johnrev
Member
- Messages
- 225
- Location
- Norfolk, UK
Hi guys, Just a quickie. Can anyone tell me the best way to use a buzzbox transformer as an inductor for a AC to DC conversion please?
I'm making an add-on box for my Oxford oil cooled welder. I have the rectifier and capacitors but not certain how best to add an inductor. I've got a couple of little (130amp) buzz boxes which I don't use so was thinking to use one of the transformers for the inductor.
I assume just ignore the primary and use the secondary in series with O/P lead. Should the primary winding be left O/C? I assume it should so the ripple can't induce any current in the shorted winding.
The question I can't get my head round is the sliding shunt and it's effect (or not) on the inductance of the secondary winding. The shunt is the type that slides between the two windings on the transformer.
Will the shunt position have any effect on the transformer's inductance? If not I can simply remove it or fix it fully inserted to make more space which would be useful. If it does then it might be interesting to try using it to 'tune' the inductance for best DC welding results.
I have a selection of microwave oven transformers but having seen the size of 'proper' DC welder inductors thought the large welding transformer would be a better unit to use?
Thanks for any advice.
John
I'm making an add-on box for my Oxford oil cooled welder. I have the rectifier and capacitors but not certain how best to add an inductor. I've got a couple of little (130amp) buzz boxes which I don't use so was thinking to use one of the transformers for the inductor.
I assume just ignore the primary and use the secondary in series with O/P lead. Should the primary winding be left O/C? I assume it should so the ripple can't induce any current in the shorted winding.
The question I can't get my head round is the sliding shunt and it's effect (or not) on the inductance of the secondary winding. The shunt is the type that slides between the two windings on the transformer.
Will the shunt position have any effect on the transformer's inductance? If not I can simply remove it or fix it fully inserted to make more space which would be useful. If it does then it might be interesting to try using it to 'tune' the inductance for best DC welding results.
I have a selection of microwave oven transformers but having seen the size of 'proper' DC welder inductors thought the large welding transformer would be a better unit to use?
Thanks for any advice.
John