[sdiy] dissipator for power supply

[Tim Johnson]

How is the wattage of the transformer determined?
Trying to build a 20 amp supply I did an experiment and my
very large transformer would deliver 20 amps but got
just a littly to warm to touch after one hour.

Jim

>From: ASSI <Stromeko at compuserve.de>
>To: synth-diy at dropmix.xs4all.nl
>Subject: Re: [sdiy] dissipator for power supply
>Date: Tue, 3 Aug 2004 21:13:50 +0200
>
>On Montag, 2. August 2004 22:37, Linium wrote:
> > Why do you say that the rectified will be 1.4142 time 18V or 25V ?
>
>Transformers are normally rated for rms voltage and rectifying that will
>give a peak of sqrt(2)*V_rated. At maximum output this voltage is quite
>a bit lower, depending on the voltage sag of the transformer and
>conduction angle of the recifier.
>
>
>Achim.
>--
>+<[Q+ Matrix-12 WAVE#46 microQkb/Omega Andromeda XTk/30 sonic heaven]>+
>
>SD adaptations for Waldorf Q V3.00R3 and Q+ V3.54R2:
>http://homepages.compuserve.de/Stromeko#WaldorfSDada
>

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