In a Buck dc-dc converter, L = 25 µH. It is operating in dc steady state under the following conditions. Vin = 42 V, D =
Posted: Sun Jul 03, 2022 12:08 pm
- In A Buck Dc Dc Converter L 25 Uh It Is Operating In Dc Steady State Under The Following Conditions Vin 42 V D 1 (249.79 KiB) Viewed 23 times
In a Buck dc-dc converter, L = 25 µH. It is operating in dc steady state under the following conditions. Vin = 42 V, D = 0.3, Po= 24 W, and fs= 400 kHz. Assume ideal components. 1. Construct this converter, calculate, and draw the waveforms. 2. In this Buck converter, the output load is changing. Calculate the critical value of the output load Po below which the converter will enter the discontinuous conduction mode of operation. 3. Calculate the critical value of the inductance L such that this Buck converter remains in the continuous conduction mode at and above Po = 5 W under all values of the input voltage Vin in a range from 24V to 50 V. 4. In this Buck converter, the input voltage is varying in a range from 24V to 50 V. For each input value, the duty-ratio is adjusted to keep the output voltage constant at its nominal value (with Vin = 40 V and D = 0.3). Calculate the minimum value of the inductance L that will keep the converter in the continuous conduction mode at Po = 5 W. 5. Use Simulation to support your analysis and calculation.