A buck-boost converter has an input voltage V_in= 10 V,
switching frequency fs= 100 kHz, duty ratio d= 30%, load resistance
R_L= 20Ω, inductance =100 μH, and
capacitance= 680 μF.
1) Calculate the following values, and include units in your
answers:
a) Peak-to-peak current ripple through the inductor, Δ_iL
b) Average inductor current that will cause the converter to
enter DCM
b) Load resistance that will cause the converter to enter DCM
(R_crit)
d) Average voltage across the inductor insteady-state