Projeto, implementação e testes de um amplificador de áudio de alta fidelidade para fones de ouvido

Abstract

In this monograph, a high fidelity audio amplifier with tone control for headphones was developed. Circuits are built on printed circuit boards using discrete components. Topologies were initially determined to be simulated and tested. A prototype was assembled in an aluminum metallic box with on and off buttons and connectors. The results obtained were satisfactory, the amplifier presented distortions below 0.5%, upper cutoff frequency above 20kHz and slew rate above the minimum required. The project met all the requirements initially determined.