Solar Panels? - Why PWM Works
Russell McMahon email (remove spam text)
From: Wagner Lipnharski <EARTHLINK.NET> wagnerl
This is historically known as "the maximum power transfer theorum"
>Remember that the best power transfer happens when the
>external (load) impedance is equal to the internal (cell)
>As you can see, when get the max transfered power when
>both impedances are equal. This is applied to sound,
>video, RF, power, pressure, including mechanics.
But is never applied to mains sockets for appliances etc :-)
(for reasons which will be apparent when you think about it).
See also: www.piclist.com/techref/io/pwm/index.htm?key=pwm
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