Greetings all,
I have a few questions for anyone inclined to advise me. I would like to create a device to take rotational power from a small engine crankshaft (possibly using a DC motor as a generator), and use it to power a small AC brushless motor such as would be in a radio control car. I would also like to charge a battery (7.4V Li-Po or NiMH, or similar) in the circuit as a sort of buffer. So far I'm considering a 500 watt, 16.5V, 40A, 3000KV brushless motor, and about a 3,000mAh battery. Could anyone give me an idea what specifications I should look for in a generator or alternator? It will need to tolerate about 12,000 RPM, or be geared down. Also, what kind of circuitry is needed for the generator to charge the battery properly while still allowing current to go through a speed controller and then to the AC brushless motor. Also, if a DC motor is used as a generator to power another identical motor (to test efficiency or whatever), does the current stay DC, or does it need to be converted back to DC?
Thank you in advance for any advice
I have a few questions for anyone inclined to advise me. I would like to create a device to take rotational power from a small engine crankshaft (possibly using a DC motor as a generator), and use it to power a small AC brushless motor such as would be in a radio control car. I would also like to charge a battery (7.4V Li-Po or NiMH, or similar) in the circuit as a sort of buffer. So far I'm considering a 500 watt, 16.5V, 40A, 3000KV brushless motor, and about a 3,000mAh battery. Could anyone give me an idea what specifications I should look for in a generator or alternator? It will need to tolerate about 12,000 RPM, or be geared down. Also, what kind of circuitry is needed for the generator to charge the battery properly while still allowing current to go through a speed controller and then to the AC brushless motor. Also, if a DC motor is used as a generator to power another identical motor (to test efficiency or whatever), does the current stay DC, or does it need to be converted back to DC?
Thank you in advance for any advice