A switch-mode dc-dc converter is operating at a switching frequency of 20 kHz, and Vd ¼ 150 V. The average current being drawn by the dc motor is 8.0 A. In the equivalent circuit of the dc motor, Ea ¼ 100 V, Ra ¼ 0:25 Ω, and La ¼ 4 mH, all in series.
(a) Plot the output current and calculate the peak-to-peak ripple and
(b) plot the dc-side current.

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor