Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 4904-4911 |
| Number of pages | 8 |
| Journal | IEEE Sensors Journal |
| Volume | 13 |
| Issue number | 12 |
| Publication status | Published - 15 Aug 2013 |
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Keywords
- energy harvesting
- voltage doubler
- cockcroft-walton
- magnetic field
- inductive harvesting
- wireless sensor networks
- DC-DC power convertors
- circuit optimisation
- impedance matching
- low-power electronics
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Optimization of voltage doublers for energy harvesting applications. / Roscoe, Nina; Judd, Martin.
In: IEEE Sensors Journal, Vol. 13, No. 12, 15.08.2013, p. 4904-4911.Research output: Contribution to journal › Article
TY - JOUR
T1 - Optimization of voltage doublers for energy harvesting applications
AU - Roscoe, Nina
AU - Judd, Martin
PY - 2013/8/15
Y1 - 2013/8/15
N2 - Energy harvesting is increasingly enabling the expansion of wireless sensor networks in challenging applications by replacing batteries in low power sensors. Many forms of energy harvester suffer from low output voltage which can be partially compensated for by the use of a Cockcroft-Walton voltage doubler ahead of a dc-dc converter. Impedance matching of energy harvesters is critical to achieving high output power per unit volume. This paper explores optimum impedance match for an energy harvester with a voltage doubler and dc-dc converter. Formulae are derived, and experimentally confirmed, which calculate optimum impedance match between the harvester and a load, and calculate voltage at the input to the dc-dc converter for a given wireless sensor power consumption. Further, the formula for optimum impedance match is validated against independently published results.
AB - Energy harvesting is increasingly enabling the expansion of wireless sensor networks in challenging applications by replacing batteries in low power sensors. Many forms of energy harvester suffer from low output voltage which can be partially compensated for by the use of a Cockcroft-Walton voltage doubler ahead of a dc-dc converter. Impedance matching of energy harvesters is critical to achieving high output power per unit volume. This paper explores optimum impedance match for an energy harvester with a voltage doubler and dc-dc converter. Formulae are derived, and experimentally confirmed, which calculate optimum impedance match between the harvester and a load, and calculate voltage at the input to the dc-dc converter for a given wireless sensor power consumption. Further, the formula for optimum impedance match is validated against independently published results.
KW - energy harvesting
KW - voltage doubler
KW - cockcroft-walton
KW - magnetic field
KW - inductive harvesting
KW - wireless sensor networks
KW - DC-DC power convertors
KW - circuit optimisation
KW - impedance matching
KW - low-power electronics
M3 - Article
VL - 13
SP - 4904
EP - 4911
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
SN - 1530-437X
IS - 12
ER -