EMVs/AudioAmp
From FSI
The Audio amplifier project is a one day sneak preview of the electronics taught at the Industrial Systems section of HES-SO//Valais Wallis. As such, it presents a mixed analog/digital system.
The system consists of:
- an A/D converter which receives an audio signal
- a digital circuit (FPGA) which mutiplies this signal bya gain and builds a Pulse Width Modulated (PWM) signal out of it
- a class D amplifier which drives a loudspeaker from the PWM signal
- a step-up circuit which generates a power supply voltage from a 12 V battery in order to have enough power to drive the loudspeaker
The project is presented to the EMVs students. They are provided with specifications in french.