(e) redesign the circuit above to achieve an output ripple voltage of 1 % and an inductor current ripple 10 % at the average load current with the same Duty cycle d, frequency, load Resistance, and Vin. Calculate the accepted new L and C.
I need help with question 1 (e).
1. Design a buck converter and a resistive load operating in CCM mode with the following specifications:
(∆V0)/V0= 0.5 %, Vin = 20 V, f =30 kHz, Duty cycle d=0.4, and R =5.33 Ω. Determine
(a) the output voltage and current of the buck converter.
(b) the Critical(minimum) inductance for CCM mode
(c) select L = 600 µH and find the maximum IL,max and the minimum IL,min inductor
currents.
(d) find the capacitor value that corresponds to (∆V0)/V0= 0.5 % for this buck converter
(e) redesign the circuit above to achieve an output ripple voltage of 1 % and an inductor current ripple 10 % at the average load current with the same Duty cycle d, frequency, load Resistance,
and Vin. Calculate the accepted new L and C.
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