Design and Construction of 30.25 Watts Audio Power Amplifier
Keywords:
Audio, Power, Amplifier, Distortion, EfficiencyAbstract
Audio power amplifiers are electronic circuit that boost or strengthens an input signal by providing amplification. The nature of the signal could be any of the following: voltage, current or power. In the present-day era, most, small and medium size electronic devices used integrated circuit chip to perform audio power amplification. The paper designed and constructed 30.25 W audio power amplifier using TDA2040 module from the circuit digest. The simulation of the circuit was carried out using proteous 8 professional. The power supply unit was constructed using 12V-0-12V center-tap step-down transformer and thereafter the amplifier. The results of the device showed that the amplifier exhibited low distortion. The output power and efficiency were found to be 30.25 watts 78.5 % respectively. Furthermore, the agreement between the simulated and experimental result confirms the good performance of the amplifier.
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