Nowadays the supply of electricity is very important to the people. Intangible energy supplies are needed in almost every area of our lives for home applications, research centers, hospitals etc. Due to the increasing demand for energy and the widespread use of natural resources, which are naturally limited, there is a need. https://www.theijire.com/archives/paper-details?paperid=243&papertitle=auto-power-supply-control-from-four-different-sources