CUK Converter pronounced as chook converter is basically DC-DC converter. CUK converter delivers voltage at the output which is either less than or greater than respective voltage at the input as per the requirement of the load. Construction of this converter is such that its BOOST converter followed by BUCK converter. CUK converter can be used for voltage in case of hybrid wind and solar power system. Voltage input to the converter depend upon the intensity of sun radiation as well as the speed of the wind. As per the requirement of the load it adjusts the output voltage by acting as a BUCK or BOOST converter.