A Nonisolated Ultrahigh Step Down DC–DC Converter with Low Voltage Stress

In this paper, a new nonisolated interleaved dc-dc converter with ultrahigh step down conversion ratio is proposed. The proposed converter has several main advantages such as extremely low voltage gain, extended duty cycle, automatic current sharing, low voltage and current stress on active switches, and low output current ripple. To achieve these advantages, several techniques are combined. The interleaved method is applied to reduce the...