Due to the increased power attainable within new standards – up to 71 W – the forward topology becomes more attractive than it might have been with the previously specified maximum power of 25.5 W. As a counter to the potential bias towards forward topologies for higher power, new transformer core sizes and technology are becoming available, resulting in increasing power capabilities for the flyback. These developments, and the ever-present march toward better semiconductor devices, warrant a fresh look at the forward vs flyback debate.