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Unformatted text preview: Spring 2011 EEE472/591–Power Electronics and Power Management Raja Ayyanar Homework #2 Due: Thursday, 2/10/11 Problem 1: (25 points) A buck converter has the following parameters. 100 , 100 (neglect ESR), 100 s L H C F f k H z (a) If the above converter is used in an application where the input voltage varies between 10V to 40V dc and the output is to be regulated at 8V, plot the peak-to-peak inductor ripple current L I as a function of in V . (b) If the above converter is used in an application where the input voltage remains constant at 40 V dc and the output voltage needs to be controlled between 4 V to 36 V dc, plot the peak-to-peak inductor ripple current L I as a function of o V . Problem 2: (25 points) Design a buck converter to meet the following specifications. Assume that the ESR of the capacitor is given by 6 20 10 ESR C , where C is the capacitance in Farads....
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- Spring '11