EMVs/AudioAmp
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+ | The Audio amplifier project is a one day sneak preview of the electronics taught at the | ||
+ | [http://electricite-mecanique.hevs.ch/ Industrial Systems] section of [http://www.hevs.edu/ 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 [http://www.emvs.ch/ EMVs] students. | ||
+ | They are provided with [[fr/specifications|specifications in french]]. |
Revision as of 10:41, 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.