I've been doing some thinking about wind power again...
I'd like to put a toy airplane propeller on a small DC motor as a generator. I don't expect huge wattage here, but should be enough. Since I'll be getting AC from the motor, should be no problem putting it through a transformer from a disposable camera flash, and get a couple of hundred volts. I'm looking for around 90 volts DC, to charge a very large capacitor (37,000 uf, or up to 15 in parallel). Yes, I know it'll take days or even a week or two, to get that much energy saved up.
The generator's (cheap DC motor) output will vary wildly, based on wind speed, but not sure how well such a tiny transformer meant to run off a single AA will hold up. Definitely don't want to exceed the rating of the capacitor. I have no idea how to confine the AC voltage to a safe range. Regulating the final DC charging the capacitor would be impractical. Trying to keep it cheap and simple, from salvaged parts.
I'd like to put a toy airplane propeller on a small DC motor as a generator. I don't expect huge wattage here, but should be enough. Since I'll be getting AC from the motor, should be no problem putting it through a transformer from a disposable camera flash, and get a couple of hundred volts. I'm looking for around 90 volts DC, to charge a very large capacitor (37,000 uf, or up to 15 in parallel). Yes, I know it'll take days or even a week or two, to get that much energy saved up.
The generator's (cheap DC motor) output will vary wildly, based on wind speed, but not sure how well such a tiny transformer meant to run off a single AA will hold up. Definitely don't want to exceed the rating of the capacitor. I have no idea how to confine the AC voltage to a safe range. Regulating the final DC charging the capacitor would be impractical. Trying to keep it cheap and simple, from salvaged parts.