Exercise Design a buck converter to produce an output voltage of 18 V across resistor. The output voltage ripple must not exceed 0.5 percent. The dc supply is 48 V. Design for continuous inductor current. Specify the duty ratio, the switching frequency, the values of the inductor and capacitor, the peak voltage rating of each device, and the RMS current in the inductor and capacitor. Assume ideal components. Assume the inductor be 25 percent larger than the minimum to ensure that inductor current is continuous.

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