Re: gEDA-user: [OFF] high current amplifier

[Bert Timmerman <bert.timmerman@xxxxxxxxx>]

Hi Levente,

On Wed, 2009-05-20 at 22:02 +0200, Levente Kovacs wrote:
> 
> We want to avoid transformers. The older version of this equippment had the
> good old Quad-405 power amplifiers, and transformers at the end. It is so
> heave, that one man can hardly lift the unit.
> 
> Btw... the same unit must also provide a voltage output up to 300V, but only
> 100Watts. For that, we'll go for transformer.
> 
> And a plus... multiply everything by 3, hence it must be 3 phase...
> 
> :-)
> 
> On Wed, 20 May 2009 11:27:48 -0500
> Mark Rages <markrages-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx> wrote:
> 
> > On Wed, May 20, 2009 at 11:16 AM, Levente Kovacs
> > <leventelist-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx> wrote:
> > > On Wed, 20 May 2009 10:48:53 -0500
> > > Mark Rages <markrages-Re5JQEeQqe8AvxtiuMwx3w@xxxxxxxxxxxxxxxx>
> > > wrote:
> > >
> > >> What kind of transient are you trying to simulate?  Maybe it would
> > >> be easier to make a circuit to add the transient to mains power,
> > >> instead of recreating mains power with an amplifier.
> > >
> > > 230V times 100A is something I dont want to even calculate.
> > >
> > > --
> > 
> > You need a high-current, low-voltage transformer:

Being a mechanical oriented guy, electric arc welding comes to mind.

Very rugged equipment, being able to withstand rough handling in worst
conditions possible.

Also available with low voltage (50 V) between electrode and mass
connector for electric conductive areas like large steel vessels and
equipment.

Kind regards,

Bert Timmerman.


> > 
> > http://www.cooperhandtools.com/brands/CF_Files/model_detail.cfm?upc=037103079480
> > 
> > Regards,
> > Mark
> > markrages@gmail
> > -- 
> > Mark Rages, Engineer
> > Midwest Telecine LLC
> > markrages-oYGxGvcBBqUZk/wT9IbM20EOCMrvLtNR@xxxxxxxxxxxxxxxx
> > 
> > 
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> > 
> 
> 



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