New topologies enhance power-converter efficiency.

The article discusses new topologies capable of improving the efficiency of power converters. The Double Clamp Zero Voltage Switching (dc-ZVS) approach for alternating current/direct current (ac/dc) power conversion is described. It is noted that the Adaptive Cell topology can address the problem of wide input-voltage span in dc-ZVS topology. Combining both topologies reportedly offers advantages in terms of converter efficiency, low-voltage output and using magnetic coupling for isolation.