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An illumination aware single solar-cell VCO CCO based charge-pump energy harvesting system for SoC integrationPublished in Institute of Electrical and Electronics Engineers Inc.
2017
Pages: 250 - 253
A complete system for single solar-cell fully on-chip micro-scale energy harvesting is proposed. To maximize the extracted output power over the entire illumination range, optimal frequency operation and reconfigurable adaptive switch sizing techniques have been discussed. A fully digital illumination change detection block and a reconfigurable VCO/CCO (Voltage/Current Controlled Oscillator) scheme have been introduced. The proposed system has been designed in UMC 0.18-μm CMOS technology and the techniques used here offer an efficiency improvement up to 10% in both low, high illumination ranges compared to the conventional system and achieve a peak system efficiency of 67%. © 2016 IEEE.
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About the journal
| Journal | Data powered by Typeset2016 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016 |
|---|---|
| Publisher | Data powered by TypesetInstitute of Electrical and Electronics Engineers Inc. |
Authors (1)
Ashudeb Dutta- A 2μW biomedical frontend with ΣΔ ADC for self-powered U-healthcare devices in 0.18μm CMOS technology
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