Invention Grant
- Patent Title: Temperature sensor circuit for relative thermal sensing
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Application No.: US17706113Application Date: 2022-03-28
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Publication No.: US11781920B2Publication Date: 2023-10-10
- Inventor: Eung Jung Kim , Abidur Rahman
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Ray A. King; Frank D. Cimino
- The original application number of the division: US16395860 2019.04.26
- Main IPC: G01K7/21
- IPC: G01K7/21 ; G01K7/02 ; G01K7/16

Abstract:
An example device includes a first temperature sensor configured to provide a first current signal indicative of a temperature of a first circuit based on a voltage of a first temperature sensing element. The first circuit includes a power switch device and the first temperature sensing element. A second temperature sensor is configured to provide a second current signal indicative of temperature of a second circuit based on a voltage of a second temperature sensing element. The second circuit includes the second temperature sensing element. A trim circuit is configured to trim current in at least one of the first temperature sensor or the second temperature sensor to compensate for mismatch between temperature coefficients of the first and second temperature sensing elements.
Public/Granted literature
- US20220214226A1 TEMPERATURE SENSOR CIRCUIT FOR RELATIVE THERMAL SENSING Public/Granted day:2022-07-07
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