A push-pull dc-dc converter has the following parameters which are operating in CCM: Source voltage is 50 V, ratio of primary to secondary turns is 2, filter inductance value is 60 µH, filter capacitor value is 40 µF, the load resistance is 8 Ω, switching frequency is 150 kHz and switch duty ratio is 0.35. Determine (i) the output voltage, (ii) the maximum and minimum inductor currents, and (iii) the output voltage ripple. For what value of load resistance this converter will operate in discontinuous conduction mode?
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