Question

Consider an ideal down converter supplying load resistance of 80 Ω from a voltage source rated...

Consider an ideal down converter supplying load resistance of 80 Ω from a voltage source rated 9 V and 250 mA. The converter operates at 70-kHz and is designed for 5% voltage ripple and 10% current ripple with a duty time of 60%.

A) Calculate the output voltage, the output voltage ripple, output current and output current ripple.

B) Calculate the cycle period, ton and toff

C) Calculate the required inductance and capacitance values

D) Calculate the output voltage as functions of time

E) Graph the ideal output voltage and inductor current waveforms

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