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Registered Member #1819
Joined: Thu Nov 20 2008, 04:05PM
Location:
Posts: 137
LithiumLord wrote ...
Mobility ;)
Yes; for my own purposes, ALL my capacitor chargers need to portable and run off of 12V lead-acid batteries. Also, in my residence messing with the line current is prohibited except by "qualified" electricians.
I decided that anyone interested in building a portable capacitor charger should know about this transformer.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
How are you gonna limit the current if using forward converter? With TV transformer core its easy, you just wind it on the opposite core leg, but here you'll probably need an external ballasting inductor.
Registered Member #1819
Joined: Thu Nov 20 2008, 04:05PM
Location:
Posts: 137
Dr. Kilovolt wrote ...
How are you gonna limit the current if using forward converter? With TV transformer core its easy, you just wind it on the opposite core leg, but here you'll probably need an external ballasting inductor.
When you say "forward converter" I'm assuming that you are referring to the topology that uses a transformer with a reset winding, instead of the general forward converter definition that covers push-pull converters, half-bridges and full-bridges. However, it sounds like you are talking about a flyback converter, for which this transformer ios completely inapplicable.
This is a bridge / push-pull transformer, not a forward or flyback transformer. Also it is unsuited for ZVS drivers. The current draw on the primary is proportional to the current drawn from the secondary. The only other magnetics required are 1 or 2 inductors to supply current during the current gap when the flux reverses.
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