兆赫兹CRM变换器中实现ZVS与最小化环流的自适应驱动方案

The synchronous rectifier (SR) turn-off time should be accurately controlled to achieve zero voltage switching (ZVS) while minimizing circulating current in pulsewidth modulation converters operating at critical conduction mode. Traditionally, the zero-crossing of the inductor current needs to be detected, and the optimal SR turn-off time is set with reference to the zero-crossing signal. However,...