公开(公告)号：US20240310432A1

公开(公告)日：2024-09-19

申请号：US18344623

申请日：2023-06-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Gautam Salil NANDI ,  Rajavelu THINAKARAN ,  Hariharan SRINIVASAN

IPC: G01R31/28 ,  G01R19/18 ,  G01R35/00 ,  H03F3/04

CPC classification number: G01R31/2834 ,  G01R19/18 ,  G01R35/005 ,  H03F3/04

Abstract: In some examples, a method of performing measurement of a device under test (DUT) coupled to a connector includes determining a first voltage signal representative of a current of the DUT, the current flowing through the connector. The method also includes determining a second voltage signal representative of a voltage of the DUT, as provided at the connector. The method also includes determining a calibration current according to the first voltage signal. The method also includes modifying measurement of the DUT according to the calibration current.

公开(公告)号：US20240297627A1

公开(公告)日：2024-09-05

申请号：US18362389

申请日：2023-07-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Hariharan SRINIVASAN ,  Rajavelu THINAKARAN

IPC: H03F3/45 ,  G01R31/28 ,  H03F1/56

CPC classification number: H03F3/45475 ,  G01R31/2834 ,  H03F1/56 ,  H03F2200/261 ,  H03F2203/45288

Abstract: In examples, a circuit includes a first and second resistors, a programmable impedance circuit, an amplifier, and a current mirror. The first resistor has a first terminal coupled to a VIN terminal, and a second terminal. The second resistor has a first terminal coupled to the second terminal of the first resistor, and a second terminal coupled to a ground terminal. The programmable impedance circuit has a first terminal coupled to the second terminal of the first resistor, a tuning input, and a third terminal. The amplifier has an inverting input coupled to the ground terminal, a non-inverting input coupled to the third terminal of the programmable impedance circuit, and an output terminal. The current mirror has a first terminal coupled to the output terminal of the amplifier, a second terminal coupled to the third terminal of the programmable impedance circuit, and a third terminal coupled to an IOUT terminal.