PWM Effekt Audioförstärkare
Independent thesis Basic level (professional degree)Student thesisAlternative title
PWM Power Audio Amplifier (English)
The purpose with the report is to show that it is possible to design a class-D amplifier, using a programmable FPGA mounted on a developing card from Xess and a H-bridge. The FPGA was programmed in VHDL which is the language the software from Xilinx use to implement a logical function into the FPGA The logical function corresponds to a modeling of the music signal and the modeling can be described as a comparator which compare the music signal with a triangle wave and as a out signal produce a pulse width modulated (PWM) signal. The report is also a review and evaluating of two different modulating technologies, AD- modeling and BD-modeling. A detailed part about how the H-bridge was designed and how it works. The result of this project is a working audio amplifier to a significant lower price than the products in todays market.
Place, publisher, year, edition, pages
Institutionen för systemteknik , 2004.
Electronics, Power amplifier, Klass-D förstärkare, Effektförstärkare, PWM-audio amplifier
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-2637OAI: oai:DiVA.org:liu-2637DiVA: diva2:19973