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Solar Mobile Charger

Solar Mobile Charger



This project aims to make a solar charger circuit using IC LM 317 which is an adjustable voltage regulator. The major two components used are Solar panel and LM317 IC.

Solar panels are simply solar cells lined up together in series and parallel so as get sufficient voltage and are p-n junction semiconductor devices with pure silicon wafer doped with ā€˜nā€™ type phosphorous on the top and ā€˜pā€™ type boron on the base. If the PV cell is placed in the sun, photons of light strike the electrons in the p-n junction and energize them, knocking them free of their atoms. These electrons are attracted to the positive charge in the n-type silicon and repelled by the negative charge in the p-type silicon. Connecting wires across the junction will have a current in them.

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Tags: solar components

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3 Comments

  1. Date: July 19, 2017 at 07:31
    Author: Alone But Happy

    and what is the use of too much larger solar panels 6volt 300 Milli amphere is sufficient for making mobile charger

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