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Everything else / Re: Current limiting device
« on: May 11, 2024, 10:00:51 PM »
I think this is the only practical solution possible.
I think that if you put a resistor in series with the inverter that would consume 200W, that you will draw 1200W from the battery. The inverter will increase input current to get to its 1000W (actually VA) rating (up to its max input current).
You would also lose constantly 200W, not the most efficient solution.
It is maybe possible to build a DC chopper that would limit the input power to 800W, but I don't think you could buy something like that. You would have to design/build it yourself (you would turn a switch (mosfet or something like that) quickly on and off while you constantly measure that you take only 800W from the battery).
Your best bet is to buy a inverter that has the possibilty to limit max output. Sell the unit you have now...
Why do you want to limit the 1000VA unit to 800VA?
I think that if you put a resistor in series with the inverter that would consume 200W, that you will draw 1200W from the battery. The inverter will increase input current to get to its 1000W (actually VA) rating (up to its max input current).
You would also lose constantly 200W, not the most efficient solution.
It is maybe possible to build a DC chopper that would limit the input power to 800W, but I don't think you could buy something like that. You would have to design/build it yourself (you would turn a switch (mosfet or something like that) quickly on and off while you constantly measure that you take only 800W from the battery).
Your best bet is to buy a inverter that has the possibilty to limit max output. Sell the unit you have now...
Why do you want to limit the 1000VA unit to 800VA?