Name
Title | ||
|---|---|---|
A 66pW discontinuous switch-capacitor energy harvester for self-sustaining sensor applications |
Abstract | ||
|---|---|---|
We present a discontinuous harvesting approach for switch capacitor DC-DC converters that enables ultra-low power energy harvesting. By slowly accumulating charge on an input capacitor and then transferring it to a battery in burst-mode, switching and leakage losses in the DC-DC converter can be optimally traded-off with the loss due to non-ideal MPPT operation. The harvester uses a 15pW mode controller, an automatic conversion ratio modulator, and a moving sum charge pump for low startup energy upon a mode switch. In 180nm CMOS, the harvester achieves >40% end-to-end efficiency from 113pW to 1.5μW with 66pW minimum input power, marking a >10× improvement over prior ultra-low power harvesters. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1109/VLSIC.2016.7573490 | 2016 IEEE Symposium on VLSI Circuits (VLSI-Circuits) |
Keywords | Field | DocType |
discontinuous switch-capacitor energy harvester,self-sustaining sensor,discontinuous harvesting approach,switch capacitor DC-DC converters,ultra-low power energy harvesting,burst-mode,leakage losses,MPPT operation,automatic conversion ratio modulator,CMOS,power 66 pW,size 180 nm,power 113 muW to 1.5 muW | Control theory,Capacitor,Leakage (electronics),Computer science,Energy harvesting,Maximum power point tracking,Electronic engineering,Converters,CMOS,Charge pump | Conference |
Volume | ISBN | Citations |
2016 | 978-1-5090-0636-6 | 1 |
PageRank | References | Authors |
0.37 | 0 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiao Wu | 1 | 11 | 3.75 |
| Yao Shi | 2 | 23 | 4.92 |
| Supreet Jeloka | 3 | 41 | 6.41 |
| Kuiyuan Yang | 4 | 148 | 20.89 |
| Inhee Lee | 5 | 275 | 33.89 |
| Dennis Sylvester | 6 | 5295 | 535.53 |
| David Blaauw | 7 | 8916 | 823.47 |