Guru
Joined: 04/10/2019
Location: AustraliaPosts: 671
| Posted: 08:54am 11 Apr 2024 |
What power level do you plan to use this inverter with? The copper dimensions you gave above for the choke winding is a bit on the small side for anything over 4KW, using a 48V battery.
As you seem to have glued the E core halves together, the glue might soften if the choke gets too hot. I would prefer mechanical clamping for this task.
I select the secondary capacitor with the 75Hz resonance test, worked for me. You are right, the no load current is affected by this capacitor value.
Suggest you try those clip on noise suppressors on your AC wiring first and add a fully shielded AC filter for good measure. That should rid your wave form of that tiny oscillation, at least at lower power levels.