公开(公告)号：US10054969B2

公开(公告)日：2018-08-21

申请号：US15259368

申请日：2016-09-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anand Subramanian ,  Anand Kannan ,  Sunil Rafeeque ,  Venakatesh Guduri

IPC: G05F1/10 ,  G05F3/02 ,  G05F1/565 ,  G05F1/625 ,  G05F3/16 ,  G05F1/575

CPC classification number: G05F1/575

Abstract: A reference circuit may include a bandgap reference stage, a filter stage, and a buffer stage. The reference stage may be configured to generate a reference voltage or current. The filter stage may be coupled to the reference stage and may be configured to receive the reference voltage or current, filter noise from the reference voltage or current, receive a buffer output voltage or current, and filter noise from the buffer output voltage or current. The buffer stage may be coupled to the filter stage and may be configured to isolate the reference stage and the filter stage from a loading effect of a load circuit and generate a reference signal based on the reference voltage or current to drive the load circuit.

公开(公告)号：US20220350360A1

公开(公告)日：2022-11-03

申请号：US17868684

申请日：2022-07-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Praful Kumar Parakh ,  Anand Kannan ,  Sunil Rafeeque

IPC: G05F3/24

Abstract: A temperature dependent correction circuit includes a first supply source, a second supply source, a rectifying circuit, and a reference. The first supply source is configured to supply a first signal that varies with temperature along a first constant or continuously variable slope. The second supply source is configured to supply a second signal that varies with temperature along a second constant or continuously variable slope. The rectifying circuit is configured to receive the first and second signal, rectify the first signal to produce a first rectified signal, and add the first rectified signal to the second signal to produce a correction signal. The reference is configured to receive the correction signal.

公开(公告)号：US11409317B2

公开(公告)日：2022-08-09

申请号：US15962515

申请日：2018-04-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Praful Kumar Parakh ,  Anand Kannan ,  Sunil Rafeeque

IPC: G05F3/24

Abstract: A temperature dependent correction circuit includes a first supply source, a second supply source, a rectifying circuit, and a reference. The first supply source is configured to supply a first signal that varies with temperature along a first constant or continuously variable slope. The second supply source is configured to supply a second signal that varies with temperature along a second constant or continuously variable slope. The rectifying circuit is configured to receive the first and second signal, rectify the first signal to produce a first rectified signal, and add the first rectified signal to the second signal to produce a correction signal. The reference is configured to receive the correction signal.

公开(公告)号：US09971375B2

公开(公告)日：2018-05-15

申请号：US14949390

申请日：2015-11-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Praful Kumar Parakh ,  Anand Kannan ,  Sunil Rafeeque

IPC: G05F3/24

CPC classification number: G05F3/245

Abstract: A temperature dependent correction circuit includes a first supply source, a second supply source, a rectifying circuit, and a reference. The first supply source is configured to supply a first signal that varies with temperature along a first constant or continuously variable slope. The second supply source is configured to supply a second signal that varies with temperature along a second constant or continuously variable slope. The rectifying circuit is configured to receive the first and second signal, rectify the first signal to produce a first rectified signal, and add the first rectified signal to the second signal to produce a correction signal. The reference is configured to receive the correction signal.

公开(公告)号：US20180239383A1

公开(公告)日：2018-08-23

申请号：US15962515

申请日：2018-04-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Praful Kumar Parakh ,  Anand Kannan ,  Sunil Rafeeque

IPC: G05F3/24

CPC classification number: G05F3/245

Abstract: A temperature dependent correction circuit includes a first supply source, a second supply source, a rectifying circuit, and a reference. The first supply source is configured to supply a first signal that varies with temperature along a first constant or continuously variable slope. The second supply source is configured to supply a second signal that varies with temperature along a second constant or continuously variable slope. The rectifying circuit is configured to receive the first and second signal, rectify the first signal to produce a first rectified signal, and add the first rectified signal to the second signal to produce a correction signal. The reference is configured to receive the correction signal.