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I'm in need of a higher voltage DC controller (120V nominal, ish) and am on a tight budget. Anyone ever done a brain like Lebowski's, but for DC drive? I've seen Paul's DC version of his big inverter and would imagine I could do something similar with an IMA inverter. Same long leads for better current sharing between the IGBT's? Thoughts?
 

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You can buy a Gen 2 Prius inverter for around $150 at most scrapyards.

Then, a quick little board can get you 370 amps per phase, I think upwards of 500v.

https://openinverter.org/forum/viewtopic.php?f=14&t=275

If you can roll your own board:

https://github.com/damienmaguire/Prius-Gen-2-Inverter/tree/master/DC_Controller

I know he got the boards, I don't know if he ever finished testing them.

...

Currently Damien has been too busy to work on it, but, looks like it would work and, for not a lot of money. Everything pre-engineered.

The Prius Inverter also comes with a ~200v to 12v 100A DC-DC converter to run all your car electronics and systems, which in itself pays for the inverter.
 

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Discussion Starter #3
You can buy a Gen 2 Prius inverter for around $150 at most scrapyards.

Then, a quick little board can get you 370 amps per phase, I think upwards of 500v.

https://openinverter.org/forum/viewtopic.php?f=14&t=275

If you can roll your own board:

https://github.com/damienmaguire/Prius-Gen-2-Inverter/tree/master/DC_Controller

I know he got the boards, I don't know if he ever finished testing them.

...

Currently Damien has been too busy to work on it, but, looks like it would work and, for not a lot of money. Everything pre-engineered.

The Prius Inverter also comes with a ~200v to 12v 100A DC-DC converter to run all your car electronics and systems, which in itself pays for the inverter.

Great links, thank you. I actually already have a prius gen 2 inverter, too. And a CMAX inveter. They are a little bulky compared to the IMA, but I'd think the principle is the same for setting them up as DC controllers.
 

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Speak of the devil and who shall appear...

Damien ordered a batch of 10 Prius Gen 2 DC controller boards, and they arrived today. He'll have a testing video of it up soon.

Refresh the link I gave earlier, details there (but, no more than I just said).
 
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