Caracterização elétrica do diodo de sinal 1N4148

Abstract

The objective of this work is the electrical characterization of the 1N4148 signal diode. For the present work, bibliographic research was used on the functioning of the component, a conventional workbench was set up in the laboratory of Industry II of the IFAM-CMDI, the voltage and current data of the component will be collected in the circuit mounted on a protoboard, in the Excel program it will be After plotting the XY dispersion graph of the characteristic curve of the voltage versus current of the 1N4148 signal diode, the Multisim program will simulate the circuit and the characteristic curve of the component to be compared with the data collected on the conventional bench and from the Datasheet of the 1N4148 signal diode . The results of the electrical measurements obtained in the practical experiment in the laboratory were quite satisfactory, as observed in the graphs of the characteristic curve of the component, the values are close to the Datasheet supplied by the manufacturer and the values obtained in simulations in the Multisim program. With the development of the work we also managed to improve the knowledge about the operation, electrical characteristics and applications of diodes. The work can be used by technical and higher level students, facilitating their learning in surveying the characteristic curves of the signal diode, through the conventional workbench and the Multisim and Excel programs.