Hi there
I need to build or buy an inverter that transforms 12V DC to 14 AC 50Hz. It's for my guitar sinthetizer, i need to play with it in the street with my 12V batteries. I've tried with an 12V->220AC inverter pure sine (from Velleman) but it introduces to much noise in the guitar.
Any help or ideas I'll be precious.
Thanks,
A. Soares
You'll need a boost converter to get 20V from the 12V supply and an H-bridge to convert it to a modified sine wave.
How much current does it use?
I doubt the inverter you used was a pusre sine wave, it sounds more like a modified sine wave, from what you've said, a pure sine wave inverter shouldn't make any noise.
The method described above might give you the same problem as the inverter you tried.
For a sine wave, it's much more complicated you'll need to convert 12V to 24V (a bit higher than the peak voltage of a 14V sine wave) then use a bridged class D amplifier to get a 50/60Hz sine wave.
Hi there
Kchriste: of course it has the ability to run on alcaline batteries, connecting alcaline batteries in series (+14 and -14Volts) in the printed circuit board ...
Hero999: I think you're right.
Thanks for your help.
I've been with a friend, electronic expert. And he said that the my sinthetizer Boss GR20 has DC after the bridge (+12V and -12V).
I'm going to try this weekend with two batteries connected to the right points in the PCB.
Greetings
Hero999: I think you're right.
Thanks for your help.
I've been with a friend, electronic expert. And he said that the my sinthetizer Boss GR20 has DC after the bridge (+12V and -12V).
I'm going to try this weekend with two batteries connected to the right points in the PCB.
Greetings