A fixed frequency continuous conduction LCCL series resonant inverter fed high voltage DC-DC converter

This paper presents a continuous conduction mode LCCL series resonant inverter fed high voltage dc-dc converter. The proposed converter is derived by adding an inductor in parallel with a capacitor and another capacitor in series with the leakage inductance of the transformer forming a resonant tank. The proposed converter is capable to reduce the parasitic oscillations where all of the parasitic capacitance and leakage inductances are absorbed by the resonant tank circuit. The proposed topology was simulated using PSPICE software. The obtained results show that proposed converter provide a wide range of output voltage control, low output voltage ripple over the entire range and low current stress at light load compare to the conventional circuit.