The DC DC converter (which is also known as linear converter or switching regulator) is a solution for power supply in the harsh environments. This is basically used in railway and industrial applications. The reliable converter can control and operate the power between -40 degrees centigrade to 85 degrees centigrade temperature range. Along with this, it offers up to 92% efficiency. Australian power equipment companies design this product to keep in mind its variety of features. The engineers provide the products with flexibility that need to operate the electrical devices. All of these devices in industrial sectors employ high power compact converters especially in over-current, over-temperature, over-voltage and short-circuit protections and which has remote-controlling on/off features. • Designing of the linear converter: Many of the power companies offer this linear converter especially the brick series that are suitable for the use of industrial products and which