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MPaulHolmes · 01-17-2015, 04:43 PM

hahahaha. Holy cow, um... I wouldn't go higher than that. You are right. It must have been the hardware overcurrent coming on in 4th gear. It was set to 600amp per igbt, so at least one of the IGBTs must have gone over 600amp for an instant. I'm really glad I put 3 independent current sensors (one on each IGBT) on your controller, you mad man! LOL. Oh can I please get a video of this?!

MORE STRESS:

Well, they are 600v IGBTs, and a 600v ring capacitor. So, why not bump it up to 350v? hahaha

It is possible to change a resistor so that the hardware overcurrent would come on higher, like 700amp instead of 600, and then maybe you could set the current per IGBT to 600, but I don't know if that would be wise... I mean, they are rated for 600amp. It would be weird if they blew up just because you ran them for a short time at their actual rating. I would be concerned about how much heat the IGBTs would be putting out though. Also, I don't remember what the state of your software is. I need to make a couple changes, and send them to you guys. I've really improved the serial communications on the AC controller, and need to port that over. And I need to send jedsmd the updated code for throttling back based on temperature. I need to send it to you too.

So, just so I'm clear, jedsmd is Hall Effect. Flores is 5k-0, and duncan is 0-5k. haha. I think that's right.

01-17-2015, 04:43 PM	#6983 (permalink)
MPaulHolmes PaulH Join Date: Feb 2008 Location: Maricopa, AZ (sort of. Actually outside of town) Posts: 3,832 Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000 Thanks: 1,362 Thanked 1,202 Times in 765 Posts	hahahaha. Holy cow, um... I wouldn't go higher than that. You are right. It must have been the hardware overcurrent coming on in 4th gear. It was set to 600amp per igbt, so at least one of the IGBTs must have gone over 600amp for an instant. I'm really glad I put 3 independent current sensors (one on each IGBT) on your controller, you mad man! LOL. Oh can I please get a video of this?! MORE STRESS: Well, they are 600v IGBTs, and a 600v ring capacitor. So, why not bump it up to 350v? hahaha It is possible to change a resistor so that the hardware overcurrent would come on higher, like 700amp instead of 600, and then maybe you could set the current per IGBT to 600, but I don't know if that would be wise... I mean, they are rated for 600amp. It would be weird if they blew up just because you ran them for a short time at their actual rating. I would be concerned about how much heat the IGBTs would be putting out though. Also, I don't remember what the state of your software is. I need to make a couple changes, and send them to you guys. I've really improved the serial communications on the AC controller, and need to port that over. And I need to send jedsmd the updated code for throttling back based on temperature. I need to send it to you too. So, just so I'm clear, jedsmd is Hall Effect. Flores is 5k-0, and duncan is 0-5k. haha. I think that's right. __________________ kits and boards Last edited by MPaulHolmes; 01-17-2015 at 11:25 PM..