Quote:
Originally Posted by adamj12b
A group of us got together and picked up all 28 modules for about $20 a piece in a group. So were working with what we have. lol
These modules will take a little consideration in putting them in parallel because you have to keep them at the same temps. Im planing a copper layer in between the copper and heat sinks to evenly spread the heat.
The nice thing about IGBT's is their high voltage ability. These can handle a battery pack with a nominal voltage of 400V!
-Adam
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So it's a matter of keeping the temp the same on all of the igbt's then. This allows them to flow the same amount of current for each parallel unit. I think I mentioned once that someone told me paralleling igbt's is like trying to get a team of cats to pull in the same direction, conversely a group of mosfets is like a team of Clydesdale horses. It has to be due to temp variations.
I think I'm going to go with the fets because my pack voltage is only 144v. I'm just waiting for Paul to get that SR unit going so I can start my build.
