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

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analog8484 Senior Member Joined: 11/11/2021 Location: United States Posts: 122	Posted: 03:45pm 02 Jun 2023         KeepIS said   What Changed In my system, the R-Loss in the Fuse holder was removed, now DC input voltage only drops to 50V instead of 46v to 47v under high 300A+ current. But appeared to change the Inductance requirements slightly? Strange as some of the noisy loads are only in the 300W to 600w range, the Aircon is in the 2.2kW range. What was the DC voltage drop with the fuse holder?   KeepIS said   Then I remembered that not only did I strip and rebuild the DC input terminal connection plates, I also did the same to the Choke connections, and for good measure I removed and rechecked the connections to the Inverter Power board. That was enough to remove a slight R-Loss (I know because the choke connections are now cold under very high power), the change in R-Loss was enough to slightly change Inductance requirements, also this is likely the same reason for that big sustained power-up load being more subdued now. . Any idea how tight the terminal connections are?  I had similar issues in the past and I finally got a torque wrench to consistently tighten all connections to 6 n-M unless there is specific instructions otherwise.  That definitely helped.