Digital integrated circuits: a design perspective
Digital integrated circuits: a design perspective
Vibration-to-electric energy conversion
IEEE Transactions on Very Large Scale Integration (VLSI) Systems - Special issue on low power electronics and design
An environmental energy harvesting framework for sensor networks
Proceedings of the 2003 international symposium on Low power electronics and design
Energy Scavenging for Wireless Sensor Networks: With Special Focus on Vibrations
Energy Scavenging for Wireless Sensor Networks: With Special Focus on Vibrations
Self-timed circuits for energy harvesting AC power supplies
ISLPED '05 Proceedings of the 2005 international symposium on Low power electronics and design
A study of low level vibrations as a power source for wireless sensor nodes
Computer Communications
Energy harvesting photodiodes with integrated 2D diffractive storage capacitance
Proceedings of the 13th international symposium on Low power electronics and design
Integrated approach to energy harvester mixed technology modelling and performance optimisation
Proceedings of the conference on Design, automation and test in Europe
Subthreshold FIR Filter Architecture for Ultra Low Power Applications
Integrated Circuit and System Design. Power and Timing Modeling, Optimization and Simulation
Scaling self-timed systems powered by mechanical vibration energy harvesting
ACM Journal on Emerging Technologies in Computing Systems (JETC)
An automated design flow for vibration-based energy harvester systems
Proceedings of the Conference on Design, Automation and Test in Europe
Integrated solar energy harvesting and storage
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Integrated energy-harvesting photodiodes with diffractive storage capacitance
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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The recent explosion in capability of embedded and portable electronics has not been matched by battery technology. The slow growth of battery energy density has limited device lifetime and added weight and volume. Passive energy harvesting from solar radiation, thermal sources, or mechanical vibration has potentially wide application in wearable and embedded sensors to complement batteries. The amount of energy from harvesting is typically small and highly variable, requiring circuits and architectures which are low power and can scale their power consumption with user requirements and available energy. We describe several circuit techniques for achieving these goals in signal processing applications for wireless sensor network nodes such as using Distributed Arithmetic to implement energy scalable signal processing algorithms. In addition, we propose increasing vibration energy harvesting efficiency by eliminating AC/DC conversion electronics, and have investigated self-timed circuits, power-on-reset circuitry, and memory for energy harvesting AC power supplies. These techniques can also be applied to energy harvesting from other sources. A chip will be fabricated to test the proposed circuits.