RCD clamp PWM forward converter with self driven synchronous rectification

The forward power converter with a dissipative clamp reset network (RCD clamp) is widely used due to its simplicity. In this paper, the efficiency of this topology is increased by means of the incorporation of self driven synchronous rectification. The inclusion in the power stage of several MOSFETs affects the circuit performance. Design guidelines and optimization of this new topology are carried out in this work. A low output voltage (3.3 V) and high power density prototype has been built, featuring very high efficiency (87.5%) at very high switching frequency (700 kHz).<<ETX>>

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