Power management circuit for wireless ubiquitous sensor nodes powered by scavenged energy

  • Kim H
  • Kang S
  • Park K
 et al. 
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Abstract

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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Authors

  • H.S. Kim

  • S.-M. Kang

  • K.-J. Park

  • C.-W. Baek

  • J.-S. Park

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