[Amps] PS Theory ?

[rlm]

>Actually in doubler service I think the transformer peak current
>is about four times the DC output current in a capacitor input filter.

9x to 10x is closer to it since the conduction period is c. 1mS per 
half-cycle.

> A transformer should be designed for doubler service.
>
Amen,  Mark  
>
>
>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...
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>> >
>> >  
>> >
>> 
>> 
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>
>
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