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Task 2. Step-up (Boost) dc-dc Converter File: Boost.plecs K Road 카 V_d n f: 50e3 Periodic Average DutyCycle: 0.625 Nominal Values: Va = 9V, D = 0.625, fs = 50kHz, L = 10uH, C = 50F, Rroad=50 Problems: 1. Obtain the v, and i, waveforms with Boost.plecs. 2. At 0.3 ms, increase the output load as a step by connecting another load of resistance 0.5 2. Plot v, and i; waveforms. 3. Comment on the results obtained.
Task 3. Flyback dc-dc Converter File: Flyback.plecs id ID = lo -ਹੁਤ Lm L: 30e-6 Vi N1 N2 C: 1000-6 R_LOAD R: 1 V_d V: 32 n: [12-3) I M DutyCycle: 0.5 Nominal Values: Va = 32V, V. = 4V, D = 0.4, fs = 200kHz, C = 100uF, Road = 11, Transformer: = 4, Magnetizing inductance: Lm = 30pH, neglect the leakage inductances. NE Problems: 1. Obtain waveforms for vi, id and in 2. Plot V, V, and is during a switching transition 3. Calculate the average values of id and ip in step 1 and verify that la vo To va 4. Change the load resistance to 50 Q and repeat steps 1 and 2 after a steady state is reached 5. Comment on the results obtained.
Task 4. Single Transistor Forward de-de Converter File: Forward.plecs id iD1 D1 L: 7.5e-6 N2 ليبيا . V_d V: 50 Lm D2 C C: 100e-6 R_LOAD R: 1 vo N3 E D3 Dutycycle: 0.4 13 I Nominal Values: Va = 50V, V. = 4.5V, D = 0.4, fs = 200kHz, Road = 10, Transformer ratio: = 4,1 = 1, Lm = 100uH, L, = 7.5uH, C = 100uH. N2 Problems: 1. Obtain the waveforms for i, and the voltage input to the output stage (1.c., the voltage across diode D2). 2. Obtain V, V, and iz waveforms. 3. In step 2, show that the average value of Vequals to zero 4. From the results of step 2, verify that tm Ng TsN Where tm is the time interval during which i; flows, and T, is the switching time period. 5. Comment on the results obtained