A Single Switch Non-Isolated Ultra High Step-Up DC-DC Converter with Semiconductors Low Voltage Stress

Non-isolated DC-DC converters are suitable for most of applications. Moreover, isolated converters suffer from electromagnetic interference (EMI), discontinuity of the input current, high voltage stress of semiconductors, and leakage inductances. This study proposes a non-isolated DC-DC converter with ultra-high voltage gain value. Moreover, the input current is continuous, and the input filter capacitor experiences a low current stress. Besides the high voltage gain, the converter switch is lower than the output voltage. Notably, the common ground of input source and load is present. The proposed topology is discussed in both ideal /non-ideal modes. Finally, experimental results are presented. This converter is proposed for high-voltage applications. The output voltage, the input voltage, and the output power are 1440 V, 10 V, and 80 W, respectively.