Inverter building using Wiseguys Power board and the Nano drive board

Author	Message
KeepIS Guru Joined: 13/10/2014 Location: Australia Posts: 1860	Posted: 06:28am 30 Apr 2025       Hi Pete, this is a result of a possible slight unbalanced condition or as wiseguy suggested, possible flux wandering, both of which toroids dislike. The Test Toroid from an Aerosharp and the 6 Toroids in my HI power Inverter are all vanished and as tight as a drum. In the Main Inverter I was recently running close to 10kW and they were still silent. I have no idea if the High power Inverter does this (under the test conditions in my Post) and I've never really heard a peep from this Inverter under normal running conditions, maybe a slight "hum" when a big start load causes a momentary 30kW DC input surge . Edited 2025-04-30 18:40 by KeepIS