[Amps] HV Switch Mode Power Supplies

[David Kirkby]

Will Matney wrote:
> David,
> 
> You are correct on the regulation. A regular transformer type power supply when designed right will have a regulation somewherre around 11-14%. In the case of the switching supply, it looks like 30-35%. 1000 kV drop over 1 amp is a good bit of sag.
> 
> Best,
> 
> Will

I would have thought that cause serious non-linearity problems on SSB.


Having gone to a switch mode design, I would have thought they used some 
feedback to keep the voltage constant. But it seems not. Given the line 
voltage will probably sag too at 2.5kV, you can rekon on over a kV drop 
in practice.

I assume you mean 1kV sag, or 1000V, and not 1000kV !! Reminds me of a 
lecturer I know who got fed up with the cleaners moving his equipment 
that worked from 12V. So he decided to put a sign on it

"Danger, 1200000 uV"

Apparently nobody touched it any more.

> 
> ----- Original Message -----
> From: "David Kirkby" <david.kirkby at onetel.net>
> To: "amps at contesting.com" <amps at contesting.com>
> Subject: Re: [Amps] HV Switch Mode Power Supplies
> Date: Fri, 24 Jun 2005 00:39:13 +0100
> 
> 
>>Steve Thompson wrote:
>>
>>>Winfried Kriegl wrote:
>>>
>>>
>>>>http://www.wattsunlimited.com
>>>>have a 2500W SMPS. Works fine.
>>>
>>>Looks very nice.
>>
>>But look at the regulation (or lack of).
>>
>>http://wattsunlimited.com/_wsn/page3.html
>>
>>
>>--
>>David Kirkby,
>>G8WRB
>>
>>Please check out http://www.g8wrb.org/
>>of if you live in Essex http://www.southminster-branch-line.org.uk/
>>
>>
>>_______________________________________________
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>>http://lists.contesting.com/mailman/listinfo/amps
> 
> 
> 


-- 
David Kirkby,
G8WRB

Please check out http://www.g8wrb.org/
of if you live in Essex http://www.southminster-branch-line.org.uk/