Hi everyone I am new to this site seeking help with an inverter I bought online from a Chinese company. After I received the inverter I hooked up a 12V battery and something flashed inside and the thing went dead. I emailed the company and they said send it back, well it would have costs 500 in shipping so I just told them to send me replacement parts. I do understand a little about circuits and electricity but I really am stumped here. I am attaching 3 pictures of the inverter. After opening it, it seems that only one of the mosfets...just learning what that is....This mosfet is RU6099R and under that is 492 AT121. The company sent me mosfet RU6099R, under that is 778 AT128. IS this a problem? What do these letter and numbers mean? There are also very very small resistors next to each mosfet. Using a magnifying glass I was able to see a "100" on the top. Does this mean they are 100μF? If not, what does it mean cause other small ones like it have different numbers. Also when I tested several of the resistors they seemed to give different Ω values so that is confusing. I would take it to a professional to get fixed but one, I haven't been able to locate a repair shop or a school that teaches electronics plus I think it would be fun and a good learning experience for me as I am trying to use them in solar farming and I'm sure I'll have to work on them in the future. My plan is to try and understand every component, check it for its proper unit of measurement with the multimeter and just walk the whole thing down and replace those that are bad and it should work. Sounds easy to me If anyone could help I would surely appreciate it.
John
John
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