[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
HV/HF without sparkgaps.
Original poster: "Michal Lukac" <michal.lukac@xxxxxxxxxxxxx>
My problem doesn't relete direct to TC but it has very in common.
I'm building a circuit for HF HV arc starter for welding machine. It
works on the same principle as the TC. HV powersupply, spark gaps,
caps, and the output transformer. One difference is the output
transformer. It has a very low turns count on the primary and the
secondary. about 10 turns prim. and 15 turns sec.(There is a big
current in the sec. winding because this winding is in series with
the torch.) I built one: similar to this:
All the same principle. Output transformer can have ferite core or
not.(two concentric coils.)
It works, but I would like to remove the sparkgaps if it is possible.
I thought, I could connnect the output transformer direct to HF/HV
But it doesn't work.:-(
I created this HV/HF power supply:
http://www.danyk.wz.cz/zdroj_vfe.html and connected it to my output
I used the output transformer with the core from TV FB trans.
A few turns (5) on one side and few (10) on the sec. side. and It doesn't work.
One think I need is to get HV and HF (sparks at least 5mm long). on
the sec. side of the output transformer.
Please could anybody help me please and to show me the right way?
thank You very much for help.