In this study, a new interleaved zero-current transition pulse-width modulation (PWM) boost converter, which uses
only one auxiliary switch to provide soft-switching condition is presented and analysed. In order to reduce switching losses
and to obtain high efficiency, a non-dissipative soft-switching cell is used. In the proposed interleaved converter, soft
switching is obtained for all semiconductor devices. The main and auxiliary switches turn on and off under zero-current
condition. Thus, the reverse-recovery losses of boost diodes are reduced and also, high efficiency is achieved owing to
reduction of switching losses. Also, implementation of control circuit is simple since the proposed circuit is controlled by
PWM method. Operating principles, theoretical analysis, the design procedure along with a design example are described and
verified experimentally. Experimental results are presented to justify the validity of theoretical analysis.
