[SOLVED] 12Vdc to 220Vac 3000W Inverter Full Schematics And Pcb

[tpetar]

If you connect 3000W on small car battery 12V 55Ah, battery will "evaporate from time and space" :smile:

3000W / 12V = 250A but 55Ah can give about (starter bat from better wolrd manufacturers like Bosch) 450-600A in start for few sec, for continuous draining of current /10 will be correct 55Ah/10 = 5,5A max current. If someone put 3000W on 12V bat on longer duration this will skew plates of battery.

Of course this little battery cant produce that huge current longer then from several sec up to one minute.

If there is big 12V bank of batteries then this is possible but instead of wires should use copper pipes with full square.

:smile:


For higher current of inverter higher input voltage is needed, to decrease current and eliminate possible catastrophic event like fire,...

 

[Mr.Cool]

at 250A you will most likely be making use of a large deep cycle battery bank and therefore bus-bar construction within the bank. the main terminal would be like a 3/0 cable or something large. this sort of construction is common in data centers where DC batteries form backup power for UPS.

 

[arbeworks]

3000W inverter. This circuit has some troubles??? you just follow the tracks for C6 and C10 in the PCB... they are "in short" circuit??? doesn`t it?

 

[Mr.Cool]

if you want schematics of true sine wav inverters with PCB layouts available, go search the eBike blogs.

 

[Tipu606]

3000W inverter. This circuit has some troubles??? you just follow the tracks for C6 and C10 in the PCB... they are "in short" circuit??? doesn`t it?

you are right there is short circuit in the track and it is very easy to corect it when you open the pcb in "paint" and erase the short with white brush