ZCS-ZVS mixed mode PWM resonant converter for snubber energy recovery of 3-level GTO inverter

In this paper, a new type of PWM series resonant converter is proposed. One pole of the proposed converter is switching at zero-current and the other is switching at zero-voltage. By introducing an auxiliary inductor, zero-voltage switching is possible even at no load. The proposed converter is suitable for a high-voltage DC/DC converter because the voltage stresses of switching devices are minimized.<
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