Question
Prob. "1 The push-pull converter in Figurel has an output voltage Vo-24 V across a resistance R -0.42 (not shown). The on-state voltage drops across each of the transistors and diodes are V-1.2 V and Va-0.7 V, respectively. The turns ratio of the transformer is a= N/N 0.5. Neglect the losses in the transformer, and the ripple currents of the load and input supply are negligible. • Determine: (a) The average input current I, (b) The efficiency, 17 The average transistor current I (d) The peak transistor current Ip (e) The rms transistor current IR (f) The open-circuit transistor voltage Voc de-ac V₁ N₂ ac-de Prob. #2 Q Figure 1-Push-pull converter
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