Hi guys,
I'm newbie on this forum, and looks the right place to solve my problem
I have a magnetic table that use on surface grinder machine but I lost the controller. The table specification 100VDC 0.85A.
I've try to build the circuit using variac transformer and diode bridge just to make a variable DC voltage. But I have a major problem when I put some part on the table for long period, my parts become a strong magnetic. its predictable cos my material characteristics (ferromagnetic material).
That I'd like to ask you, how to demagnetizing table and that parts on my controller? I mean to dump residual magnetic field. What kind of circuit should I build?
Thanks for your kind help and attention
(sorry for my bad english)
Regards,
Andre