PEREE Summary of QRC 4 DIsadvantages Voltage stress increased due to the resonant peak Current Rms value increased due to large circulating energy Variable switching frequency due to pulse-frequency modulation(PFM)control 16Power Electron cs i 16 Summary of QRC Summary of QRC Disadvantages Disadvantages – Voltage stress increased due to the resonant peak Voltage stress increased due to the resonant peak – Current RMS value increased due to large Current RMS value increased due to large circulating energy circulating energy – Variable switching frequency due to pulse Variable switching frequency due to pulse -frequency frequency modulation (PFM) control modulation (PFM) control