With the accelerate implementation of information and the rapid development of e-commerce and e-government, the network security is of great significance. Now people are more concerned about how to ensure working at a trusted network environment. In

In this paper output voltage of chosen buck DC – DC converter is regulated at nominal output voltage of 13 volts under [1] under supply disturbance of 20 to 25 volt and vice versa [2] under load disturbance of 28 to 50 ohms and vice versa. The perfor