New high power DC-DC converter with loss limited switching and lossless secondary clamp

A new highly compact DC-DC converter employs one resonant "soft" switching pole and one phase-shifted hard switching pole resulting in low loss switching. A nondissipative secondary rectifier clamp improves efficiency. A 128 kW, 25 kHz converter is commercially available. With complete control of all parasitics, scalability to high power levels is achievable.

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