Electronics Letters · 2009 · 14 citations · 4 references
EngineeringElectrical EngineeringEnergy ManagementSensorsWireless CommunicationsBattery TechnologyPower ControlSensor NetworksWireless NetworksWireless Power TransferWireless Sensor NetworksEnergy HarvestingEnergy Harvesting DevicesEnergy Harvesting SystemsPower Management CircuitsPower Management SystemsRf Power ManagementSensor Node DesignSensor Nodes
Presented is a novel power management circuit for wireless sensor nodes that senses and processes a signal, and transmits an RF signal using scavenged energy without battery assistance. Experimental results show that with a single charging, it is possible for the sensor node to be activated by a wakeup pulse and deactivate itself after transmission of the RF signal to a receiver at a distance of 20 m every 5 min for 8 h without external power.
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An AA-Sized Vibration-Based Microgenerator for Wireless Sensors
Steve Yuen, Johnny Lee, Wen J. Li et al. · IEEE Pervasive Computing · 2007 · 63 citations
Engineering, Electrical Engineering, Mechanical Engineering +17