Australian power products companies have released its next generation of DC DC converters (which is also known as linear converter or switching regulator). This has a wide input range from 43 volts to 154-volt input with power levels up to 240 Watt. It has the efficiency of up to 93 percent. This kind of converters has the target on new rail transportation applications. Modern trains require a wide range of linear converter to power a variety of new applications. The railway systems require this as it has the capabilities to control voltages. It can control and monitor the application to keep it safe. The railway applications demand high-performance and reliable power systems for the security and safety of the applications. The new series of these amazing railway DC DC converters contain the regulated and isolated component that can operate a wide range of input voltage. These new converters simplify power system design to support multiple input voltage ranges. As it has high