Title :
Platform architecture for solar, thermal and vibration energy combining with MPPT and single inductor
Author :
Bandyopadhyay, Saurav ; Chandrakasan, Anantha P.
Author_Institution :
Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
A 0.35μm CMOS energy processor with multiple inputs from solar, thermal and vibration energy sources is presented. Dual-path architecture for energy harvesting is proposed that has up to 13% higher conversion efficiency compared to the conventional two stage storage-regulation architecture. To minimize the cost and form factor, a single inductor has been time shared for all converters. A novel low power maximum power point tracking (MPPT) scheme with 95% tracking efficiency is also introduced.
Keywords :
CMOS integrated circuits; energy harvesting; maximum power point trackers; CMOS energy processor; MPPT; dual-path architecture; energy harvesting; maximum power point tracking; single inductor; size 0.35 mum; solar energy; storage-regulation architecture; thermal energy; vibration energy; Computer architecture; Energy harvesting; Impedance; Inductors; Photovoltaic cells; Switches; Voltage measurement; DC-DC converter; Energy Harvesting; MPPT;
Conference_Titel :
VLSI Circuits (VLSIC), 2011 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-61284-175-5
