Question 2: In this Buck converter, the output load is changing. Calculate the critical value of the output load $P_o$ below which the converter will enter the discontinuous conduction mode of operation. (Hint: $I_{o,crit} = \frac{1}{2} * i_{L,crit}$)
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In discontinuous conduction mode, the inductor current goes to zero during a portion of the switching cycle. The critical value of the inductor current occurs when it reaches zero. Show more…
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Q2: A buck converter has an input voltage of 50V and output of 25V. The switching frequency is 10KHz The power output is 125W. Determine (a)the duty cycle (b) the value of L to limit the peak inductor current to 6.25A (c) the value of capacitance to limit the output voltage ripple factor to 0.5%
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