Re: getting 12 volts from a 6 volts generator????

Posted by JMOR on May 01, 2010 at 20:16:01 from (72.181.166.200):

In Reply to: getting 12 volts from a 6 volts generator???? posted by tjdub on May 01, 2010 at 05:56:50:

T_Bone said: (quoted from post at 14:39:23 05/01/10) The output voltage of a gen/Alt is determined by the input field voltage. Most automotive type gen/alt are rated at 1200w @ 2000rpm. You can never exceed the wattage rating while continuous running. So if you raise the voltage output then you have to derate the current output by the same precentage. The number of poles determines the frequency output. 4 poles turns at 1800rpm and 2poles turns at 3600rpm for 60cyles/sec T_Bone

1200w/6v=200amps

1200w/12v=100Amps

I haven't a clue where you got the idea that most automotive generators and alternators are good for 100 & 200amps, but where ever you got it, you need to trash it. Yes, you can find some newer alternators with that kind of capacity, but not a snowballs chance in Hades on that 200a, 6v generator!

Replies:

• Re: getting 12 volts from a 6 volts generator???? T_Bone 22:10:47 05/01/10 (0)

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