EMVs/AudioAmp

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The project is presented to the [http://www.emvs.ch/ EMVs] students.
 
The project is presented to the [http://www.emvs.ch/ EMVs] students.
 
They are provided with [[EMVs/AudioAmp/fr/specifications|specifications in french]].
 
They are provided with [[EMVs/AudioAmp/fr/specifications|specifications in french]].
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[[Category:AudioAmp]]

Revision as of 14:45, 30 January 2013

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.

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