4. A Buck converter has the following parameters and is operating in CCM: L = 100 uH; C = 700uF; r = 0.10; f = 100 kHz,

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4 A Buck Converter Has The Following Parameters And Is Operating In Ccm L 100 Uh C 700uf R 0 10 F 100 Khz 1 (59.06 KiB) Viewed 55 times

4. A Buck converter has the following parameters and is operating in CCM: L = 100 uH; C = 700uF; r = 0.10; f = 100 kHz, Vin = 30V and P, 36W The duty ratio D is adjusted to regulate the output voltage V. 12V. The Pspice simulation showed that at the crossover frequency fo = 1 kHz, the power stage has |Gpx (5) = 24.66 dB and 2Gps(3), -138" Design the feedback controller for this Buck converter such that the output voltage sensing network in the feedback path has again of kpo = 0.2. The steady state error is required to be zero and the phase margin of the loop transfer function should be 60* at, as high a crossover frequency as possible. kFRO(s) = 0+ Controller (5) dis) Power Stage Pulse- Width Modulator 9.(5) Output Filter *B Gc(8) Gpwm(s) Gps (3) kFB I