in the design of the buck converter we should select the val
in the design of the buck converter we should select the value of the inductor to maintain the CCM operation (continuous conduction mode) and the capacitor value to maintain the ripple voltage 10%.
thanks for your help
Solution
DUTY CYCLE MAX = 9/12= 0.75
DUTY CYCLE MIN = 9/18 = 0.5
we need 2 inductor
2 capacitor 1 switch, 1 diode
induCtor rating =25H
CAPACITOR RATIONG = 15microfarad
diode works unirectly
V = L. di/dt
L = 25 H
i = 36 A
rated power = 20W = V2 /Z
Z =450 ohm
