Images: I constructed this simple charge controller for the Micro Wind Turbine Project discussed previously on this Blog.
I constructed this charge controller with a few electronic components from my junk-box. Two simple indicators were added. The green LED starts lighting as soon as the wind turns the turbine. The green LED will light to full capacity/brightness once 12 volts is reached, indicating that current is available from the turbine. A zener fires a transistor, lightning the red LED when the voltage exceeds 12 volts, indicating that the turbine is charging the battery. The regulator clamps the voltage at 15 volts to prevent peaks from frying electronic equipment connected to the battery. Simple straight forward electronics, but yet very effective.
More on this project available HERE.
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