Wind charge controller - Page 2 - Electronic Circuits Projects Diagrams Free

Boncuk · 13th November 2007, 01:14 AM

Quote:

Since the day lasts for 12 hours it's unlikely it'll become heavilly overcharged.

The wind ignores day time and blows whenever it wants. It usually blows 24 hours per day (worst case). So the chances for overcharging a battery are pretty high.

Helder Ferreira · 13th November 2007, 06:40 PM

You can add more batteries and find a way to use the extra "juice". The difficult part of the job (erecting the generator), you've already done, so, try to find out the efficiency of the system and put it use. A shunt regulator will "waste" "precious" energy by transforming it to heat.

HarveyH42 · 13th November 2007, 09:11 PM

For this one, I want to keep an ATTiny13V running an RGB LED fading program, pretty much continously. The AVR is low voltage, and doesn't draw much current, less than 4mA. The LEDs will be high brightness 20mA. Hoping to get over 100mA out of a small stepper. Going to throw it together while on vacation in another week. I don't think I'll be able to make any measurements when its outside on a pole, but was thinking of hooking up a motor to spin the propeller while its on the bench, but that would mean build some sort of speed control... Probably just put it outside and see what happens.

Boncuk · 14th November 2007, 07:35 AM

Measurements should be quite easy if you happen to have a fan. A 16 inch dia
fan will do.

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13th November 2007, 06:40 PM	(permalink)
Helder Ferreira Experienced Member	You can add more batteries and find a way to use the extra "juice". The difficult part of the job (erecting the generator), you've already done, so, try to find out the efficiency of the system and put it use. A shunt regulator will "waste" "precious" energy by transforming it to heat.

13th November 2007, 09:11 PM	(permalink)
HarveyH42 Experienced Member	For this one, I want to keep an ATTiny13V running an RGB LED fading program, pretty much continously. The AVR is low voltage, and doesn't draw much current, less than 4mA. The LEDs will be high brightness 20mA. Hoping to get over 100mA out of a small stepper. Going to throw it together while on vacation in another week. I don't think I'll be able to make any measurements when its outside on a pole, but was thinking of hooking up a motor to spin the propeller while its on the bench, but that would mean build some sort of speed control... Probably just put it outside and see what happens.

14th November 2007, 07:35 AM	(permalink)
Boncuk Experienced Member	Measurements should be quite easy if you happen to have a fan. A 16 inch dia fan will do.