公开(公告)号：US12149236B2

公开(公告)日：2024-11-19

申请号：US17827406

申请日：2022-05-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Venkatesh Guduri ,  Ashish Ojha ,  Priyank Anand ,  Richeek Maitra

IPC: H03K17/00 ,  H03K17/30 ,  H03K17/687

Abstract: In an example, a system includes a first transistor and a second transistor, the first transistor and the second transistor configured to provide current to a load. The system also includes a sense transistor coupled to the first transistor, the sense transistor configured to sense a current flowing through the first transistor. The system includes an amplifier coupled to the sense transistor, where the amplifier includes a first input, a second input, and an output. The system also includes pre-bias circuitry coupled to the amplifier, where the pre-bias circuitry is configured to provide a voltage to the first input of the amplifier responsive to the first transistor being off, where the voltage biases the amplifier.

公开(公告)号：US20240329101A1

公开(公告)日：2024-10-03

申请号：US18190963

申请日：2023-03-27

Applicant: Texas Instruments Incorporated

Inventor： Richeek Maitra ,  Ganapathi Shankar

IPC: G01R19/165 ,  G01R19/32

CPC classification number: G01R19/16571 ,  G01R19/16519 ,  G01R19/32

Abstract: An example circuit includes a transistor including a first current terminal, a second current terminal, and a control terminal, the first current terminal of the transistor coupled to a load terminal, the second current terminal of the transistor coupled to a ground; a sense transistor including a first current terminal, a second current terminal, and a control terminal, the second current terminal of the sense transistor coupled to the ground; an amplifier including a first input, a second input, and an output terminal, the second input of the amplifier coupled to the output terminal of the amplifier; and a resistor including a first terminal and a second terminal, the first terminal of the resistor coupled to the output terminal of the amplifier and the control terminal of the transistor, and the second terminal coupled to the control terminal of the sense transistor.