Amps
[Top] [All Lists]

Re: [Amps] transformer secondary winding resistance here we go again

To: "Steve Thompson" <g8gsq@qsl.net>, " AMPS" <amps@contesting.com>
Subject: Re: [Amps] transformer secondary winding resistance here we go again
From: R.Measures <r@somis.org>
Date: Wed, 21 Jan 2004 22:41:47 -0800
List-post: <mailto:amps@contesting.com>

>On Tuesday 20 January 2004 18:20, RFlabnotes@aol.com wrote:
>> Chuck:
>>        The key to your statement is "...is capable of handling....",
>> whatever that is supposed to mean. The basic fact is that if the secondary
>> has R ohms of resistance, then with a load of I amperes it is going to
>> produce, at a MINIMUM, a heat loss of I-squared-R watts................
>
>And don't forget it's the rms value of current to use here. With a capacitor 
>input supply, rms current can be several times the dc current so (Irms 
>squared) can easily be 5x (Idc squared).
>
**  Steve -  10x I-dc^2  is more like it with a low ESR and a C-filter.
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>