公开(公告)号：US12032036B2

公开(公告)日：2024-07-09

申请号：US17194033

申请日：2021-03-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vishnu Ravinuthula ,  Takao Oshida ,  Geoffrey Grimmer

IPC: H02J7/00 ,  G01R31/36 ,  G01R31/396 ,  H03M1/44

CPC classification number: G01R31/396 ,  G01R31/3648 ,  H02J7/0071 ,  H03M1/44

Abstract: An apparatus comprises a plurality of analog front ends (AFEs) adapted to be coupled to a plurality of battery cells and configured to decrease voltages received from the plurality of battery cells to produce a plurality of AFE voltages. The apparatus further comprises at least one analog-to-digital converter (ADC) coupled to the plurality of AFEs and configured to convert the plurality of AFE voltages to a plurality of corresponding digital signals. The apparatus also comprises a plurality of digital channel registers coupled to the at least one ADC and configured to store the plurality of digital signals, and a processor coupled to the at least one ADC and configured to adjust, in a round-robin calculation scheme, the plurality of digital signals based on a plurality of common mode voltage values and a plurality of common mode to differential gain values associated with the plurality of AFEs.

公开(公告)号：US11353512B2

公开(公告)日：2022-06-07

申请号：US17071195

申请日：2020-10-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Takao Oshida ,  Bryan Andrew Mueller

IPC: H03H17/04 ,  G01R31/36 ,  H03H17/06

Abstract: As one example, a filter apparatus includes an input to receive an electrical input signal. The filter apparatus includes a forward path connected between the input and an output of the filter apparatus. A feedback path is connected to provide feedback to the forward path based on an output signal at the output of the filter apparatus. A filter bypass is configured to provide the input signal directly to the output and to the feedback path for an activation phase of the filter apparatus. Diagnostics may also be performed.

公开(公告)号：US20220187378A1

公开(公告)日：2022-06-16

申请号：US17389415

申请日：2021-07-30

Applicant: Texas Instruments Incorporated

Inventor： Jose Antonio Vieira Formenti ,  Michael Szelong ,  Takao Oshida ,  Tobias Bernhard Fritz ,  Vishnu Ravinuthula

IPC: G01R31/374 ,  H03M1/38 ,  G01R31/3835 ,  G01L1/22

Abstract: An electronic device includes an ADC, a multiplexer, a voltage reference circuit, an analog circuit, and a digital circuit. The ADC has a signal input, a reference input, and an output. The multiplexer has signal inputs and a signal output coupled to the signal input of the ADC. The voltage reference circuit has an output coupled to the reference input of the ADC, a first strain sensor coupled to a first signal input of the multiplexer, a second strain sensor coupled to a second signal input of the multiplexer, and a temperature sensor. The analog circuit has an input coupled to a battery, and an output coupled to a fourth signal input of the multiplexer. The digital circuit is coupled to the output of the ADC and stores correction parameters for correcting a converted battery voltage value from the ADC.

公开(公告)号：US20210025943A1

公开(公告)日：2021-01-28

申请号：US17071195

申请日：2020-10-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Takao Oshida ,  Bryan Andrew Mueller

IPC: G01R31/36 ,  H03H17/06 ,  H03H17/04

Abstract: As one example, a filter apparatus includes an input to receive an electrical input signal. The filter apparatus includes a forward path connected between the input and an output of the filter apparatus. A feedback path is connected to provide feedback to the forward path based on an output signal at the output of the filter apparatus. A filter bypass is configured to provide the input signal directly to the output and to the feedback path for an activation phase of the filter apparatus. Diagnostics may also be performed.

公开(公告)号：US11536773B2

公开(公告)日：2022-12-27

申请号：US17389415

申请日：2021-07-30

Applicant: Texas Instruments Incorporated

Inventor： Jose Antonio Vieira Formenti ,  Michael Szelong ,  Takao Oshida ,  Tobias Bernhard Fritz ,  Vishnu Ravinuthula

IPC: G01R31/374 ,  G01L1/22 ,  G01R31/3835 ,  H03M1/38

Abstract: An electronic device includes an ADC, a multiplexer, a voltage reference circuit, an analog circuit, and a digital circuit. The ADC has a signal input, a reference input, and an output. The multiplexer has signal inputs and a signal output coupled to the signal input of the ADC. The voltage reference circuit has an output coupled to the reference input of the ADC, a first strain sensor coupled to a first signal input of the multiplexer, a second strain sensor coupled to a second signal input of the multiplexer, and a temperature sensor. The analog circuit has an input coupled to a battery, and an output coupled to a fourth signal input of the multiplexer. The digital circuit is coupled to the output of the ADC and stores correction parameters for correcting a converted battery voltage value from the ADC.

公开(公告)号：US20190383877A1

公开(公告)日：2019-12-19

申请号：US16008965

申请日：2018-06-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Takao Oshida

IPC: G01R31/36 ,  H03H17/04 ,  H03H17/06

Abstract: As one example, a filter apparatus includes an input to receive an electrical input signal. The filter apparatus includes a forward path connected between the input and an output of the filter apparatus. A feedback path is connected to provide feedback to the forward path based on an output signal at the output of the filter apparatus. A filter bypass is configured to provide the input signal directly to the output and to the feedback path for an activation phase of the filter apparatus. Diagnostics may also be performed.