Where to buy a DC-to-DC converter, input 12VDC nominal, output 120VDC nominal (actual 145-155V)?

Question

Where to buy a DC-to-DC converter, input 12VDC nominal, output 120VDC nominal (actual 145-155V)?

Hi, I would like to run high-amperate 145-155Vdc devices [nominal voltage] from forty 12Vdc automotive batteries in parallel. Is there a product that does this. The output should be regulated, too.

If this product doesn't exist, how easy would it be to make one?

P.S. A "12V" battery puts out 12.9 volts at 100% state of charge and 12.2 volts at 20% state of charge.

Answer 1

You need to specify the wattage required. High power inverters work better with a higher voltage. For example a 5000 watt inverter is designed to work with 48 volts. So if you have 40 batteries then place groups of 4 in series to get 48 volts.

However I have a 1500 watt inverter that runs off 12 volts.

Answer 2

Perhaps you could build/buy a dc chopper circuit or use a thyristor controlled dc/ac convertor followed by a tranformer and full-wave smoothed rectifier! Sounds fun!

Answer 3

Nirvana

Answer 4

You can get what you're looking for from a Home Depot or a Lowe's store and most electronic stores (Best Buy, Radio Shack, Circuit City, etc).