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In the multi-MHz low voltage, high current applications, Synchronous Rectification (SR) is strongly needed due to the forward recovery and the high conduction loss of the rectifier diodes. This paper applies the SR technique to a 10-MHz isolated class-Φ2 resonant converter and proposes a self-driven level-shifted Resonant Gate Driver (RGD) for the SR FET. The proposed RGD can reduce the average on-state...
Boundary Conduction Mode (BCM) and Discontinuous Conduction Mode (DCM) control strategies are widely used for the flyback micro-inverter. BCM and DCM control strategies are investigated for the interleaved flyback micro-inverter concentrating on the loss analysis under different load condition. These two control strategies have different impact on the loss distribution and thus the efficiency of the...
A new non-isolated ZVS self-driven current tripler topology for high current and low voltage applications is proposed in this paper. The most important advantage of the proposed topology is reduced current stress and conduction losses of the synchronous rectifier (SR) MOSFETs and transformer windings, which is beneficial for high current applications. Other features of the proposed topology are: 1)...
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