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Old 08-22-2015, 03:28 PM   #161 (permalink)
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Quote:
Originally Posted by FastEV View Post
Are the IGBT driver boards still available?
thanks for asking
Give me a day to check what I do have available.....

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Old 08-24-2015, 10:23 PM   #162 (permalink)
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After a lot of digging I found some semi-populated IGBT boards and spare parts for the parts kits.
I would have to sorted these and let you know. I'm making preogress
I do not have LVAs modules.
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Old 08-25-2015, 09:18 PM   #163 (permalink)
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I have some new boards that are a different design. They are all unpopulated, but don't depend on the VLA500. I think it's $15 to populate one of the sides rather than $55 for the VLA500 approach (or so). They are surface mount, but BIG surface mount. Not too bad for soldering. They plug right into the IGBT. It can drive very big IGBTs hard just like the regular driver boards. I've tested it with 3Ohm gate resistors on 600v 600Amp IGBTs at 16KHz switching frequency. If anybody wants one of the boards, I'll sell them for $5 each, and I can post a link to the mouser parts list too for populating it. It does require an ATTINY25 that needs to be programmed after (or before) it's soldered into place. I have the code for it, or I could program it for you too. the 2 isolated supplies the board uses have been high pot tested at over 7000volts before they broke down.
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Old 09-09-2015, 09:37 PM   #164 (permalink)
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Hi Paul, I am interested in these boards. Can you post the circuit and parts list please

thank you
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Old 09-10-2015, 12:21 AM   #165 (permalink)
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I can email you the schematic and bill of materials, but I don't know how to post it here.

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