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I have created a theoretical coil of

170 turns*.4871 Tesla's*.0045m^2/.06 seconds=6.21V (Faraday of course.)

ohm's of the coil=.405

6.21V/.405ohms=15.33A

The equation I used

-N * curl*B*A/curl*t

N=number of turns; B=Tesla's; A=area of the coil; t=Time; curls cancel out.

(To calculate Time I used 1000 rpm/60=16.666 rps;1 second/16.666 rps=.06 seconds)

(To calculate Tesla's I chose a magnets surface gauss, 4871 and converted to Tesla's; 10,000 gauss=1 Tesla)

Lets say I have 9 coils with 3 phases:

http://www.allaboutcircuits.com/vol_3/chpt_3/4.html#03267.png

How do I calculate the Diodes I will need for the 3 Phase Rectifier? (see above link for schematic.)

If I had more phases will that change what diodes are needed? (see above link for 6 phase schematic.)

What voltage and amperage ratings for diodes?

What reverse voltage ratings for diodes?

Will the voltage drop across the diodes depend on the diodes I choose for the system?

Is a dump load nescessary if I were charging batteries and the batteries were full?

After rectification 111.78Vdc @ 46A. (This does not account for any voltage drop through the rectifier.)

Google seems to return non pertinent info about calculating for diodes.

Would Wolfram Alpha be better in this area?

P.S.

My goal is to understand the generating of Alternating Current and it's conversion to Direct Current.

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# Polyphase rectifier: Calculating the diodes needed.

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