An Ultra-Low Power Fully Integrated Energy Harvester Based on Self-Oscillating Switched-Capacitor Voltage Doubler

@article{Jung2014AnUP,
  title={An Ultra-Low Power Fully Integrated Energy Harvester Based on Self-Oscillating Switched-Capacitor Voltage Doubler},
  author={Wanyeong Jung and Sechang Oh and Suyoung Bang and Yoonmyung Lee and Zhiyoong Foo and Gyouho Kim and Yiqun Zhang and Dennis Sylvester and David Blaauw},
  journal={IEEE Journal of Solid-State Circuits},
  year={2014},
  volume={49},
  pages={2800-2811}
}
This paper presents a fully integrated energy harvester that maintains >35% end-to-end efficiency when harvesting from a 0.84 mm 2 solar cell in low light condition of 260 lux, converting 7 nW input power from 250 mV to 4 V. Newly proposed self-oscillating switched-capacitor (SC) DC-DC voltage doublers are cascaded to form a complete harvester, with configurable overall conversion ratio from 9× to 23×. In each voltage doubler, the oscillator is completely internalized within the SC network… CONTINUE READING
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