Development of a test bench unit

Abstract

This project appointed by the Higher Technical Institute,deal with the design,construction,test and calibration of a bench top test unit. The bench unit consist of 1. A variable stabilized power supply. 2. A fixed supply. 3. A waveform generator facility. 4. A voltage and current measuring arrangement. The basic principles of a power supply and description of the actual power supply circuit used are contained in chapter1. In chapter 2 the features and the basic circuits of the 3-pin regulator are discuss along with the circuit used. In chapter 3 the use and operation of the waveform generator is discus along with the type of oscillators used. Chapter 4 gives information about the use of a meter,and how can we use the same meter for a wide range of voltages and currents,also the description of the circuit is included.