[sdiy] dissipator for power supply

[Gergo.Palatinszky at nokia.com]

Hali!

 I've already built a 10A PSU based on siple 723 design ...and under heavy load it is still very "cold"

 The idea is simple a 3055(TIP)(with little heatsink) drive(cascade) two parallel (in your case 3 or 4 are needed) 3055(TO-3)(with big heatsink) to carry the 10A->20A power load (you can use better power tr. than 3055). If you interested in drop me a mail.

br

	Pala

 

 

-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of ext harrybissell
Sent: August 05,2004 23:21
To: Dave Silvester
Cc: synth-diy at dropmix.xs4all.nl
Subject: Re: [sdiy] dissipator for power supply


Dave Silvester wrote:

> On Thursday 05 Aug 2004 12:16, Tim Johnson wrote:
> > 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.
>
> 20 amps!?  Are you building some kind of frickin "Laser" on a "Death Star"...?
>

Or maybe the worlds largest "Doepfer wall 'o Death" ???

H^) harry