Igbt <-> mosfet

[eccerr0r]

Re: Igbt &lt;-&gt; mosfet

Installed new IGBTs, inverter is now full once more with all G60N100s, crossing fingers...

Problem being tomorrow will be rainy and I won't have enough power to fully test... as if I had full power to begin with. However I need to see if that bigger toroid core would get me more power with that one homemade SMPS...

[eccerr0r]

Re: Igbt &lt;-&gt; mosfet

Sun came out today, so have some power to play with. The new IGBTs seem to be fine though will need to run them a few days (with a more optimized/better SMPS that I have) before declaring victory. One thing I noticed as far as I can tell, with IGBTs restored, the output power factor seems to be a bit higher and it seems to be producing less RF noise. Which kind of makes sense since IGBTs are slower, but still kind of surprising... Will need to monitor it more and really see if it really is better.

[sam_sam_sam]

Re: Igbt &lt;-&gt; mosfet

Sun came out today, so have some power to play with. The new IGBTs seem to be fine though will need to run them a few days (with a more optimized/better SMPS that I have) before declaring victory. One thing I noticed as far as I can tell, with IGBTs restored, the output power factor seems to be a bit higher and it seems to be producing less RF noise. Which kind of makes sense since IGBTs are slower, but still kind of surprising... Will need to monitor it more and really see if it really is better.

If you get this the way you want it to would you consider posting some pictures of your setup I would be interested in seeing what you have

[eccerr0r]

Re: Igbt &lt;-&gt; mosfet

is an off the shelf cheap chinese sh*t (CCS) grid tie inverter really that interesting... only when it explodes perhaps, but just the fuse exploded... just the TO247 igbt's just melted internally.

My custom SMPS for this system is nothing special, just needed something to connect a 1S1P panel parallel to a 2S1P system (because of the CCS grid tie inverter requires 2S and can't deal with 3S1P which would have been ideal, alas it just shuts down when it sees 3S). Of course the 1S1P with the SMPS can generate only half the amperage the 2S1P, but it's still more power to handle...

Technically I could have bucked the 3S to fake a 2S but then I'd need a toroid that could handle even more watts.

I suspect that dealing with solar panels, a bit of waste here and there doesn't show up as much as futzing with Li-ion batteries... but still, would be nice to dump everything towards powering the load instead of heating up toroids and transistors...