DC CONVERTER WITH HIGH EFFICIENCY AND STEP-UP RATIO, CAPABLE OF OBTAINING HIGH POWER CONVERSION EFFICIENCY

摘要

PURPOSE: A DC converter with high efficiency is provided to reduce the reverse recovery loss of a diode in a secondary side of a transformer by forming a current doubler circuit and a voltage doubler circuit on a primary side and a secondary side of the transformer.;CONSTITUTION: A current doubler circuit(100) and an active clamp circuit(150) are arranged on the primary side of a transformer. The current doubler circuit includes two input inductors and a main switch. The active clamp circuit is connected to the current doubler circuit and includes an auxiliary switch and a clamp condenser. The voltage doubler circuit is arranged in the secondary side of the transformer and includes a serial resonance circuit(210) and two diodes.;COPYRIGHT KIPO 2010