Wind Charger Using LTC1042

It is very simple electronic circuit project of wind charger circuit using the LTC1042 monolithic CMOS window comparator, manufactured by Linear Technology INC. 

Wind Charger Using LTC1042 Circuit Diagram:

Charger Circuit Diagram
 
This Wind charger circuit electronic project use the wind power to produce the energy required to charge Ni-Cd or Lead Acid batteries. As you can see in the circuit diagram, you will need a 12 volts generator, a dc motor can be used (the output voltage is proportional to its rpm). As you can see in the circuit diagram, are connected two batteries: a 4.5 volts Ni-Cd and a 12 volts Lead Acid battery.

If generator voltage output is below 13.8V, the control circuit is active and the NiCad battery is charging through the LM334 current source (the lead acid battery is not being charged). If the generator voltage output is between 13.8V and 15.1V, the 12V lead acid battery is being charged at about a 1A/hour rate (limited by the power FET).

If generator voltage exceeds 15.1V (a condition caused by excessive wind speed or 12V battery being fully charged) then a fixed load is connected thus limiting the generator RPM to prevent damage.

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