Description : All electronic equipment work on electrical power. They all have a power supply that supplies needed currents at appropriate voltage levels to all the circuits inside the equipment. A good power supply not only supplies requisite amount of power, It also keeps the costly equipment fully protected in case of a component failure. The design of a good power supply therefore needs a careful consideration. This book describes power supply designs in a simple and easy to understand language with specific stress on practical aspects of such designs. Contents : Introduction Cells and Batteries Transformers Rectifiers Filters Power supply protection Unregulated supplies Voltage stabilization Electronic Regulators IC Regulators Fixed Voltage Regulators Three-Terminal Regulators Adjustable Output Voltage Regulators Practical Circuits Inverters and Converters Overview of SMPS Switch Mode Power Supplies SMPS Circuits SCR Controlled Power Supplies Television Power Supplies Uninterruptible Power Supplies