[GreenKeys] Rectifier AC amp draw question...

Jim Cooper jim.w2jc at gmail.com
Wed Sep 11 14:39:51 EDT 2019


On 11 Sep 2019 at 13:31, E. wrote:

> LetTMs say I have a rectifier that
> draws 3 amps on the AC side and 1 amp
> on the DC side¦ according to the
> plate.  If I put a big honkinTM
> resistor on the DC side - for a loop
> current.  Will that limit the DC draw
> to below 3 amps on the AC side, or
> will the AC side remain at 3 amps??? 

disregarding the small amount of power 
lost in the transformer, use the 
   Power out = Power in 
formula ...  remember...  
   Power = Volts times Current

Determine the current in the output, 
multiply by the voltage of the output, 
then divide by the voltage of the INPUT 
and you will have the current on the input. 





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