Analysis and Design of Controllable Class E Low dv/dt Synchronous Rectifier

Class E synchronous rectifier regulating the output voltage at a fixed switching frequency is presented, analyzed and experimentally verified. This rectifier is derived from a class E low dv/dt rectifier by replacing a rectifier diode with a controlled switch. The rectifier is driven by a sinusoidal current source, and the output voltage is regulated by vary the conduction time of the controlled switch. The ZVS condition of a switch can be maintained from full-load to open-load operation. The experimental results measured at switching frequency 1 MHz were good agreement with the theoretical prediction. .