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Old 10-05-2010, 04:11 PM   #15 (permalink)
jackbauer
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Your biggest problem with used slightly old igbts is switching speed. That one in your spec is horrendously slow. I run a pair of fuji 1mbi800-u4l parts bought on ebay from a guy in germany. They are pritty slow and old 3rd gen parts but have yet to fail. I run 8khz switching frequency. I would look for a 5th gen part if you can get your hands on one. There is a guy in massachusetts on ebay selling some good parts. I'll try to dig out the details ......
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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