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INTEGRATED CONTROL SYSTEMS FOR AUDIO AMPLIFIERS IN PORTABLE DEVICES
This project aims at designing and implementing an integrated control system for an audio power amplifier system for portable devices, having good efficiency and sound quality. The proposed design controls a DC-DC converter to produce a varying power supply to a class AB output stage. The varying power supply tracks the input audio signal and therefore significantly improves the efficiency. The system includes the DC-DC converter, the digital regulator, and the class AB output stage. The simulation of the designs will be done in both Matlab and Cadence. The final control system will be prototyped on a FPGA for characterization along with the DC-DC converter on a test board.
Faculty Supervisor:
Stefano Gregori
Student:
Partner:
Discipline:
Engineering
Sector:
Manufacturing
University:
University of Guelph
Program:
Accelerate
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Mitacs is funded by the Government of Canada, the Government of Alberta, the Government of British Columbia, Research Manitoba, the Government of New Brunswick, the Government of Newfoundland and Labrador, the Government of Nova Scotia, the Government of Ontario, Innovation PEI, the Government of Quebec, the Government of Saskatchewan, and the Government of Yukon.