A High Frequency Active Clamp Forward Converter with Coreless Transformer

In this paper, a highly compact, low power (<10W), high frequency (2 MHz) isolated active clamp forward converter, comprising a coreless Printed Circuit Board-based transformer is proposed. To decrease the size of converter, high switching frequency is considered which lead to decrease in inductor, capacitor and transformer size. Highly switch loss due to hard switching is an important constraint of forward topology to increase frequency. In this paper, the active clamp circuit is added to forwa...