2015-03-11 21:16 GMT-03:00 rayj <raymo...@frontiernet.net>: > Thanks for the reply. I'm thinking about building a little one for my > home shop, so I'm interested how they do it in the real world. > > If I understand correctly, you're running DC through the coil, and it > oscillates from 0 amps to 40 amps between at a chosen frequency between > 10-30 kHz. > > I'm surprised it's DC, for some reason I assumed it would be AC. > > Thanks again for the reply. Good luck on the project. >
Hello Ray. Indeed what's circulating through the coil is AC, I just gave you the aproximate voltage that the machine uses on the input of the inverter. The machine uses a IGBT transistors to switch a square wave AC and then feed this to an LC tank to generate a sine wave. I really don't know how much voltage is on the coil but I assume is a little one, because there, the current rises because of the transformation ratio. We didn't built it but we were experimenting with induction heating, and I can tell you the tricky part it's how to design the circuit for fire the IGBTs. There are some very good references on the internet if you want to build a heater that's not that big. This one has a maximum output power of 60 KW. -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
