Quote:
Originally Posted by MPaulHolmes
Here's a first test with a TO-247 mosfet controller.
|
Good progress on your proto-type!
I'll echo the questions I saw posted on the youtube video - Are you thinking of a kit, a or bare board with a BOM to solder onto? If so, I'll take 3
Why? I have 4 SEVCON mosfet-based AC controllers that are in need of repair. ... and the cases are too small for the larger AC control board to fix. But they need brain transplants if I can drive the MOSFETs.
3 of them have kinda strange fault codes - motor temp too high, low bus voltage, encoder faults, etc. The brain transplant should avoid the cold solders, corrosion, and various other possible problems.
The last one is complaining about a power stage problem so it may have actual problems that I can't fix with a brain transplant.
It would be easiest (for me) to have a new driver board and a new control board. I might be able to re-use the driver stages ... but that could be where I am having the issues
I was going to use your larger AC controller. And I blew one set of IGBT's by reversing + and - on the battery back ... newbie mistake! ... and I have not gotten back to the project since.
But ... a controller board that will fit inside the case (or looks like it might) would help a bunch. And driving the existing MOSFETs would also help since they appear to be in good shape, and it makes my mechanical how-do-I-make-it-fit challenges smaller
