Hopefully? Another 48vdc-240vac Toriod Inverter build.

Author	Message
KeepIS Guru Joined: 13/10/2014 Location: Australia Posts: 1625	Posted: 11:05pm 06 Jun 2023         analog8484 said     KeepIS said   7:Any variation in R-LOSS across connections when a 27kW input surge is suddenly pulled through it   . It's a bit surprising that connection R-loss can have enough dynamic changes to have significant effects.  I guess it's another reason to have as few connections as possible. Or have more parallel connections to each high current interface point. Like some of the bigger Inverter builds that have been described in the past, most usually have 3 or 4 parallel connections to the FETS and Heatsinks [if not isolated] and 4 or more to the DC inputs on the boards. 585 Ampere pulses at 100Hz are significant and connections can generates significant noise throughout an inverter, these currents are normally not encountered in the average Home built house hold Inverter. The reason why I spent a lot of time looking at what was really going on in the Inverter at these power levels was to highlight the important areas to give even more focus to then we usually do, and to give the Inverter the best chance of surviving. If you have some idea of what your dealing with you can make an informed decision about how to build it. .