[Amps] PS Theory ?

[Skram, Helge (MED)]

The peak current will depend on capacitors and resistances.
Peak current can be very high. What is important ia average current.
PSU seems simple, but if you have specific requirements for loaded voltage
and ripple it is easy to miss. 
The Duncan PSU designer is recomended. http://www.duncanamps.com/psud2/
Needs you to input data for HV diodes or ignore the diode warning designing
real HV psu's.

73 de LA6MV
Helge



-----Original Message-----
From: wb8jkr at juno.com [mailto:wb8jkr at juno.com]
Sent: 28. august 2003 00:28
To: w8ron at stratos.net
Cc: Amps at contesting.com
Subject: Re: [Amps] PS Theory ?


Actually in doubler service I think the transformer peak current
is about four times the DC output current in a capacitor input filter.
 A transformer should be designed for doubler service.

73,  Mark  WB8JKR


On Tue, 26 Aug 2003 11:38:31 -0400 Ron <w8ron at stratos.net> writes:
> When you feed it to a doubler , the current is not .5 A but .25A.
> 
> THe remainder may be due to CCS and ICAS duty.
> ---
> Ron
> 
> 
> Mike, K8LH wrote:
> 
> >Please excuse the dumb question...  I'm trying to figure out how to
> >determine the power handling capability of transformers (I did take 
> a
> >quick look through the ARRL Handbook last night)...
> >
> >Questions: 
> >
> >How can you determine the power handling capability of a 
> transformer???
> >
> >For example, the secondary on the transformer in my Heath SB-201 is
> >rated at 800 VAC at 0.5 amps...  I would think this transformer 
> would
> >only be good for about 400 watts of power (800 x 0.5) but it seems 
> that
> >if you feed this secondary into a full-wave bridge rectifier and
> >capacitors you would get about 1,000 volts and 0.5 amps under load 
> (500
> >watts), or feed it into a voltage doubler circuit, like that in the
> >SB-201, and you get about 2,000 vdc at 0.5 amps under load (1,000
> >watts)...
> >
> >I'm confused...  What am I missing???  Thanks...
> >_______________________________________________
> >Amps mailing list
> >Amps at contesting.com
> >http://lists.contesting.com/mailman/listinfo/amps
> >
> >
> >  
> >
> 
> 
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
> 


________________________________________________________________
The best thing to hit the internet in years - Juno SpeedBand!
Surf the web up to FIVE TIMES FASTER!
Only $14.95/ month - visit www.juno.com to sign up today!
_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps