit coupled to a third USB terminal; a fourth pulldown circuit coupled to a fourth USB terminal; a high-speed termination detection circuit including: a current source including a first supply terminal and a second supply terminal, the first supply terminal coupled to the first USB terminal, the second supply terminal coupled to the second USB terminal; a first comparator including a first comparator terminal and a second comparator terminal, the first comparator terminal coupled to the first USB terminal; and a second comparator including a third comparator terminal and a fourth comparator terminal, the third comparator terminal coupled to the second USB terminal; and a controller including a first control terminal and a second control terminal, the first control terminal coupled to the second comparator terminal, the second control terminal coupled to the fourth comparator terminal.