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Fluorescent light energy harvesting using a capacitive touch screen

Fluorescent light energy harvesting using a capacitive touch screen

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This Letter presents a fluorescent light energy harvesting method using a capacitive touch screen to charge a phone battery. The proposed idea utilises additional power circuitry, i.e., AC to DC and DC to DC converters to provide DC power to the load. Fluorescent light used in the experiment had a 29.56-V peak-to-peak voltage at 38 kHz frequency. Experimental measurements show that the fluorescent light energy harvesting system can generate 835 μW of power.

References

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      • 3. Karthik, B.G., Shivaraman, S., Aditya, V.: ‘Wi-Pie: energy harvesting in mobile electronic devices’. 2011 IEEE Global Humanitarian Technology Conf. (GHTC), Seattle, WA, USA, November 2011, pp. 398401.
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      • 4. Klein, H.W.: ‘Noise immunity of touchscreen devices’, Cypress Semiconductor Corp., 2013.
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      • 6. Greinacher, H.: ‘The ionometer and its application to the measurement of radium and Röntgen rays’, Physikal. Zeitsch., 1914, 15, pp. 410415.
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      • 7. Yildiz, F.: ‘Potential ambient energy-harvesting sources and techniques’, J. Technol. Studies, 2009, 35, (1), pp. 4048.
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