TY - GEN
T1 - Integrated CMOS DC-DC converter with digital maximum power point tracking for a portable thermophotovoltaic power generator
AU - Pilawa-Podgurski, Robert C.N.
AU - Li, Wei
AU - Celanovic, Ivan
AU - Perreault, David J.
PY - 2011
Y1 - 2011
N2 - This paper presents an integrated maximum power point tracking system for use with a thermophotovoltaic (TPV) portable power generator. The design, implemented in 0.35 μm CMOS technology, consists of a low-power control stage and a dc-dc boost power stage with soft-switching capability. With a nominal input voltage of 1 V, and an output voltage of 4 V, we demonstrate a nominal peak conversion efficiency over 94% (peak efficiency over 95%), at a power level of 300 mW. The control stage uses lossless current sensing together with a custom low-power time-based ADC to minimize control losses. The converter employs a fully integrated digital implementation of a peak power tracking algorithm, and achieves a measured tracking efficiency above 98%. A detailed study of achievable efficiency versus inductor size is presented, with calculated and measured results.
AB - This paper presents an integrated maximum power point tracking system for use with a thermophotovoltaic (TPV) portable power generator. The design, implemented in 0.35 μm CMOS technology, consists of a low-power control stage and a dc-dc boost power stage with soft-switching capability. With a nominal input voltage of 1 V, and an output voltage of 4 V, we demonstrate a nominal peak conversion efficiency over 94% (peak efficiency over 95%), at a power level of 300 mW. The control stage uses lossless current sensing together with a custom low-power time-based ADC to minimize control losses. The converter employs a fully integrated digital implementation of a peak power tracking algorithm, and achieves a measured tracking efficiency above 98%. A detailed study of achievable efficiency versus inductor size is presented, with calculated and measured results.
UR - https://www.scopus.com/pages/publications/81855168322
UR - https://www.scopus.com/pages/publications/81855168322#tab=citedBy
U2 - 10.1109/ECCE.2011.6063769
DO - 10.1109/ECCE.2011.6063769
M3 - Conference contribution
AN - SCOPUS:81855168322
SN - 9781457705427
T3 - IEEE Energy Conversion Congress and Exposition: Energy Conversion Innovation for a Clean Energy Future, ECCE 2011, Proceedings
SP - 197
EP - 204
BT - IEEE Energy Conversion Congress and Exposition
T2 - 3rd Annual IEEE Energy Conversion Congress and Exposition, ECCE 2011
Y2 - 17 September 2011 through 22 September 2011
ER -