公开(公告)号：US20240337696A1

公开(公告)日：2024-10-10

申请号：US18362243

申请日：2023-07-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yicheng Zhou ,  Xiaodong Li ,  Yuhao Zhao

IPC: G01R31/367 ,  G01R31/388

CPC classification number: G01R31/367 ,  G01R31/388

Abstract: A method comprises recording a first voltage value of a voltage source, recording a second voltage value of the voltage source, and determining a first estimated residual state of charge value (SOCestimated) of the voltage source based on the first voltage value and the second voltage value. The method also comprises determining a factor based on one of the first voltage value and the second voltage value and calculating a residual state of charge value (SOCresidual) of the voltage source based on the first estimated residual state of charge value (SOCestimated) and based on the factor.

公开(公告)号：US20240319280A1

公开(公告)日：2024-09-26

申请号：US18307934

申请日：2023-04-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yicheng Zhou ,  Xiaodong Li ,  Kangcheng Xu

IPC: G01R31/374 ,  G01R31/3842 ,  G01R35/00 ,  H03M1/12

CPC classification number: G01R31/374 ,  G01R31/3842 ,  G01R35/005 ,  H03M1/1245 ,  H02J7/0048

Abstract: Various examples disclosed herein relate to current sensing via current sensing circuitry, and more particularly, to calibrating current sensing circuitry to dynamically detect current ranges across a load. In an example embodiment, a microcontroller unit (MCU) is provided herein that includes a processor and current sensing circuitry coupled to the processor. The current sensing circuitry of the MCU is configured to measure voltages associated with a load. The processor of the MCU is configured to obtain the measured voltages from the current sensing circuitry, identify a temperature drift of the current sensing circuitry that exceeds a threshold value, update parameters with which to determine a current associated with the load based on the temperature drift, and determine the current associated with the load based on the updated parameters and the measured voltages.