TY - GEN
T1 - Noise susceptibility of ΔvBE temperature sensors in highly integrated power converters
AU - Murray, Derek
AU - Rinne, Karl
PY - 2014
Y1 - 2014
N2 - This paper introduces the detrimental effects of voltage regulator noise on ΔVBE-based temperature sense circuits. The work began when a significant temperature reporting inaccuracy was observed on a commercial DC-DC power conversion module. In the paper, the observed problem will be discussed, and a Spice model presented which allows the issue to be simulated. The main part of the work, however, concentrates on a comprehensive experimental investigation of the problem. Taking into account the findings of this investigation, it was possible to significantly improve the accuracy of ΔVBE temperature sense circuits even when exposed to high levels of EMI. The paper concludes by offering important design guidelines for both analog and applications engineers when these high-precision temperature sense circuits are used on power conversion circuits.
AB - This paper introduces the detrimental effects of voltage regulator noise on ΔVBE-based temperature sense circuits. The work began when a significant temperature reporting inaccuracy was observed on a commercial DC-DC power conversion module. In the paper, the observed problem will be discussed, and a Spice model presented which allows the issue to be simulated. The main part of the work, however, concentrates on a comprehensive experimental investigation of the problem. Taking into account the findings of this investigation, it was possible to significantly improve the accuracy of ΔVBE temperature sense circuits even when exposed to high levels of EMI. The paper concludes by offering important design guidelines for both analog and applications engineers when these high-precision temperature sense circuits are used on power conversion circuits.
UR - http://www.scopus.com/inward/record.url?scp=84900419939&partnerID=8YFLogxK
U2 - 10.1109/APEC.2014.6803363
DO - 10.1109/APEC.2014.6803363
M3 - Conference contribution
AN - SCOPUS:84900419939
SN - 9781479923250
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 552
EP - 559
BT - APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
Y2 - 16 March 2014 through 20 March 2014
ER -