variable frequency drive hack

[rmarotta]

I'd like to use batteries to power the DC bus, and modify a small VFD to control a larger HP AC induction motor.
Is there any DIY info available about how to "marry" a small VFD to larger capacity output devices? (ie: IGBTs rated for higher voltage/amperage.)
Any help appreciated.
Regards,
rmarotta

 

[LionelHutz]

Don't forget to wear hearing protection too.

 

[jraef]

This might be a cheaper lesson...

"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
For the best use of Eng-Tips, please click here -> faq731-376