[Amps] Transformer in GLA 1000 B : OK for 2xGI 7 ?

Steve Thompson g8gsq at ic24.net
Tue Oct 5 04:31:28 EDT 2004


On Tuesday 05 October 2004 02:38, craxd wrote:
> Hello,
> Keep in mind that when you use a doubler circuit, you will cut the
> available current in half. The transformer wattage will always stay the
> same. The GLA 1000 runs at about 1100-1200 Vdc with about 400-450 mA
> available. Doubling it will only net you about 200-225 mA at 2200-2400
> Vdc. No matter what, about 500 watts. 
I think you end up with higher peak and RMS currents in the transformer, 
leading to a lot extra heat in there.

I don't have time right now, but the Duncan Amps PSU designer will predict the 
numbers.

Steve


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