Body
SvenNo problem, I will use individual tunable variacs.Just curious what the gang of 3 was used for. I have an even larger type with only two ganged together, that may have been used for theatre lighting board for heavy current light dimming.Hector implied that tuning was difficult"Tuning is a bitch" That moment in time where we dump just the exact full quantity of energy, that may be available for extraction without reflection seems to be the quest.Is it possible to see this event on the oscilloscope in a manner that you can visually monitor as you adjust capacitance? That adjustable pf capacitor I made seems to work at several thousand volts reasonably smoothly. It is very large on a bench and perhaps wire length has to be factored in, so it may be impractical for a useful portable device.Cheers Warren
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On Tue, Feb 6, 2018 at 5:40 AM, [email protected] [EVGRAY]<[email protected]> wrote:
Hello Ole,
I thought so too. At low inductances, the problem does not occur because the energy does not seem to be stored that much. You could increase the load as this reduces the energy that can flow back
I seem to have a time problem, the energy would have to be stored only between so that the discharge capacitor can fall to the cut-off voltage.
You could use free-wheeling diodes directly at the transformer then the current recirculating diodes I think about.
Or you may install on the variacs in parallel capacitors that absorb the energy for a moment. I make a drawing of the Buck plug circuit with any meaningful improvements.
regards
Sven
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