Sunday, April 01, 2012

>Save energy use solar charger<<

¤Circuit diagram of
the solar charger¤

... Use an adjustable
voltage regulator LM317 to
design the charging circuit.
The BC548 provides
automatic cutoff to solar
charger by regulating the adjustment on the LM317
adjustable voltage

The 0.5 ohm, 5W resistor is
important to dissipate
extra power. The 1000uF
and 0.22uF capacitors in
the left side of the circuit
ensure improved input transient response. The
0.22uF cap along with the
100 ohm resistor.

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