Inverter building using Wiseguys Power board and the Nano drive board

Author	Message
oreo Senior Member Joined: 11/12/2020 Location: Canada Posts: 138	Posted: 03:24pm 17 Apr 2025         KeepIS said     oreo said   Quick question.  I notice at low loads your inverter PWM is running at ~71%.  How high does it get with a 6kw or larger load? Just has a look at 5.2kW and it's at 79%  - mainly depends on your turns ratio, which likely effects efficiency at some power levels. BTW I had a chance to do Wiseguys efficiency test today @ 3.2kW and it was between 97% and 98%. Thanks!  On some level, the increased duty cycle is a reflection of the inverter efficiency right?  An 8% increase in DC to support 5.2kw seems rather good to me.  I plan on using 2 ~3kw transformers in my build and it will be interesting to see how the duty cycle changes with 1 vs 2 transformers.