Efficient circuit design for low power energy harvesting
Source abstract
Abstract
We present five circuit topologies for low power energy harvesting. The most efficient circuit uses a variable capacitor as the power source, a DC bias voltage to charge the variable capacitor, two transistors for rectification, and two storage capacitors. Varying the capacitance performs work and results in stored charge in the capacitors. We experimentally measure the storage capacitor voltage and current over time. The circuit efficiency nears 50% at a maximum power of 10 nW. Multiple circuit topologies are simulated and yield efficiencies from 15% to 50%.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Innovative Energy Harvesting Technologies · Energy Harvesting in Wireless Networks · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, University of Arkansas 1 , Fayetteville, Arkansas 72701, USA
Department of Electrical Engineering, University of Arkansas 2 , Fayetteville, Arkansas 72701, USA
Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute 3 , Albany, New York 12203, USA
Funding
Walton Family Foundation
References (32)
Show source-provided references
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