Title :
A digital over-temperature protector for FlexRay systems
Author :
Chen, Chih-Lin ; Lin, Sheng-Chih ; Wang, Chua-Chin ; Juan, Chun-Ying
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
This work presents a digital over-temperature protector for FlexRay systems. A temperature sensor with a negative coefficient with respect to frequency is realized on silicon. A frequency to digital converter (FDC) is used to convert the frequency into a digital code to represent the sensed temperature. An experimental prototype was implemented using a typical 0.35 μm CMOS process. The post-layout-extracted simulation results reveal that the worst error is less than ±6°C at all PVT (Process, voltage, and temperature) corners. Notably, the error is less then ±1.8°C in the range from 0°C to 100°C.
Keywords :
CMOS integrated circuits; automotive electronics; elemental semiconductors; silicon; temperature sensors; CMOS process; FlexRay systems; digital overtemperature protector; frequency to digital converter; post layout extracted simulation; size 0.35 mum; temperature 0 degC to 100 degC; temperature sensor; Delay; Frequency conversion; Frequency measurement; Oscillators; Radiation detectors; Temperature measurement; Temperature sensors; FlexRay system; over-temperature protector; temperature detector; temperature sensor;
Conference_Titel :
Circuits and Systems (ISCAS), 2012 IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0218-0
DOI :
10.1109/ISCAS.2012.6271668
