Class D Audio Amplifier
Format
SOECS Senior Project Demonstration
Abstract/Artist Statement
The goal of this project is to complete a working Class D audio amplifier that can produce up to 30 Watts of peak-power in order to drive a speaker system from a high quality audio device. The Class D amplifier concept was first conceived in the early 1960’s and implemented in 1982. Recently it has been re-examined and found to be a very efficient audio amplifier because of technological breakthroughs in the MOSFETs the amplifier uses for switching. This has led to Class D amplifiers becoming prevalent in today’s consumer audio market. In theory a Class D amplifier can obtain 100% efficiency with ideal switching. Our design goal is to achieve more than 75% efficiency. We plan on presenting the theory behind Class D Amplifiers our pre-implementation design work the measurements we took of the circuit and of the audio output spectrum analysis. In the end we plan to obtain an amplified high-fidelity audio signal.
Location
Pacific Geosciences Center
Start Date
30-4-2005 2:00 PM
End Date
30-4-2005 5:00 PM
Class D Audio Amplifier
Pacific Geosciences Center
The goal of this project is to complete a working Class D audio amplifier that can produce up to 30 Watts of peak-power in order to drive a speaker system from a high quality audio device. The Class D amplifier concept was first conceived in the early 1960’s and implemented in 1982. Recently it has been re-examined and found to be a very efficient audio amplifier because of technological breakthroughs in the MOSFETs the amplifier uses for switching. This has led to Class D amplifiers becoming prevalent in today’s consumer audio market. In theory a Class D amplifier can obtain 100% efficiency with ideal switching. Our design goal is to achieve more than 75% efficiency. We plan on presenting the theory behind Class D Amplifiers our pre-implementation design work the measurements we took of the circuit and of the audio output spectrum analysis. In the end we plan to obtain an amplified high-fidelity audio signal.