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Registered Member #5208
Joined: Thu Jun 07 2012, 06:12PM
Location:
Posts: 86
Hello, I'm a newbie to HV and electronics in general :). Anyway, I'm using 11V 200W halogen transformer to drive a flyback and I was wondering if it is possible to increase current output? I would like to build a ZVS but as of now, it's too complicated for me.
Registered Member #5208
Joined: Thu Jun 07 2012, 06:12PM
Location:
Posts: 86
You don't mind if I'll save your ZVS pic? For future reference ;)? I know it's considered simple circuit, but it looks like black magic to me, lol. The coil in the bottom is inductor, yes? It doesn't have to be toroidal?
Registered Member #4104
Joined: Fri Sept 23 2011, 06:54PM
Location: Uk .
Posts: 122
ZVS is failry easy to build , i usally solder stright on Fets , But heat sinks are needed , as head disspation can be high sometimes unless run on low powers as someone said ,
My ZVS heat sink is 1mm x 20mm x 20mm aluminium plate as my max i run my ZVS at is 50 watts in .
I built it this morning. This little one is made mainly for HV and coilgun chargers, but can switch up to 1kW of power (tested) [/quote1339290251]
That's a good little unit you must have used 260's?
This is mine I built it for general HV use its max input is 45v don't know the current draw its controlled by a PWM which is the only thing that gets hot the two small sinks in the fets don't even get warm
Registered Member #4497
Joined: Thu Apr 19 2012, 12:53PM
Location: Behind you
Posts: 62
That's a good little unit you must have used 260's?
I used IRFP250N. But zener diodes in this ZVS are probably too weak (lol 5W :D), they can't handle voltage peaks and ZVS is now dead :D i will put there some neon glows, it will help :)
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SMPS Flyback question
