Voltage multiplier-based continuous conduction LCCL series resonant inverter fed high voltage DC-DC converter

The high voltage inverter-fed SR dc-dc converter with conventional design surly provides negligible switching losses, but when operated at light loads, contain ripples at the output voltage and end up with poor performance. So in turn, the applications which require wide range of output voltage variation are expressed relatively less suitable for this design. In order to cop up with these limitations this paper proposes a LCCL series resonant continuous conduction high voltage inverter fed dc-dc converter. A fourth order resonant tank has been proposed in this paper, designed simply by a parallel combination of an inductor and a capacitor, adjoining a capacitor in series combination to the leakage inductance of the transformer. Moreover, the parasitic capacitances and inductances of the circuit are incorporated within the resonant tank, therefore; the proposed converter lacks the parasitic oscillations. PSPICE software has been used to simulate the proposed system. Results reveal that the proposed converter gains an upper hand over the conventional series resonant converter as low output voltage ripple over the entire range, wide range of output voltage control and low current stress at light load are offered by the proposed system.