I'm looking to build a drive inverter to control the speed of my bandsaw (1-1/4hp with capacitor). Does anyone know of a place where I can get schematics for one? Right now I'm thinking of tinkering with diodes to conver AC to DC, then using a pic controller and an IGBT to creat a frequency altered AC output. I can tinker with it, but I'm an ME, not an EE, and a little help would be greatly appreciated.
What okorder you can find speed motor controllers.Check the name plate for current rating. I am including a couple of links. You could also try to lower the speed with a series inductance but it would have to be special order and will give you only fixed speeds.
Hi. AC motors are designed and built differently than DC motors. AC motors take advantage of the 60 hertz clock of a power line (or 50Hz in other countries) - this means the power line changes phases 60 times a second - to rotate, while DC motors are designed with the voltage level applied. You can control them both, but with different means. The easiest to control is the DC motor (change the potential (the voltage) and it turns slower or faster.
change motor to a 3 phase motor (very cheap) , buy an ac tech drive
