Gallery, Projects and General > Project Logs
Oh Blimey I bought a CNC Lathe !!!!
Fred Bloggs:
Opps
As I was typing awemawson commented!!
Fred
lordedmond:
Sorry Fred
guess I worked with 3 phase to much
I will get under my blanket and let Andrew continue with his epic adventure
Stuart
awemawson:
And it seems I was wrong - it's 200v 3 phase running around so the input will be about 340v I suppose. Just has a quick look again and the input from two of the phases goes through the usual common mode rejection filter, a 3.2 amp fuse (which is ok) to the bridge rectifier and across the large electrolytic capacitor. There then sadly is a custom hybrid thick film potted circuit so the actual functions gets hazy, but there is a 2SK847 power fet in series with one winding that I presume is the excitation for the transformer. I've dug out my ancient open frame variac, powered it up and checked that it works but now called back in on dog sitting duty while the wife goes out selling eggs!
John Stevenson:
--- Quote from: awemawson on April 30, 2013, 01:34:22 PM --- but now called back in on dog sitting duty while the wife goes out selling eggs!
--- End quote ---
Jesus H Christ on a push bike.
Tie the damn mutt to the chip conveyor and get on with the damn thing.......................
awemawson:
John, your soft side is :clap: showing again .
Actually she's still totally zonked from the operation (the dog not the wife) so best not left on her own until she comes round poor thing.
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