公开(公告)号：US20220382304A1

公开(公告)日：2022-12-01

申请号：US17395680

申请日：2021-08-06

Applicant: Texas Instruments Incorporated

Inventor： Ryan Wade Selby ,  Shobha Subramanian ,  Hussain Attarwala ,  Keith Eric Sanborn ,  Mihail Gurevitch

IPC: G05D23/20 ,  H05B3/00 ,  H05B1/02 ,  G05D22/02

Abstract: Various examples are provided of low power, rapid response on-device heaters and methods of calibrating the device within a linear operating region, which is reached and maintained through control of the on-device heater. A system to be calibrated includes a sensor to measure the temperature and relative humidity of the system, a heater coupled to the sensor, a heater controller coupled to the heater to control the heater to heat the system, and a processor coupled to the sensor and the heater controller. The processor controls the heater based on temperature measured by the sensor to perform a calibration process for the system including calculating a calibration factor, and to determine whether to abort the calibration process based on relative humidity measured by the sensor indicating that the system is outside the linear operating region.