Wind Powered Battery Charger - Electronic Circuits Projects Diagrams Free

The Mad Professor · 5th July 2006, 09:54 PM

Making the best use of a light breeze that may not provide enough energy to charge a lead acid accumilator by diverting the available charge to low voltage Ni-Cad's. Plus , it also can limit the generator RPM should the need arise.

5th July 2006, 11:04 PM

Sure, as it says voltage is proportional to wind speed and most light breezes won't be able to charge at a high current rate. Why not use the overload resistance to heat water as well, water is great for thermal transfer.

The Mad Professor · 6th July 2006, 05:45 PM

Agreed , rather than dump the heat to atmosphere using it to heat a water (or oil?) reservoir would make sense.

Hero999 · 6th July 2006, 09:22 PM

How about using a switching regulator with a transformer that could output 13.8V with the current limited to 1A from a wide input voltage range, like 5V to 20V?

oldtimer · 24th July 2006, 12:32 AM

A centrifugal device and springs to change the blade angle at different wind speeds I found was the best solution, you can with a bit of cunning increase the blade area at low wind speeds.

nye · 18th October 2006, 06:02 PM

forgive me for my ignorance..but im sorta a newbie..the LM334 is a constant current source right??when buying thecomponent, wht should ask for??jus mention 'LM334"???are all components cheap in this circuit??

18th October 2006, 06:40 PM

yes it is and in the circuit it acts as a current limiter and diode for the NiCad batteries, since the LM334 is limited to 10mA output there would be a better way to recharge 4 nicads but the circuit doesn't need much power so I suppose I'd let that one slide through

rajoverseas · 12th March 2008, 03:54 AM

If power is 100V to 200V : Three Phase Delta : Than how do you charge : 24V 0 40 amps batteries using this technology

rjvh · 12th March 2008, 06:06 AM

if you have 3 phase 100 a 200 volt i assume that you use a normal 3 phase electro motor as generator then you can step it down with a transformer to the prefered voltage (it's AC) and then make the charger for you batteries

this charger will be different as the circuit that is posted in this tread

6th July 2006, 05:45 PM	#3 (permalink)
The Mad Professor Experienced Member Join Date: Mar 2006 Location: Newent England Posts: 194	Agreed , rather than dump the heat to atmosphere using it to heat a water (or oil?) reservoir would make sense. __________________ It may seem like a good idea at the time , but never stir your cold coffee with a soldering iron.

6th July 2006, 09:22 PM	#4 (permalink)
Hero999 Experienced Member Join Date: Apr 2006 Location: England Posts: 6,983	How about using a switching regulator with a transformer that could output 13.8V with the current limited to 1A from a wide input voltage range, like 5V to 20V? __________________ What's so bad about Microsoft? Get Opera it's simply a superb browser.

18th October 2006, 06:02 PM	#6 (permalink)
nye Experienced Member Join Date: Jan 2004 Location: Sri Lanka & Australia Posts: 87	forgive me for my ignorance..but im sorta a newbie..the LM334 is a constant current source right??when buying thecomponent, wht should ask for??jus mention 'LM334"???are all components cheap in this circuit?? __________________ \"electricity is a good slave, but a bad master\"

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5th July 2006, 11:04 PM	#2 (permalink)
Paul Obrien Guest Posts: n/a	Sure, as it says voltage is proportional to wind speed and most light breezes won't be able to charge at a high current rate. Why not use the overload resistance to heat water as well, water is great for thermal transfer.

24th July 2006, 12:32 AM	#5 (permalink)
oldtimer Experienced Member Join Date: Jul 2006 Location: Florida (english ex pat) Posts: 94	A centrifugal device and springs to change the blade angle at different wind speeds I found was the best solution, you can with a bit of cunning increase the blade area at low wind speeds.

18th October 2006, 06:40 PM	#7 (permalink)
Paul Obrien Guest Posts: n/a	yes it is and in the circuit it acts as a current limiter and diode for the NiCad batteries, since the LM334 is limited to 10mA output there would be a better way to recharge 4 nicads but the circuit doesn't need much power so I suppose I'd let that one slide through

12th March 2008, 03:54 AM	#8 (permalink)
rajoverseas New Member Join Date: Feb 2008 Posts: 3	If power is 100V to 200V : Three Phase Delta : Than how do you charge : 24V 0 40 amps batteries using this technology

12th March 2008, 06:06 AM	#9 (permalink)
rjvh Experienced Member Join Date: Dec 2007 Location: cambodia Posts: 320	if you have 3 phase 100 a 200 volt i assume that you use a normal 3 phase electro motor as generator then you can step it down with a transformer to the prefered voltage (it's AC) and then make the charger for you batteries this charger will be different as the circuit that is posted in this tread