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A dc-dc converter is needed to provide power for a video camera pack from an automobile....

A dc-dc converter is needed to provide power for a video camera pack from an automobile. In normal operation, the car electrical system varies between 10 V and 15 V. The video camera requires an accurate 10.2 V supply for proper operation and battery charging. The power level is 20 W. Isolation is recommended to avoid any issues about ground connections. At this power level, a switching frequency of 200 kHz should be feasible. Draw a circuit that can perform the desired function. What duty ratio range is needed for 10.2 V output? Choose inductor and capacitor values to limit the output ripple to 80 mV peak-to-peak.

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