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1、The simulation results of Cuk-PFCAug.30,2002The specification:1,Input voltage 220Vac,50Hz2.The output voltage 140VDC3.Load:RL=40Ohms4.Per=10us,d=0.3The circuit of Cuk-PFC Per=10us,PW=3usThe results of simulation(1)Input currentInput voltageOutput voltageThe results of simulation(2)The voltage of C25
2、00vThe input voltage The voltage stress of s 500vThe peak point of input voltage is not as same point as the voltage through C2,so the voltage stress is less the Vin+VOThe results of simulation(3)The input inductor is on DCMThe output inductor is on DCMThe current through the switchThe results of simulation(4)Driving signalThe voltage across the switch The voltage across the diode The results of simulation(5)The driving signalThe voltage across the switchThe current through the switchThe switch and diode are the hard switch