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  • dew28

    aktív tag

    válasz Forest48 #41 üzenetére

    nyilvanvaloan a paneltol osszeteteletol, es a raeso fenytol is fugg. de kimasolom neked tessek:

    Under the light energy level of the T6 LED Flashlight, the output
    power of the GaAs PV panel is 37.1 mW/cm2. Consider a
    middle size smartphone such as a Lumia 920 which has a
    size of 13cm x 7cm, one may attach a PV panel of 91cm2 to
    the smartphone. By using such a GaAs PV panel, we can
    roughly generate a power output of 3.38W. It is able to fully
    charge a battery of 2000mAH in 2.5 hours (assuming a
    charging voltage of 4.2V). Given that most existing wired
    smartphone chargers typically have a power output ranging
    from 2.5W (0.5A, 5V) to 5W (1A, 5V), these results show
    that it is able to charge a smartphone using a light beam as
    quickly as many wired chargers. If we consider the larger
    smartphones such as Galaxy NoteII which has a size of
    15cm x 8cm, we can generate even more power.

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