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3 KW Inverter 48V DC to 220V AC pure-sine

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sekai

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Hi, I'm trying to build a 3 KW inverter for my solar panels.I found a lot of schematics on the internet but with only 12 V or 24V input.
I need a sort of a ups like overload protection, battery discharge etc.So i would like for someone to show me a proper schematic with these functions.
I have powerware 9210 ups , really smart but at only 1.5KW and its input is 108 V.
Thanks.
 

I wont advice you to power 3000watts with 12v may be 48v will make sence
 

I said that i wanted a 48 V schematic not 12 V.
 

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