Various aspects of home brew inverters


Author Message
gigabyte091
Newbie

Joined: 15/10/2018
Location: Croatia
Posts: 17
Posted: 06:23pm 07 Nov 2018      

So today i bought drivers and i have inverter up and running :)

here are some images of driver board





Setup, it's a real mess but hey, it prototype



And waveform, i know it isnt 230V, but im running it at reduced voltage becouse i dont have any capacitors on input and my psu is not happy about that hahaha



At the moment im using 330nF capacitor at transformer output, this is what i had at hand, with 5 uF there was huge backfeed into PSU, and voltmeter go over 60V and shut down everything. So now i have to tune capacitor and maybe choke... The important part is that it is working :) Program im using is 2×sinewave.

Tried softstart and its working perfect, also i tried to reset MCU while inverter is running to se is there any errors but everything is alright