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ElectricalPower Electronics
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For step-down chopper, Vs is the source voltage, R is the load resistance and &delat; is the duty cycle. The average output voltage and current for this chopper are respectively

A

δ.Vs , δ . (Vs/R)

B

(1-δ) . Vs , (1-δ) . Vs/R

C

Vs/δ , Vs/δR

D

Vs/(1-δ) , Vs/(1-δ)R

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