Current in the primary coil of transformers used in rectifier circuits

AI Thread Summary
The current in the primary coil of a transformer in a full wave rectifier can be analyzed using the relationship V(s)I(s) = V(p)I(p), but the applicability depends on whether peak or RMS values are needed. For peak current calculations, the peak voltage should be used, while RMS values are appropriate for other calculations. It's important to note that the average current over one complete cycle of a sine wave is mathematically zero. This means that when considering average values, the sine wave nature of the current must be accounted for. Understanding these distinctions is crucial for accurate transformer current analysis in rectifier circuits.
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Can anyone please clarify if the current in the primary coil of the transformer follows V(s)I(s)=V(p)I(p) when i am trying to figure out the peak, surge and average current through the primary coil of a transformer in a full wave rectifier.

Also, if it does, do I just use the peak voltage or the rms value?
 
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It does and it does not . That depends on what are u trying to calculate.

You can use this relationship to calculate the "peak" voltage / current and R.M.S value , depending on what you need.

One more thing, as long as the average current or voltage is concerned it would mathematically be zero since the Current is a sine wave function . The mean value of such a current over one complete cycle would be zero .
 
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