Abstract
In this paper, the amalgamation of three input power sources as a charging tool for phones and low power communication devices is presented. The developed system comprises a human powered dynamo, solar panels to harvest energy from the sun and a rechargeable battery supply. A simple switching mechanism is incorporated to switch between respective sources. A common dc-dc regulation circuit adjusts the vacillating input voltages to satisfy phone and communication device charging voltage specification. The multi-source system eliminates the effect of periodic variation and unavailability of any of the input sources in event of a need for emergency device charging and demonstrates the potential to power or charge a phone.
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This work has been supported by FRGS Grant: 203/PELECT/6071291.
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Affam, A., Mohd-Mokhtar, R. (2019). Application of Three Independent Sources to Mobile Phone Charging During Emergencies. In: Zawawi, M., Teoh, S., Abdullah, N., Mohd Sazali, M. (eds) 10th International Conference on Robotics, Vision, Signal Processing and Power Applications. Lecture Notes in Electrical Engineering, vol 547. Springer, Singapore. https://doi.org/10.1007/978-981-13-6447-1_33
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DOI: https://doi.org/10.1007/978-981-13-6447-1_33
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